text:
Electric battery cell making
Subclass of:
029 - Metal working
029592100 - Electrical device making
Patent class list (only not empty are listed)
Deeper subclasses:
|Class / Patent application number
|Number of patent applications / Date published
|Including coating or impregnating
|Including sealing
|Including adhesively bonding
|Including laminating of indefinite length material
|METHOD FOR MANUFACTURING GEL LITHIM BATTERY - A method for manufacturing a gel lithium battery is provided. The method includes steps of: fabricating a core device; placing the core device in a bag and injecting a reactive electrolyte into the bag; pre-charging the core device and the reactive electrolyte to cause chemical reactions of the core device and the reactive electrolyte; performing a heating process on the bag to cause a gel formation and aging of the reactive electrolyte; and performing an activation procedure on the core device and the reactive electrolyte in the bag to complete manufacturing the gel lithium battery. By pre-charging the core device and the reactive electrolyte, a structure of the core device is prevented from damages caused by expansion due to the heating and gel formation. The gel lithium battery disclosed offers enhanced quality and life cycle as well as low costs and high stability.
|JELLY-ROLL TYPE ELECTRODE ASSEMBLY AND SECONDARY BATTERY INCLUDING THE SAME - An electrode assembly including a first electrode strip having a first electrode collector coated with at least a first electrode active material, an exposed portion of the first electrode collector attached with a first electrode tab; a second electrode strip having a second electrode collector coated with at least a second electrode active material and is rolled together with the first electrode strip, an exposed portion of the second electrode collector is attached with a second electrode tab; and at least one inter-electrode strip separator is positioned between the first and second electrode strips, wherein at least one sheet of protective separator, which is extended from the inter-electrode strip separator, is further positioned on a side of the first electrode strip attached with the first electrode tab.
|HEAT-RESISTANT NONWOVEN FABRIC - The present invention discloses a heat-resistant nonwoven fabric comprising a layer having heat resistance property and a layer having anti-oxidative property, wherein the heat-resistant nonwoven fabric has a puncture strength of 0.5 N or more after heat treatment at 250° C. for 50 hours; and a position of an absorption band (A) showing a maximum infrared absorbance in the region of 500 cm
|METHOD FOR MANUFACTURING ALL-SOLID-STATE BATTERY - A main object of the present invention is to provide a method for manufacturing an all-solid-state battery capable of inhibiting a short circuit. The present invention is a method for manufacturing an all-solid-state battery including a cathode layer, an anode layer, and a solid electrolyte arranged between the cathode layer and the anode layer, the method including: a first pressing step of pressing the solid electrolyte layer at a first pressure before arranging the solid electrolyte layer between the cathode layer and the anode layer; and a second pressing step of pressing the solid electrolyte layer which has been pressed in the first pressing step and is arranged between the cathode layer and the anode layer, at a second pressure smaller than the first pressure.
|POLYMER ELECTROLYTE FUEL CELL, ELECTROLYTE MATERIAL THEREFORE AND METHOD FOR ITS PRODUCTION - An electrolyte material for a polymer electrolyte fuel cell, which is made of a copolymer comprising repeating units based on CF
|METHODS OF MANUFACTURING MULTI-FUNCTIONAL ELECTRODE DEVICES FOR FAST-CHARGING OF ENERGY-STORAGE DEVICES - Methods for manufacturing multi-functional electrode (MFE) devices for fast-charging of energy-storage devices are provided. The method includes assembling first MFE structure for forming a suitable electrochemical half-couple, the first MFE structure having a first fast-charging component (FCC) and a first MFE assembly and a counter-electrode structure for forming a complementary electrochemical half-couple and supplying an internal voltage controller (IVC) for applying a bias potential to the first MFE structure and/or the counter-electrode structure, the bias potential is set in accordance with the first MFE structure and said counter-electrode structure. The IVC is configured to regulate an intra-electrode potential gradient between the first FCC and the first MFE assembly to control a charge rate from the first FCC to the first MFE assembly.
|Process for Making a Catalytic Electrode and Electrochemical Cell Using the Electrode - A process for making a catalytic electrode, a process for making an electrochemical cell with a catalytic electrode, and an electrochemical cell made according to the process. The catalytic electrode has an active layer comprising a catalytic material, an electrically conductive material and a binder, and a gas diffusion layer including a material that is permeable to gas entering or escaping from the cell but essentially impermeable to electrolyte. The gas diffusion layer is adhered to the active layer by a patterned pressure bonding process to provide the catalytic electrode in which the entire gas diffusion area is adhered to the active layer, with areas of relatively high and relatively low adhesion. The electrode has a high overall bond strength, and the permeability of the gas diffusion layer remains high it has been adhered to the active layer to provide excellent high power capability.
|Electrolyte Additive for Non-Aqueous Electrochemical Cells - An electrochemical secondary cell is disclosed. The cell includes a cathode, an anode, a current collector including aluminum, and an electrolyte containing a perchlorate salt and a second salt. The electrolyte is essentially free of LiPF
|METHOD OF FORMING AN ELECTRODE ASSEMBLY - When electrode films are prepared for lithium electrochemical cells, problems are often encountered in laminating the films with an appropriate intervening electrolyte layer. This presents a significant challenge because proper alignment of the three layers and complete lamination at the interfaces are crucial to good cell performance. Often lamination is imperfect with gaps and defects at the interfaces. The disclosure herein describes a method of casting or extruding a polymer electrolyte directly onto an electrode film to create an electrode assembly with a continuous, defect-free interface. In some arrangements, there is some slight intermixing of the layers at the interface. A complete cell can be formed by laminating two such electrode assemblies to opposite sides of an additional electrolyte or to one another.
|LITHIUM-ION SECONDARY BATTERY, BATTERY STACK, AND METHOD OF MANUFACTURING LITHIUM-ION SECONDARY BATTERY - A lithium-ion secondary battery includes a positive electrode plate, a negative electrode plate, and a separator. The positive electrode plate includes a positive electrode collector plate and a positive electrode active material layer formed on the surface of the positive electrode collector plate. The negative electrode plate includes a negative electrode collector plate and a negative electrode active material layer formed on the surface of the negative electrode collector plate. The separator is disposed between the positive electrode plate and the negative electrode plate. The positive electrode plate, the negative electrode plate, and the separator are stacked and wound, and each of them includes a flat portion disposed along a plane and bearing an external load and a curved portion formed to be curved. The positive electrode active material layer includes a flat region corresponding to the flat portion and a curved region corresponding to the curved portion. The density of the positive electrode active material layer in at least a portion of the curved region is higher than the density of the positive electrode active material layer in the flat region.
|BATTERY PARTS AND ASSOCIATED SYSTEMS AND METHODS - Battery parts, such as battery terminals, and associated systems and methods for making same. In one embodiment, a battery part has a sealing region or sealing bead located on a lateral face of an acid ring for increasing resistance to leakage therepast as the battery container shrinks. Another embodiment includes a forming assembly for use with, for example, a battery part having a bifurcated acid ring with spaced apart lips. The forming assembly can include movable forming members that can be driven together to peen, crimp, flare or otherwise form the lips on the bifurcated acid ring.
|ELECTROCHEMICAL DEVICE AND METHOD FOR PRODUCTION THEREOF - An electrochemical device of the present invention includes a positive electrode, a negative electrode, a non-aqueous electrolyte, and a separator. The separator includes a first porous layer composed mainly of a thermoplastic resin and a second porous layer composed mainly of insulating particles with a heat-resistant temperature of 150° C. or higher. The first porous layer is disposed to face the negative electrode.
|METHOD FOR INJECTING ELECTROLYTE - A method for injecting an electrolyte includes heating a case in which an electrode assembly is accommodated, and injecting an electrolyte into the case after the heating of the case. Here, the heating of the case may include heating the case through high-frequency induction heating using a coil. Also, the coil may have a spiral shape to surround the outside of the case along a longitudinal direction of the case.
|METHOD OF FABRICATING STRUCTURED PARTICLES COMPOSED OF SILICON OR A SILICON-BASED MATERIAL AND THEIR USE IN LITHIUM RECHARGEABLE BATTERIES - Pillared particles of silicon or silicon-comprising material and a method of fabricating the same are disclosed. These particles may be used to create both a composite anode structure with a polymer binder, a conductive additive and a metal foil current collector, and an electrode structure. The structure of the particles overcomes the problems of charge/discharge capacity loss.
|METHOD OF MANUFACTURING AN ELECTRODE ASSEMBLY FOR A RECHARGEABLE BATTERY - A method of manufacturing an electrode assembly for a rechargeable battery is disclosed. The method comprises providing a first electrode plate comprising an active portion that is coated with a first active material and an inactive portion extending from an edge of the active portion of the first electrode plate; providing a second electrode plate comprising an active portion that is coated with a second active material and an inactive portion extending from an edge of the active portion of the second electrode plate; providing a separator; winding the first electrode plate, the second electrode plate and the separator, the separator interposed between the first and second electrode plates; and removing parts of the inactive portion of the first electrode plate and the inactive portion of the second electrode plate to form a first plurality of electrode tabs for the first electrode plate and a second plurality of electrode tabs for the second electrode plate.
|Battery Cathodes - Batteries and related compositions and methods are disclosed. In some embodiments, a method of making a battery can include heating at least one cathode including a cathode material in an atmosphere including oxygen, heating the cathode in a vacuum, adding the cathode into a housing, adding a separator into the housing, and adding an anode into the housing.
|BATTERY ELECTRODE MANUFACTURING APPARATUS AND METHOD THEREOF - A battery electrode manufacturing apparatus including: a front end die which cuts a strip-shaped electrode material into an electrode shape; a hand which grasps the electrode material and conveys the electrode material to the cutting position of the front end die; and a first suction conveyor which is disposed upstream of the front end die in a conveying direction and has a supporting surface for supporting the electrode material during the cutting by the front end die. The hand includes a first grasper and a second grasper, and the first suction conveyor is disposed between the first grasper and the second grasper. The hand carries the electrode material to the cutting position, at such a position that the electrode material does not contact the front end die and the first suction conveyor.
|PRODUCTION DEVICE FOR PACKAGED ELECTRODE AND MANUFACTURING METHOD OF PACKAGED ELECTRODE - A production device
|METHOD OF MANUFACTURING PRISMATIC BATTERY - Provided is a method of manufacturing a prismatic battery, or a series of prismatic batteries. The method comprises stacking positive electrode plates, negative electrode plates and separator layers therebetween. The positive and negative electrode plates extend beyond a periphery of the electrode stack. The positive electrode plates are fused to form a positive current collector, and the negative electrode plates are fused to form a negative current collector.
|METHOD FOR MANUFACTURING LEAD GRIDS FOR BATTERY ELECTRODES - A method for manufacturing lead grids for battery electrodes includes providing a lead strip at a cutting and ablation station, cutting the lead strip by at least one laser beam that cuts and reduces the thickness of the lead strip to form a lead grid, and supporting the lead strip, at least at the cutting and ablation station, without interfering with the laser beam. The lead strip may be supported in a limited number of discrete positions which are as little as possible coincident with the cutting positions of the laser beam. Alternatively, the lead strip is supported by means transparent to the wavelength of the laser. The laser beam is focused and moved by a generally remote scanning and/or proximity head, preferably mounted on a motion system which controls its position according to a selected cutting path and controls the focal position. The process allows continuous control of the path and/or parameters of cutting and/or ablation by means of software.
|CHEMICALLY TREATED CURRENT COLLECTOR FOIL MADE OF ALUMINIUM OR AN ALUMINIUM ALLOY - The invention relates to a current collector foil made of aluminium or an aluminium alloy, to the use of the current collector foil for batteries or accumulators, in particular lithium-ion accumulators, and to a method for producing the current collector foil. The object of providing a current collector foil, which has very good properties with regard to conductivity and tensile strength, and which can also be produced economically, is achieved in that the current collector foil has an acid-pickled or alkali-pickled surface.
|BATTERY ASSEMBLING APPARATUS AND BATTERY ASSEMBLY MANUFACTURING METHOD - A battery assembling apparatus of one aspect of the invention comprises: first and second rotary tables arranged to face each other at points on respective outer circumferences and rotate in forward directions relative to each other; a battery holding part provided on the outer circumference of the first rotary table to hold a battery; a frame holding part provided on the outer circumference of the second rotary table to hold a frame; a battery supplying part for supplying batteries to the battery holding part at a position different from a facing position between the first and second rotary tables; a frame supplying part for supplying frames to the frame holding part at a position different from the facing position; and a discharging part for taking out an assembly of a battery and a frame assembled together from the facing position, the first and second rotary tables being rotated with a rotation speed ratio and in a phase relationship such that the battery holding part and the frame holding part face each other every time at the facing position. Accordingly, the batteries and the frames for accommodating the cells can be accurately assembled with high productivity.
|BATTERY STRUCTURES, SELF-ORGANIZING STRUCTURES AND RELATED METHODS - An energy storage device includes a first electrode comprising a first material and a second electrode comprising a second material, at least a portion of the first and second materials forming an interpenetrating network when dispersed in an electrolyte, the electrolyte, the first material and the second material are selected so that the first and second materials exert a repelling force on each other when combined. An electrochemical device, includes a first electrode in electrical communication with a first current collector; a second electrode in electrical communication with a second current collector; and an ionically conductive medium in ionic contact with said first and second electrodes, wherein at least a portion of the first and second electrodes form an interpenetrating network and wherein at least one of the first and second electrodes comprises an electrode structure providing two or more pathways to its current collector.
|WINDING DEVICE, WINDING METHOD, INSPECTION DEVICE AND STRUCTURE MANUFACTURING METHOD - Provided is a winding apparatus that is provided with a splitter that splits radiant light from a light source unit into measurement light applied to a side face part of a first sheet and a second sheet and reference light applied to a reference surface, an interference detector that detects interference light formed by interference between the reference light reflected by the reference surface and the measurement light reflected by the side face part, a position detector that detects the position of the first sheet and the position of the second sheet on the basis of the detected interference light, and a decision processor that decides the quality of the wound body on the basis of the detected positions of the first sheet and the second sheet.
|Method for Manufacture of Battery Pouch Terminals - A manufacturing method for battery pouches enables the subsequent welding together of a stack of battery terminals with an interconnect member to form a battery pack. According to the method, a plurality of pouches containing energy storage medium and having positive terminals and negative terminals extending therefrom are supported side by side in a pouch supporting fixture and lids are lowered to clamp the pouches against movement. The terminals are clamped against movement by clamping the terminals at the bases thereof. Then, the end portions of the terminals are bent by die mechanisms to provide an offset shape in each terminal by which when the pouches are stacked adjacent one another, the positive terminals will contact one another and the negative terminals will contact one another. The clamping and bending are performed in a way that prevents the flow of electrical current between the positive and negative terminals.
|BATTERY PRESSING DEVICE AND BATTERY PRESSING METHOD - A battery pressing device for pressing a battery cell, the battery cell including an external casing, an electrolyte, a battery element in which electrodes and a separator are arranged in layers in the external casing, electrode terminals extending out of the external casing from an end of the battery element, and an insulating member for preventing short-circuiting of the electrode terminals attached to the electrode terminals inside the external casing, the battery pressing device includes a pressing member configured to press the battery cell in a layering direction of the battery element over a region so as to avoid pressing the insulating member inside the external casing.
|METHOD FOR PRODUCING LITHIUM OR SODIUM BIS(FLUOROSULFONYL)IMIDE - The invention relates to a process for the preparation of a bis(sulphonato)imide salt of formula:
|STACKING SYSTEM - A stacking apparatus includes a first rotating table that is equipped with a plurality of stacking regions and intermittently rotates the plurality of stacking regions respectively to a plurality of work positions, a first turning unit; and a second turning unit. The first turning unit includes a first arm that turns between the first stacking position and a first pickup position where an anode sheet is picked up and a second arm that turns in concert with movement of the first arm between the first stacking position and a second pickup position where a separator is picked up. The second turning unit includes a third arm that picks up a cathode sheet and a fourth arm that turns in concert with movement of the third arm and picks up a separator.
|BATTERY MANUFACTURING - A method of manufacturing a battery is provided. A cathode assembly is provided, including a cathode and a cathode tab. The cathode tab is welded to a positive terminal of the battery. The welding is made in a circular movement.
|METHOD OF MAKING NON-AQUEOUS ELECTROCHEMICAL CELL - A method of making a lithium electrochemical cell includes treating the cathode active material with an agent that includes lithium but not sodium. A cathode including the cathode active material, an anode, a separator, and an electrolyte are assembled in a housing to provide a cell containing less than 1500 ppm by weight of sodium.
|Manufacturing Method of Stacked Electrodes By Winding Type Electrode Stacking and Stacked Electrode Thereby - The present invention relates to a electrode stacking method, wherein electrodes are stacked in such a manner that the electrodes are disposed to face each other on both sides of a separation layer to which predetermined tension force is applied along the longitudinal direction of said separation layer, and the electrode assembly is turned so that another separation layer is formed outside the electrodes. According to the rechargeable lithium ion batteries in accordance with the present invention, the electrode stack in which the arrangement of anode electrodes and cathode electrodes is not disordered because uniform stress is applied to the entire battery and the separation layer maintains a constant tension force can be fabricated. Accordingly, the lifespan of a rechargeable lithium ion battery can be increased, and the input and output characteristic of the battery can be improved.
|METHOD FOR MANUFACTURING A BIPOLAR BATTERY WITH A GASKET - A gasket is for use in a starved electrolyte bipolar battery. The gasket may be made from a hydrophobic material in the shape of a frame to prevent the creation of an electrolyte path between adjacent cells when mounted in a battery. The frame may be designed to at least partially encompass a biplate when mounted in a bipolar battery, and include a device or way to permit gas passage through the gasket. The gasket may be made from a material with deformable properties to provide a sealing to a biplate and/or endplate when mounted in a bipolar battery, whereby an outer pressure tight seal of the battery may be obtained. A starved bipolar battery and a method for manufacturing a starved bipolar battery are also disclosed.
|METHOD FOR REUSING SECONDARY BATTERY - A method for reusing a secondary battery by reusing unit cells or battery modules constituting reclaimed assembled batteries (or battery packs) to reconstruct a new assembled battery is disclosed. Assembled batteries are reclaimed, and disassembled into battery modules. The battery modules are selected based on battery characteristics such as an open-circuit voltage (OCV) and the like using an absolute acceptable range and a relative acceptable range, and a new assembled battery is rebuilt. The relative acceptable range is an acceptable range which is set for each assembled battery, and is set to have its center at an average value of a battery characteristic distribution.
|SECONDARY BATTERY MANUFACTURING METHOD AND MANUFACTURING APPARATUS - A secondary battery manufacturing method enables smooth pulling of a separator by guide members by inhibiting a phenomenon in which, when the separator is being pulled by the guide members, the separator moves in the width direction and rattles. The method includes pulling in a separator by guide bars to zigzag-fold the separator; and suspending the separator between the guide bars via a suspension roller while locating buffer rollers at a predetermined descending position, the buffer rollers being disposed between support rollers for supporting the separator at midpoints upstream, in the transport direction of the separator, of the suspension roller, the buffer rollers being ascendable and descendable in contact with an upper surface of the separator to be adjustable vertically, and allowing the buffer rollers to ascend in accordance with movement of the guide bars, thereby supplying the separator of a length pulled in by the guide bars.
|STACKING APPARATUS AND STACKING METHOD - A stacking apparatus having a cylindrical conveyance drum holding and rotating to covey a separator and an electrode conveyance unit conveying a positive electrode in a tangential direction of the conveyance drum so that the positive electrode overlaps the separator. To the outer circumferential surface of the conveyance drum, there are defined a suction area for drawing the separator that is non-rotatably positioned on an upstream side of a rotation direction of the conveyance drum with respect to a location to which the positive electrode in conveyed and a non-suction area for removing the separator that is non-rotatably positioned on a downstream side of the rotation direction of the same. The separator in the suction area is conveyed to the non-suction area, is removed from the outer circumferential surface, and is transferred onto the positive electrode, thereby gradually stacking the separator on the positive electrode.
|REACTIVE POLYMER-SUPPORTING POROUS FILM FOR BATTERY SEPARATOR AND USE THEREOF - A reactive polymer-supporting porous film is provided as a battery separator which comprises a porous substrate film and a partially crosslinked reactive polymer supported on the porous substrate film. The partially crosslinked reactive polymer is obtained by the reaction of a crosslinkable polymer having at least one group selected from the 3-oxetanyl group and epoxy group reactive with a polycarboxylic acid. The reactive polymer-supporting porous film has a separator and electrodes sufficiently bonded to each other and with low inner resistance suitably used for production of battery excellent in high rate performance. Further, provided is a method of producing a battery which comprises placing the electrode/reactive polymer-supporting porous film layered body in a battery container; introducing an electrolytic solution containing a cationic polymerization catalyst into the battery container thereby bonding the porous film and electrodes together.
|PRE-TREATING SEPARATOR TO ENABLE SEPARATOR FOR PICK AND PLACE OPERATION - The described embodiments relate to methods and apparatus for improving pick and place operations. Pick and place operations involving the movement of flexible substrates can be improved by cooling a flexible substrate below a threshold temperature at which the flexible substrate transitions from a flexible state to a rigid state. Once in the rigid state, the flexible substrate can be handled and maneuvered by pick and place operations for a period of time with a limited risk of the flexible substrate wrinkling and tearing. In some embodiments, the flexible substrate is a thin polymeric substrate used to separate oppositely charged battery cells within a battery assembly.
|METHOD FOR PRODUCING PRISMATIC SECONDARY CELL - A method for producing a prismatic secondary cell housing a flat electrode assembly includes disposing a first current-collecting member onto a first to-be-welded portion at a flat portion of an edge of the electrode assembly where a core-body exposed portion of the first electrode protrudes. A first receiving member is disposed onto a plane opposing the flat portion. The first current-collecting member, the core-body exposed portion, and the first receiving member are resistive-welded with the core-body exposed portion between the other members. A second current-collecting member is disposed onto a second to-be-welded portion at a position of the flat portion distanced from the first to-be-welded portion while avoiding contact between the collecting members. A conductive connecting member is placed between the collecting members or between the receiving members. The conductive connecting member and its abutting members are welded. One of the members is electrificably connected to an external output terminal.
|PRESS APPARATUS - A press apparatus for assembly of a battery pack includes a tooling table having an aperture formed therein. The tooling table includes a plurality of index pawls disposed adjacent the aperture. The index pawls militate against the components passing upwardly through the aperture after the components have passed downwardly through the aperture. A first press is disposed on a first side of the tooling table and configured to advance the components downwardly through the aperture and past the index pawls on the tooling table. A second press is disposed on a second side of the tooling table. The second press is configured to retract a distance that the components are pressed downwardly through the aperture and maintain a substantially constant upward force on the components. A third press is disposed on the first side of the tooling table and configured to compress the battery pack to a desired size and load.
|MANUFACTURING METHOD OF NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A manufacturing method of a nonaqueous electrolyte secondary battery includes: a lithium phosphate dispersion manufacturing step of manufacturing a lithium phosphate dispersion by dispersing lithium phosphate in a solvent without adding a positive-electrode active material; a positive electrode mixture paste manufacturing step of manufacturing a positive electrode mixture paste by mixing the lithium phosphate dispersion with a positive electrode material including the positive-electrode active material; and a step of manufacturing a positive electrode including a positive electrode mixture layer on a surface of a current collector member by applying the positive electrode mixture paste on the surface of the current collector member and drying the positive electrode mixture paste.
|BIPOLAR UNIT FOR FUEL CELL PROVIDED WITH POROUS CURRENT COLLECTORS - The invention describes a bipolar unit consisting of a pair of metal plates at least one of which is corrugated, fixed by continuous and hydraulically impervious connections, and provided on the external surfaces thereof with porous electric current collectors also suitable for the distribution of the gaseous reactants. The collector facing the plate corrugations is interpenetrated therein, thereby achieving a continuous contact. Two bipolar units of the invention and one interposed MEA element are assembled to form an elementary fuel cell with an improved electric current distribution. Furthermore the channels formed between the mutually contacting surfaces of the plate pair by the corrugations of at least one of the plates of each bipolar unit, are crossed by a coolant allowing to optimally adjust the cell operative temperature.
|BATTERY PRODUCTION METHOD - A method for producing a battery comprises a deformation step for moving a first metal foil (
|ELECTROCHEMICAL DEVICE COMPRISING ALIPHATIC MONO-NITRILE COMPOUND - Disclosed is a cathode comprising a complex formed between the surface of a cathode active material and an aliphatic mono-nitrile compound, and an electrochemical device comprising the cathode. A non-aqueous electrolyte containing a lithium salt, a solvent and an aliphatic mono-nitrile compound, and an electrochemical device comprising the electrolyte are also disclosed. The electrochemical device shows excellent low-temperature characteristics, high-temperature life characteristics and safety.
|Method of Controlled Cell-Level Fusing Within a Battery Pack - A method is provided that achieves improved battery pack performance, system reliability and system safety while impacting only a small region of the battery pack/battery module, and thus having only a minor impact on battery pack cost, complexity, weight and size. The battery pack/battery module is designed such that the fusible interconnects associated with a single battery, or a specific fusible interconnect associated with a single battery, will be the last interconnect(s) to fuse during a short circuit event. The risk of sustained arcing for the predetermined interconnect(s) is minimized through the use of rapid clearing interconnects. As a result, the risk of damage and excessive heating is also minimized.
|ACTINIC AND ELECTRON BEAM RADIATION CURABLE ELECTRODE BINDERS AND ELECTRODES INCORPORATING SAME - A process for manufacturing an electrode utilizing electron beam (EB) or actinic radiation to cure electrode binding polymers is provided. A process is also disclosed for mixing specific actinic or EB radiation curable chemical precursors with electrode solid particles, application of the mixture to an electrode current collector, followed by the application of actinic or EB radiation to the current collector for curing the polymer, thereby binding the electrode material to the current collector. Lithium ion batteries, electric double layer capacitors, and components produced therefrom are also provided.
|PLUG AND PLAY BATTERY SYSTEM - An energy storage module (ESM) for spacecraft has at least one battery. The ESM has a first interface to at least one string of solar cells configured for charging of the battery, a second interface to a spacecraft for outputting power from the battery and a third interface for communicating to other spacecraft modules. The ESM has a charge controller coupled with the battery and the first, second and third interface. The charge controller has a microprocessor with firmware to autoconfigure a system configuration of the battery and, in an embodiment, connections of strings of solar cells to the charge controller, and to present determined configuration and state of charge to other components of the spacecraft. In embodiments, the microprocessor has firmware for contacting another parallel-connected ESM and to present total power available in both ESMs to other modules of the satellite, and charging of the batteries can be coordinated.
|STACKING DEVICE AND STACKING METHOD - A first holding unit (
|NONAQUEOUS ELECTROLYTE COMPOSITION, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR MANUFACTURING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte composition includes an electrolyte salt, a nonaqueous solvent, a matrix polymer, and a ceramic powder, wherein the ceramic powder has an average particle size of 0.1 to 2.5 μm and a BET specific surface area of 0.5 to 11 m
|METHOD FOR MANUFACTURING ELECTRODE SHEETS AND APPARATUS THEREFOR - According to the method for manufacturing electrode sheets, in a first cutting step, an original sheet, including a belt-shaped metal foil and an electrode material coated thereon in a lengthwise direction to form a plurality of coated portions spaced at a predetermined gap, is cut at a location between the coated portions. In a pressing step, the original sheet strips having been cut in the first cutting step are pressed. In this case, the original sheet strips that are pressed by the rolling device are independent from each other. Therefore, the effect produced in rolling of the coated portions remains within each of the original sheet strips. In addition, distortions occurring in the original sheet strips can be prevented from affecting each other and the occurrence of wrinkles can be inhibited.
|Battery Connection Device and Method of Operation Thereof - A single battery connection device that allows for connection both to a battery post and to a battery side terminal. Regardless of whether the device is connected to the battery post or side terminal, the device may be used as part of a four-point Kelvin connection to the battery. Also, a method of connecting to either to a battery post or to a battery side terminal using a single device.
|BATTERY CASE FOR SECONDARY BATTERY - Disclosed herein is a battery case including a receiving part having an electrode assembly mounted therein, wherein the receiving part, which is formed by deforming a sheet type base material, is configured to have a stair-like structure in which at least one corner and/or surface forming a shape of the receiving part is deformed.
|LITHIUM-MANGANESE-TITANIUM CONDUCTIVE MATERIAL - This invention relates to a process to make a lithium-manganese-titanium-containing compound, which can be used as an electrode material in a lithium ion battery. The process dissolves the constituent materials in a polar, organic solvent to form a compound described by the formula LiMn
|MANUFACTURING METHOD OF COMPOSITE OXIDE AND MANUFACTURING METHOD OF POWER STORAGE DEVICE - An object is to reduce variation in shape of crystals that are to be manufactured. Raw materials are each weighed, solutions containing the respective raw materials are formed in an environment where an oxygen concentration is lower than that in air, the solutions containing the respective raw materials are mixed in an environment where an oxygen concentration is lower than that in air to form a mixture solution, and with use of the mixture solution, a composite oxide is formed by a hydrothermal method.
|Electric Storage Battery Construction and Method of Manufacture - An electric storage battery and method of manufacture thereof characterized by a feedthrough pin which is internally directly physically and electrically connected to an inner end of a positive electrode substrate. A C-shaped mandrel extends around the pin and substrate end enabling the pin/mandrel to be used during the manufacturing process as an arbor to facilitate winding layers of a spiral jellyroll electrode assembly. The pin additionally extends from the battery case and in the final product constitutes one of the battery terminals with the battery case comprising the other terminal. Active material is removed from both sides of the outer end of the negative electrode in the jellyroll to allow room for adhesive tape to secure the jellyroll. The electrolyte is injected through the open end of the case after the endcap is welded to the negative electrode but before sealing the endcap to the case. The electrolyte is preferably injected through the C-shaped mandrel to facilitate and speed filling.
|STRUCTURED SILICON ANODE - A battery can be fabricated from a substrate including silicon. This allows the battery to be produced as an integrated unit. The battery includes a anode formed from an array of spaced elongated structures, such as pillars, which include silicon and which can be fabricated on the substrate. The battery also includes a cathode which can include lithium.
|METHOD OF MANUFACTURING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - Provided is a method of manufacturing a nonaqueous electrolyte secondary battery. The method includes: forming an electrode assembly including a positive electrode plate and a negative electrode plate disposed with a separator interposed therebetween; arranging the electrode assembly and a nonaqueous electrolyte containing LiBOB (lithium bis(oxalato)borate) and LiPF
|METHOD FOR THE MANUFACTURE OF ELECTRODES - Method for manufacturing an electrode, in particular a negative electrode of an electrochemical cell, comprising the step of: drying a material of the electrode to be dried by means of a temperature gradient, wherein UV irradiation is present during the step of drying.
|Method for producing nonaqueous electrolyte secondary battery - Disclosed is a nonaqueous electrolyte secondary battery which is suppressed in increase of internal resistance, while having high capacity retention rate and small battery swelling even after a long use. Specifically disclosed is a method for manufacturing a nonaqueous electrolyte secondary battery, which is characterized by using a positive electrode containing a positive electrode active material having an α-NaFeO2 crystal structure and the following chemical composition: LixMnaNibCocOd (wherein 0
|METHOD AND APPARATUS FOR MANUFACTURING METAL SEPARATOR FOR FUEL CELL - The present invention provides an apparatus and method for manufacturing a metal separator for a fuel cell, which can manufacture large-sized metal separators in large quantities using metal plates such as stainless steel by thermoplastic deformation using an incremental and synchronized rubber molding process.
|AQUEOUS CATHODE SLURRY - A method of making a positive electrode includes forming a slurry of particles using an electrode formulation, a diluent, and oxalic acid, coating the slurry on a collector and drying the coating on the collector to form the positive electrode. The electrode formulation includes an electrode active material, a conductive carbon source, an organic polymeric binder, and a water soluble polymer. The diluent consists essentially of water.
|FABRICATION METHOD OF METAL SUPPORTED SOLID OXIDE FUEL CELL - Provided is a fabrication method of a metal supported solid oxide fuel cell (SOFC) which comprises a metal supporter, and an anode layer, an electrolyte and a cathode layer stacked in turn on the metal supporter. The fabrication method includes forming the anode layer and the electrolyte on the metal supporter; forming the green cathode layer by coating on the electrolyte a cathode slurry containing a cathode material; and in-situ sintering the green cathode layer by a normal operation of the metal supported SOFC.
|METHOD FOR MANUFACTURING ALL SOLID ELECTRODE HAVING SOLID ELECTROLYTE CONCENTRATION GRADIENT - An all solid electrode structure having a solid electrolyte concentration gradient is provided and a method of improving an output performance is provided with improved ion diffusion and obtaining a high capacity battery, by disposing an anode or cathode electrode having a substantially continuous concentration gradient to have a greater solid electrolyte ratio as being closer to a solid electrolyte interface and have a greater active material ratio as being close to a current collector interface. The active material/solid electrolyte ratio of anode and cathode active material layers has a concentration gradient by a single process using an aerosol deposition method.
|METHOD OF MANUFACTURING FUEL CELL BASED POWER GENERATOR - A method includes assembling a top portion of a proton exchange membrane fuel cell based power generator that includes an anode cover, fuel cell, top portion of a valve assembly and fuel container cover. A bottom portion of the power generator that includes a fuel container with fuel, an opening for the top portion of the valve assembly, and a diaphragm portion of the valve assembly is also assembled. The top portion of the power generator is then attached to the bottom portion such that the bottom portion is a cathode of the power generator.
|CATHODE FOR BATTERY - Cathodes that include an active cathode material and a binder are described. The binder includes a first polymeric material and a second material.
|HIGH ENERGY CELL FUSIBLE LINK - A means and method for rendering high energy density cells safe in compliance with transportation requirements, with the incorporation of a cell fusible terminal which is added on or incorporated within the cell terminals to prevent over current and hazards from developing due to external short circuits. As a result, cells made in accordance with the method of the present invention can be shipped by common carriers even though they are classified as hazardous materials and can be readily used and normally discharged with such fusible link element thereon. The fusible terminal comprises a non conductive base element upon which is mounted a fusible link element and wherein the non-conductive or insulative base element comprises means for connection to a terminal of the cell or battery and to an external component.
|ELECTROCHEMICAL BATTERY AND METHOD FOR MAKING SAME - A method for making a battery is disclosed which comprises providing a plurality of Electrochemical Cell (EC) bundles; providing a current collecting terminal having first and second ends; electrically connecting the projections of the sheet like electrodes extending from one end a first EC bundle together via the first end of the current collecting terminal; electrically connecting the projections of the sheet like electrodes extending from one end of a second EC bundle together via the second end of the current collecting terminal such that the first and second EC bundles are mechanically and electrically connected together and form a string of at least two EC bundles; and folding the string of at least two EC bundles by bending the current collecting terminal connecting the at least two EC bundles together such that the first and second EC bundles are positioned in a side by side relationship.
|CATHODE ACTIVE MATERIALS AND METHOD OF MAKING THEREOF - A method of making a primary alkaline battery that includes a cathode including λ-MnO
|POROUS FILM HAVING REACTIVE POLYMER LAYER THEREON FOR USE IN BATTERY SEPARATOR, AND USE OF THE POROUS FILM - The present invention relates to a reactive polymer layer-supported porous film for battery separator, including: a porous film substrate; and a reactive polymer layer supported on the porous film substrate, the reactive polymer layer having a thickness of 2 μm or less and being obtained by a crosslinking reaction between a polyfunctional isocyanate and a crosslinkable polymer having both a reactive group capable of reacting with an isocyanate group and a cationically polymerizable functional group in the molecule thereof, in which the reactive polymer layer has a plurality of through-holes having an average pore diameter of 5 μm or less.
|METHOD FOR PRODUCING A SECONDARY CELL HAVING FLAT WOUND ELECTRODE BODY - A method for producing a secondary cell having a flat wound electrode body that inhibits the bending of the electrode board caused by charging and discharging and inhibits resulting swelling of the cell and deterioration of cycle characteristics is provided. The method has the steps of: winding, with a winding core, a positive electrode board, a negative electrode board, and a separator provided between the positive and negative electrode boards, and fixing the winding end, thereby preparing an approximately cylindrical electrode body; after the step of preparing the electrode body, deforming the electrode body into a shape with an approximately oval cross section by pressing the approximately cylindrical electrode body from a direction perpendicular to the winding axis, and rotating the deformed electrode body in the winding direction, thereby relaxing the winding state; and after the relaxation steps, pressing the electrode body into the flat wound electrode body.
|FUEL CELL MANUFACTURING METHOD, FUEL CELL SEPARATOR, AND TRANSPORTATION SYSTEM OF THE SAME - A positioning mark (
|Low cost electrical terminals manufactured from conductive loaded resin-based materials - Electrical terminals are formed of a conductive loaded resin-based material. The conductive loaded resin-based material comprises micron conductive powder(s), conductive fiber(s), or a combination of conductive powder and conductive fibers in a base resin host. The percentage by weight of the conductive powder(s), conductive fiber(s), or a combination thereof is between about 20% and 50% of the weight of the conductive loaded resin-based material. The micron conductive powders are formed from non-metals, such as carbon, graphite, that may also be metallic plated, or the like, or from metals such as stainless steel, nickel, copper, silver, that may also be metallic plated, or the like, or from a combination of non-metal, plated, or in combination with, metal powders. The micron conductor fibers preferably are of nickel plated carbon fiber, stainless steel fiber, copper fiber, silver fiber, aluminum fiber, or the like.
|BATTERY FABRICATION METHOD - Provided is a battery fabrication method capable of collecting foils by reforming a collector with ease and at a high quality. The battery fabrication method is to fabricate a battery (
|METHOD FOR MANUFACTURING LITHIUM SECONDARY BATTERY, METHOD FOR MANUFACTURING STACKED BATTERY, AND METHOD FOR MANUFACTURING COMPOSITE BODY - The whole of a conductive material layer is formed on a bonding surface of an outer film having flexibility and barrier properties to prepare a composite body in which the conductive material layer is integrated with the outer film. A current collector is located within an application region, and at least a part of an electrode terminal is located outside the application region. A positive electrode active material precursor layer, an electrolyte precursor layer, and a negative electrode active material precursor layer are added to the composite body with plane positions thereof aligned with that of the current collector. These precursor layers are subjected to a crosslinking process. The application regions are applied, and the outer films are bonded, to seal a cell. The crosslinking process may be omitted.
|SILICATE CATHODE FOR USE IN LITHIUM ION BATTERIES - Silicate cathodes for lithium ion batteries are provided along with methods of forming a silicate. Olivine structures are substituted with a lithium ion. The substituted Olivine structures are combined to form flake-like sheets having an orientation that facilitates passage of lithium ions. Related methods of forming a cathode are provided.
|METHOD AND APPARATUS FOR FUEL CELL STACK ASSEMBLY - A method and apparatus for assembling a fuel cell stack is disclosed, wherein the apparatus includes a plurality of dunnage cassettes adapted to cooperate with a plurality of containers, a fixture, and an assembly device to simultaneously assemble a plurality of membrane electrode assemblies together with a plurality of bipolar plates.
|Method of manufacturing lithium secondary battery - A method of manufacturing a lithium secondary battery, the method includes the operations of injecting a lithium salt; arranging an electrode assembly comprising a positive electrode, a separator, and a negative electrode; and injecting a solvent excluding the lithium salt.
|METHOD FOR PRODUCING AN ENERGY CELL AND APPARATUS FOR CARRYING OUT SAME - A method for producing an energy cell, in particular an energy storage cell or battery, having the steps of: arranging a plurality of films of the energy cell at a processing location, and cutting the plurality of films in one operation, wherein the cutting of the films is carried out by a laser beam, and wherein the laser beam is guided in a liquid. Also an apparatus for producing an energy cell.
|ALL-SOLID BATTERY AND METHOD FOR MANUFACTURING THE SAME - An all-solid battery that at least includes a negative electrode layer containing a negative electrode active material and a sulfide solid electrolyte, and a negative electrode current collector containing a metal that is in contact with the negative electrode layer and can react with the sulfide solid electrolyte, in which a sulfur compound generated by a reaction of the metal contained in the negative electrode current collector and the sulfide solid electrolyte contained in the negative electrode layer is not present in a contact portion of the negative electrode layer and the negative electrode current collector.
|METHOD FOR PRODUCING AND APPARATUS FOR PRODUCING SECONDARY BATTERY - After a separator is brought into a tension-free state, a plurality of guide members are crossed in a horizontal direction between rows of the guide members to fold the separator or a superposed body zigzag. Positive electrode plates or negative electrode plates are inserted into the resulting furrows to produce a secondary battery.
|Method of forming a solid state cathode for high energy density secondary batteries - A method for making a solid state cathode comprises the following steps: forming an alkali free first solution comprising at least one transition metal and at least two ligands; spraying this solution onto a substrate that is heated to about 100 to 400° C. to form a first solid film containing the transition metal(s) on the substrate; forming a second solution comprising at least one alkali metal, at least one transition metal, and at least two ligands; spraying the second solution onto the first solid film on the substrate that is heated to about 100 to 400° C. to form a second solid film containing the alkali metal and at least one transition metal; and, heating to about 300 to 1000° C. in a selected atmosphere to react the first and second films to form a homogeneous cathode film. The cathode may be incorporated into a lithium or sodium ion battery.
|ELECTRODE WITH FEEDTHROUGH PIN FOR MINIATURE ELECTROCHEMICAL CELLS AND METHODS OF MAKING - Miniature electrodes and electrochemical cells are disclosed. Such electrodes are made from forming an electrode mixture onto a current collector and distal end of a feedthrough pin such that the current collector and distal end of the feedthrough pin is encapsulated. The methods and electrode assemblies disclosed herein allow such electrode assemblies to be made free from the step of directly attaching a formed electrode to a feedthrough pin and thus simplifying assembly and decreasing size.
|Plant and process for the electrochemical formation of lead-acid batteries - Plant for the electrochemical formation of lead-acid batteries, which comprises an external circuit (
|METHOD OF MANUFACTURING CURVED SECONDARY BATTERY - A method of manufacturing a curved secondary battery, the method including preparing a flat secondary battery such that the flat secondary battery includes an electrode assembly and a pouch accommodating the electrode assembly; primary shaping the secondary battery such that the primary shaping includes disposing the flat secondary battery in a first jig, and pressing the flat secondary battery to form a primarily-shaped secondary battery such that the primarily-shaped secondary battery has a first curvature radius; secondary shaping the secondary battery such that the secondary shaping includes disposing the primarily-shaped secondary battery in a second jig, and pressing the primarily-shaped secondary battery to form a secondarily-shaped secondary battery having a second curvature radius; and maintaining the secondarily-shaped secondary battery after forming thereof in the second jig for a predetermined time period.
|BATTERY AND RELATED METHOD - A battery is provided with a plurality of unit cells each having a tab, a bus bar connecting the tab of one of the plurality of unit cells and the tab of another one of the plurality of unit cells, and a plurality of welding points disposed on a center of gravity of an area, in which the bus bar and the tab are overlapped, or a vicinity thereof, and at least one position of line segments, radiately extending from the center of gravity, or a vicinity thereof, such that the bus bar and the tab are connected to one another at the plurality of welding points.
|METHOD FOR MANUFACTURING BATTERY TERMINAL PLATE - A method of manufacturing a battery terminal plate includes primarily pressing a single processing material corresponding to a volume body into a semi-product having an asymmetric shape through a press cutting unit; gripping the semi-product and feeding the semi-product to a first processing unit by a pickup unit; asymmetrically pressing the semi-product by a first punch to primarily forge the semi-product into a volume body part and a plate part; pressing the semi-product located in the first processing unit by a second punch to secondarily forge the semi-product while forming a detailed structure at the volume body part and the plate part; pressing the semi-product with a pressure stronger than that in the second forging step by a third punch to tertiary forge the semi-product; and punching the semi-product by a cutting/trimming unit to removing the pickup gripping member and cutting an outer peripheral portion into a final product.
|OUTER CASING OF NON-AQUEOUS ELECTROLYTE BATTERY AND PRODUCTION METHOD THEREFOR - An outer casing of a non-aqueous electrolyte battery is capable of being mass-produced as well as thin and resistant to damage. The outer casing
|DOPED SPINEL, METHOD FOR THE PRODUCTION THEREOF, THE USE THEREOF AND LITHIUM-ION BATTERY - A doped spinel comprising the formula:
|METHOD FOR MANUFACTURING SECONDARY BATTERY - A method for manufacturing a secondary battery determines the amount of the non-aqueous electrolyte to be injected into the bound cell case on the basis of an amount of air space in a positive electrode active material layer, a swelling rate of the positive electrode active material layer, an amount of air space in a negative electrode active material layer, a swelling rate of the negative electrode active material layer, an amount of air space in a separator sheet, a total surface area of an opposing surface of the positive electrode active material layer and the negative electrode active material layer, and a reference electrolyte amount per unit surface area, which is determined in accordance with a binding rate.
|METHOD FOR MANUFACTURING SECONDARY CELL AND SECONDARY CELL - The present invention provides a method for manufacturing a secondary cell, comprising the steps of: disposing two sheets of separators (
|METHOD FOR PRODUCING A LIQUID ELECTROLYTE BATTERY - The invention relates to a method for making an electrolytic battery which is preferably used in movable facilities such as cars, boats and planes. The method comprises the following steps: inserting of intermixing plates
|METHOD FOR PRODUCING SEPARATOR FOR NONAQUEOUS ELECTROLYTE ELECTRICITY STORAGE DEVICES AND METHOD FOR PRODUCING NONAQUEOUS ELECTROLYTE ELECTRICITY STOREAGE DEVICE - Provided is a separator for nonaqueous electrolyte electricity storage devices that includes an improved porous epoxy resin membrane. At least one compound selected from a carboxylic acid, a carboxylic acid salt, a carboxylic acid anhydride, and a carboxylic acid halide, is brought into contact with a porous epoxy resin membrane, and thus hydroxyl groups contained in the porous membrane are reacted with the compound to produce carboxylic acid ester bonds. As a result of this treatment, the amount of active hydroxyl groups present in the porous epoxy resin membrane is reduced, and the porous epoxy resin membrane becomes suitable as a separator for nonaqueous electrolyte electricity storage devices. An epoxy resin sheet yet to be made porous may be subjected to reaction with the compound.
|NEGATIVE GRID FOR BATTERY - A method for producing a negative grid for a battery which includes providing a strip of battery grid material and performing a punching operation on the battery grid material to remove material and form a grid. The punching operation produces a negative battery grid having a plurality of grid wires bounded by a frame. The battery grid includes a top frame member. A first side frame member is coupled to the top frame member at a first end thereof. A second side frame member is coupled to the top frame member at a second end thereof. A bottom frame member is spaced apart from the top frame member and coupled to the first side frame member and the second side frame member. The negative grid does not include exposed wire ends that may puncture a polymeric separator when the negative grid is provided within the separator.
|BATTERY COVER FOR A HIGH VOLTAGE AUTOMOTIVE BATTERY - A cover for a battery module having a plurality of battery cells arranged in a stacked configuration includes a non-conductive main body having a plurality of spaced apart recessed regions formed therein and a plurality of electrically conductive connectors, each of the connectors disposed in one of the recessed regions and coupled to the main body.
|CATHODE FOR LITHIUM BATTERY WITH EXCELENT OUTPUT PROPERTIES, METHOD OF MANUFACTURING THE CATHODE AND LITHIUM BATTERY USING THE SAME - The present disclosure provides a cathode for lithium batteries with a structure suited to high output properties, a method of manufacturing the same, and a lithium battery using the same. The cathode has a stack structure including a first cathode member, a separating member and a second cathode member stacked in sequence to have a pipe shape or a folded shape with spaced ends, wherein each of the first and second cathode members includes a current collector and a cathode active material formed on either side of the current collector.
|METHOD OF MAKING AND USING COMPOSITION AND ENERGY STORAGE DEVICE - A method is provided that includes forming brass from zinc powder and copper powder in the presence of a sodium electrolyte. In one aspect, an electrochemical cell is loaded with copper and zinc, the electrochemical cell is heated, and at least one charge/discharge cycle of the electrochemical cell is performed. Alpha brass is converted to gamma brass in presence of zinc and sodium. Methods of producing and operating an energy storage device are also provided.
|CONTINUOUS PRISMATIC CELL STACKING SYSTEM AND METHOD - A continuous prismatic cell stacking system and method is disclosed. The system comprises: (a) devices on the system to supply a separator layer, a cathode layer, and an anode layer; and (b) one cutter on the frame for cathode layer and anode layer; and (c) conveyer system to convey the stacked cell. The conveyer system comprises a rotary disc and a transfer belt. The said rotary disc is round shape, or multi-equilateral shape, or track & field shape.
|METHOD FOR MANUFACTURING A VALUABLE-METAL SULFURIC-ACID SOLUTION FROM A WASTE BATTERY, AND METHOD FOR MANUFACTURING A POSITIVE ELECTRODE ACTIVE MATERIAL - The present invention relates to a method for manufacturing a valuable-metal sulfuric-acid solution from a waste battery, and to a method for manufacturing a positive electrode active material. The method for manufacturing the valuable-metal sulfuric-acid solution includes: a step of obtaining valuable-metal powder containing lithium, nickel, cobalt, and manganese from waste batteries; a step of acid-leaching the valuable-metal powder under a reducing atmosphere in order to obtain a leaching solution; and a step of separating the lithium from the leaching solution so as to obtain a sulfuric-acid solution containing the nickel, cobalt, and manganese.
|METHOD FOR FABRICATING FUEL CELL AND ANODE CATALYST LAYER THEREOF - The present invention relates to a method for fabricating a fuel cell including a step of producing a unit cell, the step of producing a unit cell including a step of producing at least one unit cell including an anode including an anode catalyst layer containing an anode catalyst, a cathode including a cathode catalyst layer containing a cathode catalyst, and an electrolyte membrane interposed between the anode and the cathode, in which the step of producing a unit cell includes a step (i) of immersing the anode catalyst in an acid-containing solution under the presence of a proton-conductive ion-exchange resin, the proton concentration in the acid-containing solution being 0.1 mol/L or more and 2 mol/L or less.
|LITHIUM SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF - An object is to improve the cycle performance by improving the reactivity between lithium and a negative electrode active material in the case where an alloy-based material such as silicon is used as the negative electrode active material. A method of manufacturing a lithium secondary battery including a positive electrode including a positive electrode active material into/from which lithium can be inserted/extracted, a negative electrode including a negative electrode active material into/from which lithium can be inserted/extracted, and an electrolyte solution is provided. The method includes the steps of electrochemically inserting lithium into the negative electrode with use of a counter electrode before the lithium secondary battery is assembled, electrochemically extracting part of the lithium inserted into the negative electrode after the insertion, and assembling the lithium secondary after the extraction.
|NANOSTRUCTURED MATERIALS FOR ELECTROCHEMICAL CONVERSION REACTIONS - The disclosure is related to battery systems. More specifically, embodiments of the disclosure provide a nanostructured conversion material for use as the active material in battery cathodes. In an implementation, a nanostructured conversion material is a glassy material and includes a metal material, one or more oxidizing species, and a reducing cation species mixed at a scale of less than 1 nm. The glassy conversion material is substantially homogeneous within a volume of 1000 nm
|METHOD OF MAKING A CATHODE - A battery cathode is made by mixing electrochemically active cathode material, graphite, water and an aqueous based binder to provide a mixture. The mixture is extruded continuously into a cathode. Water is then removed from the cathode. The cathode is cut into individual pieces.
|ROTOLINEAR CLAMPING CYLINDER - The invention relates to a clamping cylinder (
|STATIONARY SEMI-SOLID BATTERY MODULE AND METHOD OF MANUFACTURE - A method of manufacturing an electrochemical cell includes transferring an anode semi-solid suspension to an anode compartment defined at least in part by an anode current collector and an separator spaced apart from the anode collector. The method also includes transferring a cathode semi-solid suspension to a cathode compartment defined at least in part by a cathode current collector and the separator spaced apart from the cathode collector. The transferring of the anode semi-solid suspension to the anode compartment and the cathode semi-solid to the cathode compartment is such that a difference between a minimum distance and a maximum distance between the anode current collector and the separator is maintained within a predetermined tolerance. The method includes sealing the anode compartment and the cathode compartment.
|Battery - Ozonated manganese dioxide is prepared by an ozonation process and utilized as a cathode active material. An ozone containing gas stream contacts manganese dioxide and produces ozonated manganese dioxide with high efficiency. After preparation, ozonated manganese dioxide is stored for a limited time at a low temperature and incorporated into a cathode active material for alkaline batteries.
|NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - The method for producing a non-aqueous electrolyte secondary battery of the invention includes: (a) a step of preparing an electrode mixture slurry, (b) an ionization step of oxidizing and ionizing a metal impurity present in the electrode mixture slurry, and (c) a step of producing an electrode by using the electrode mixture slurry after the ionization step. In the invention, when the electrode mixture is in the form of a slurry, the metal impurity contained in the electrode mixture is ionized to minimize the amount of the impurity. Therefore, the invention can provide a highly reliable non-aqueous electrolyte secondary battery while minimizing a decrease in production yield by the metal impurity.
|ANODIZED METALLIC BATTERY SEPARATOR HAVING THROUGH-PORES - A battery includes an anode and a cathode. An electrolyte material is disposed between the anode and the cathode. A separator is disposed between the anode and the cathode. The separator comprises an anodized metal oxide layer having substantially straight and parallel through-pores, wherein the anodized metal oxide of the porous anodized metal oxide layer is selected from the group consisting of aluminum oxide, titanium oxide, zirconium oxide, niobium oxide, tungsten oxide, tantalum oxide, and hafnium oxide.
|WORKPIECE-POSITIONING DEVICE AND WORKPIECE MANUFACTURING METHOD - A workpiece-positioning device includes a workpiece holder of holding a workpiece, a workpiece holder up/down mechanism of moving the workpiece holder up and down, and a free pallet movement mechanism of freely moving a pallet parallel to a reference plane to shift the pallet to a position where the workpiece held by the workpiece holder is lowered so that a positioning pin of the pallet is inserted into a positioning hole made in the workpiece.
|METHODS OF MAKING METAL-DOPED NICKEL OXIDE ACTIVE MATERIALS - Methods of making high-energy cathode active materials for primary alkaline batteries are described. The primary batteries include a cathode having an alkali-deficient nickel(IV)-containing oxide including one or more metals such as Co, Mg, Al, Ca, Y, Mn, and/or non-metals such as B, Si, Ge or a combination of metal and/or non-metal atoms as dopants partially substituted for Ni and/or Li in the crystal lattice; an anode; a separator between the cathode and the anode; and an alkaline electrolyte solution.
|COLD-ROLLED STEEL SHEET AND PROCESS FOR PRODUCING THE SAME - A cold-rolled steel sheet that is suitable for battery cases and has low anisotropy is composed of, by mass %, C: ≦0.0030%, Si: ≦0.02%, Mn: 0.15 to 0.19%, P: ≦0.020%, S: ≦0.015%, N: ≦0.0040%, Al: 0.020 to 0.070%, Nb: 1.00≦Nb/C (atomic equivalent ratio)≦5.0, B: 1 ppm≦B-(11/14)N≦15 ppm (in the expression, B and N denote the contents of the respective elements), and the balance: being Fe and inevitable impurities, and has a planar anisotropy Δr of the r-value in the range of −0.10≦Δr≦0.10. In a process for producing the steel sheet, the cold rolling is performed at a rolling ratio of 70 to 87%, and then annealing is performed on a continuous annealing line at an annealing temperature of from the recrystallization temperature to 830° C.
|METHOD OF MAKING NON-AQUEOUS ELECTROCHEMICAL CELL - A method of making a lithium electrochemical cell includes treating the cathode active material with an agent that includes lithium but not sodium. A cathode including the cathode active material, an anode, a separator, and an electrolyte are assembled in a housing to provide a cell containing less than 1500 ppm by weight of sodium.
|SEMI-AUTOMATIC METHOD FOR MANUFACTURING AN ELECTROCHEMICAL LI-ION BATTERY - A semi-automatic method for making a Li-ion electrochemical accumulator according to which a continuous electrolytic separator strip is automatically wound on two-sided electrodes manually and alternately stacked according to their polarity. By the method, it is not necessary to assemble or manually cut out each electrolytic separator inserted between two adjacent electrodes in the stack and of opposite polarity.
|DEVICE FOR PRODUCING BAGGED ELECTRODE AND METHOD FOR PRODUCING BAGGED ELECTRODE - A device for producing a packaged electrode includes: a conveyance unit configured to sequentially overlay the electrode and the pair of separators from a front end side in a conveying direction while conveying the electrode and the pair of separators; a first joining chip configured to join lateral edges of the pair of separators together; at least one second joining chip positioned downstream of the first joining chip in the conveying direction and configured to join the lateral edges of the pair of separators together. Front ends of the lateral edges of the pair of separators being sequentially overlaid while being conveyed by the conveyance unit are joined together by the first joining chip positioned upstream before the front ends are conveyed to the second joining chip positioned downstream.
|METHOD FOR MAKING LITHIUM ION BATTERY - A method for making lithium ion battery is provided. A cathode material layer and an anode material layer are provided. A cathode current collector is formed on a surface of the cathode material layer to obtain a cathode electrode. The cathode current collector includes a graphene layer and a carbon nanotube layer stacked with the graphene layer. An anode current collector is formed on a surface of the anode material layer to obtain an anode electrode. A separator is applied between the cathode electrode and the anode electrode thereby forming a battery cell. At least one battery cell is encapsulated in an external encapsulating shell. An electrolyte solution is injected into the external encapsulating shell.
|Battery Separator - Resinous fibers of nanometer to micrometer width dimensions are drawn from a multi-component system by a melt extrusion process. The process includes a step of combining a fiber resin with a water-soluble carrier resin to form a resinous mixture. The resinous mixture is extruded to form an extruded resinous mixture, the extruded resinous mixture having strands of the fiber resin with the carrier resin. The extruded resinous mixture is then contacted with water to separate the strands of the fiber resin from the carrier resin. A fibrous sheet is then formed from the strands of fiber resin. The fibrous sheets are useful in filtration, as battery separators in Li ion batteries and as diffusion layers in fuel cells.
|METHOD OF BATTERY PRODUCTION - A battery production method according to the invention includes a winding step of winding an electrode assembly around a winding core and a flattening step of pressing the electrode assembly wound in the winding step, in a direction orthogonal to an axial direction thereof to form a flattened shape in which the wound electrode assembly is flattened in a direction that is orthogonal to the pressing direction and the axial direction, wherein a rod-shaped spacer is inserted, in parallel to the axial direction, into the electrode assembly wound during the course of winding the electrode assembly around the winding core in the winding step, and wherein the spacer is pulled out between the winding step and the flattening step.
|ELECTROLYZER APPARATUS AND METHOD OF MAKING IT - An apparatus for the electrolytic splitting of water into hydrogen and oxygen gases is disclosed. The apparatus comprises: (i) a first hemi-enclosure; (ii) a second hemi-enclosure; (iii) a diaphragm electrode array positioned between the first hemi-enclosure and the second hemi-enclosure comprising: (a) a diaphragm, that passes ions and impedes the passage of gases, comprising a first side and a second opposed side; (b) a first plurality of electrodes in a first vicinity of the first side of the diaphragm; and (c) a second plurality of electrodes in a second vicinity of the second opposed side of the diaphragm; (iv) a fastener, for leak-tight fastening of the first hemi-enclosure, the diaphragm electrode array, and the second hemi-enclosure, whereby a leak-tight enclosure is formed; (v) contacts, for electrically powering the first and second pluralities of electrodes, and; (vi) pathways, configured to remove hydrogen and oxygen gases from the enclosure.
|METHOD FOR PRODUCING SEPARATOR FOR NONAQUEOUS ELECTROLYTE ELECTRICITY STORAGE DEVICES AND METHOD FOR PRODUCING NONAQUEOUS ELECTROLYTE ELECTRICITY STORAGE DEVICE - The present invention provides a method for producing a separator for nonaqueous electrolyte electricity storage devices. The method allows: avoidance of use of a solvent that places a large load on the environment; and relatively easy control of parameters such as the porosity and the pore diameter. The production method of the present invention includes the steps of: preparing an epoxy resin composition containing an epoxy resin, a curing agent, and a porogen; forming a cured product of the epoxy resin composition into a sheet shape or curing a sheet-shaped formed body of the epoxy resin composition, so as to obtain an epoxy resin sheet; removing the porogen from the epoxy resin sheet by means of a halogen-free solvent so as to form a porous epoxy resin membrane; and drying the porous epoxy resin membrane by heat-roll drying.
|METHOD FOR PRODUCING SULFIDE SOLID ELECTROLYTE MATERIAL AND METHOD FOR PRODUCING LITHIUM SOLID STATE BATTERY - A method for producing a sulfide solid electrolyte material having a small amount of hydrogen sulfide generation and a high Li ion conductivity. To achieve the above, a method for producing a sulfide solid electrolyte material is provided, including steps of: a providing step for providing a crystallized sulfide solid electrolyte material prepared by using a raw material composition containing Li
|STACKING APPARATUS AND STACKING METHOD - The stacking apparatus of the present invention includes a separator conveyance unit to convey a separator of predetermined shape in a held state, an electrode conveyance unit to convey a positive electrode of predetermined shape, and a control unit to synchronize the conveying position and conveyance speed of the separator conveyance unit with those of the electrode conveyance unit so that the separator and positive electrode overlap each other at a predetermined position. The stacking apparatus conveys the separator and positive electrode and transfers the separator onto the electrode from a downstream side of the conveying direction while gradually removing the separator from the separator conveyance unit, thereby stacking the separator on the electrode.
|JOINING DEVICE AND JOINING METHOD - A joining device includes a pair of cylindrical rotors
|DIFFUSION LAYER FOR AN ELECTROCHEMICAL DEVICE AND METHOD FOR PRODUCING SUCH A DIFFUSION LAYER - A method for producing a diffusion layer of an electrochemical device, including: superimposition of multiple unidirectional webs of carbon filaments, filaments of each web positioned parallel with, and next to, one another; needle punching of the webs, breaking a proportion of the filaments such that broken portions of the filaments are tangled with other filaments of the webs; and cutting a proportion of the multiple unidirectional webs, the carbon filaments forming one electrically conducting outer surface of the diffusion layer. The needle punching is accomplished all the way through the multiple unidirectional webs, and/or through two principal opposite faces of the multiple unidirectional webs, and/or with an impact density against the multiple unidirectional webs of between approximately 100 and 300 impacts/cm
|Stacked Cell Manufacturing Method and Apparatus Using the Same - The stacked cell manufacturing method includes the steps of executing zigzag-folding of a band-like separator by the intermediary of a zigzag-folding mechanism, alternately feeding a positive-plate and a negative-plate onto the separator as folded back every time the separator is folded back by the zigzag-folding. A positive-plate transfer head and a negative-plate transfer head are set so as to alternately undergo a linearly reciprocating transfer in a horizontal direction at least on the table, the direction of a horizontal and reciprocating transfer made by the positive-plate transfer head and the negative-plate transfer head is set to coincide with a folding-back direction of the zigzag-folding of the separator, and a force caused by the horizontal and reciprocating transfer alternately made by each of these transfer heads is imparted to the separator guided onto the table, thereby executing the zigzag-folding while the separator is drawn onto the table.
|PRESS ASSEMBLY AND METHOD FOR BENDING ELECTRICAL TERMINALS OF BATTERY CELLS - A press assembly and a method for bending electrical terminals of battery cells are provided. The assembly includes a supporting member that holds a body portion of a cell thereon. The cell has first and second electrical terminals. The assembly further includes a lower plate having first and second dies that hold the first and second electrical terminals, thereon. The assembly further includes an upper plate having third and fourth dies, and guide rods disposed between the lower plate and the upper plate. The upper plate moves vertically on the guide rods relative to the lower plate. The assembly further includes an actuation assembly moving the upper plate toward the lower plate such that the first electrical terminal is bent into a first predetermined shape between the first and third dies, and the second electrical terminal is bent into a second predetermined shape between the second and fourth dies.
|BUS BAR ATTACHMENT DEVICE AND BUS BAR ATTACHMENT METHOD - A bus bar attachment device includes a bus bar placing part for placing a bus bar onto a pallet, and a pressing part for causing first and second adjacent surfaces in the bus bar placed by the bus bar supply part to press against first and second adjacent wall surfaces in a bus bar positioning part of the pallet. The bus bar is placed by the bus bar supply part in a position where the first and second surfaces face the first and second wall surfaces in the bus bar positioning part, and the first and second surfaces are pressed the pressing part against the first and second wall surfaces in the bus bar positioning part to set the position of the bus bar relative to a battery.
|PRIMARY ALKALINE BATTERY - A primary battery includes a cathode having a non-stoichiometric metal oxide including transition metals Ni, Mn, Co, or a combination of metal atoms, an alkali metal, and hydrogen; an anode; a separator between the cathode and the anode; and an alkaline electrolyte.
|METHOD FOR MANUFACTURING A FLAT-PLATE BATTERY - The present invention relates to a method for manufacturing a flat-plate battery. The method includes step S
|MANUFACTURING METHOD OF A BATTERY - A manufacturing method for a battery is provided in the present invention. The manufacturing method includes the steps of: S
|EQUIPPING MOTOR VEHICLE BATTERY HOUSINGS WITH SETS OF ELECTRODE PLATES - The invention relates to an equipping station (
|CANAL HEARING DEVICES AND BATTERIES FOR USE WITH SAME - Hearing devices configured to fit within the bony portion of the ear canal and batteries that may be used with same.
|Apparatus and Method for the Production of Electric Energy Storage Devices - Production apparatus and method for producing devices for storing electric energy are disclosed, wherein stacks of flat cathodes r and anodes that face one another alternately with the interposition of a separator are produced, and in which the separator is formed by a single continuous strip folded several times in a single folding direction.
|Process for the Preparation of an Electrode from a Porous Material, Electrode Thus Obtained and Corresponding Electrochemical System - Process for the preparation of electrodes from a porous material making it possible to obtain electrodes that are useful in electrochemical systems and that have at least one of the following properties: a high capacity in mAh/gram, a high capacity in mAh/liter, a good capacity for cycling, a low rate of self discharge, and a good environmental tolerance.
|CATHODES AND CATHODE MIXTURES INCLUDING OZONATED MANGANESE DIOXIDE - Ozonated manganese dioxide is prepared by an ozonation process and utilized as a cathode active material. An ozone containing gas stream contacts manganese dioxide and produces ozonated manganese dioxide with high efficiency. After preparation, ozonated manganese dioxide is stored for a limited time at a low temperature and incorporated into a cathode active material for alkaline batteries.
|Single Punch Method of Making Battery Plates for Lead-Acid Batteries - A method of making battery plates for lead-acid batteries includes providing a strip of material comprising lead; and punching material out of the strip to form a grid comprising wires having a non-rectangular cross-sectional shape by utilizing a die set comprising a plurality of male die components and female die components, wherein each of the male die components comprises a first portion having a first cross-sectional shape and a second portion having a second-cross sectional shape. A single punch of the material creates a hole in the material and also forms the periphery of the hole.
|CHEMICAL PROTECTION OF METAL SURFACE - An electrochemical cell includes an anode having a metal material having an oxygen containing layer. The electrochemical cell also includes a cathode and an electrolyte. The anode includes a protective layer formed by reacting a D or P block precursor with the oxygen containing layer.
|PROCESS FOR PRODUCING CATHODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY - To provide a process for producing a cathode active material for a lithium ion secondary battery which can improve the initial charge and discharge efficiency (initial efficiency) and the cycle retention of a lithium ion secondary battery.
|METHOD FOR IMPLEMENTING A SYSTEM FOR THE STORAGE OF ELECTRIC ENERGY FOR A VEHICLE WITH ELECTRIC PROPULSION AND HAVING CYLINDRICAL CHEMICAL BATTERIES ARRANGED IN A PLASTIC SUPPORT MATRIX - A method for implementing a system for the storage of electric energy for a vehicle with electric propulsion; the storage system is provided with a pack of chemical batteries, which are connected to each other in series and/or in parallel and comprise respective electrochemical cells; each chemical battery has a cylindrical shape having a central symmetry axis; and a support matrix made of plastic material is provided, inside of which the chemical batteries are arranged.
|Manufacturing method of a battery - An exemplary manufacturing method for a battery is provided in the present invention. The manufacturing method includes step S
|METHOD OF MANUFACTURING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - An organic acid included in a nonaqueous electrolyte solution of a secondary battery is reduced. During preparation of a film-covered battery
|METHOD OF PRODUCING AN ELECTRODE FOR A LITHIUM SECONDARY BATTERY, AND METHOD OF PRODUCING A LITHIUM SECONDARY BATTERY - A method of producing an active material for a lithium secondary battery, by which impurities causing problems in synthesizing an active material for a lithium secondary battery, including a lithium transition metal oxyanion compound are removed efficiently and enhancement of an energy density is realized, is provided. By cleaning the active material for a lithium secondary battery, including a lithium transition metal oxyanion compound, with a pH buffer solution, for example, it is possible to efficiently remove just only impurities such as Li
|METHOD FOR PRODUCING ELECTRODE AND METHOD FOR PRODUCING BATTERY - According to one embodiment, a method for producing an electrode, includes applying tensile force. The electrode includes a strip current collector, a current collector exposed portion, and an active material-containing layer. In the applying tensile force, arranging a strip electrode plate on a roller including a step portion and a recessed portion such that the current collector exposed portion is positioned on the step portion and the active material-containing layer is positioned on the recessed portion, and then applying tensile force to the strip electrode plate in a longitudinal direction of the strip electrode plate.
|PREPARATION METHOD OF LITHIUM RECHARGEABLE BATTERY COMPOSITE ANODE FROM SILICON KERF - The disclosure generally describes a method to prepare a composite anode for a lithium rechargeable battery comprising silicon particles from silicon kerf. Said silicon particles are mechanically resized, separated, cleaned, mixed with carbonaceous materials and polymer binder, and formed into an anode for a lithium rechargeable battery. The lithium rechargeable battery featuring such an anode exhibits an exceptionally high specific capacity, an excellent reversible capacity, and a long cycle life.
|SYSTEM AND METHOD FOR PRODUCINGBATTERY TERMINALS - Disclosed is a method and apparatus for manufacturing terminals for automotive batteries having a pressing unit, a punching unit, and a drilling unit in the same apparatus.
|METHOD FOR PRODUCING A LITHIUM OR SODIUM BATTERY - The invention relates to a method for producing a battery using A
|METHOD FOR PRODUCING SEPARATOR FOR NONAQUEOUS ELECTROLYTE ELECTRICITY STORAGE DEVICES AND METHOD FOR PRODUCING NONAQUEOUS ELECTROLYTE ELECTRICITY STOREAGE DEVICE - The present invention provides a method for producing a separator for nonaqueous electrolyte electricity storage devices. The method allows: avoidance of use of a solvent that places a large load on the environment; and relatively easy control of parameters such as the porosity and the pore diameter. The present invention includes the steps of: preparing an epoxy resin composition containing an epoxy resin, a curing agent, and a porogen; forming a cured product of the epoxy resin composition into a sheet shape or curing a sheet-shaped formed body of the epoxy resin composition, so as to obtain an epoxy resin sheet; removing the porogen from the epoxy resin sheet by means of a halogen-free solvent so as to form a porous epoxy resin membrane; and subjecting at least one surface of the porous epoxy resin membrane to atmospheric-pressure plasma treatment so as to remove a surface portion of the porous epoxy resin membrane.
|METHOD FOR PACKAGING A THIN FILM BATTERY AND APPARATUS FOR MANUFACTURING A THIN FILM BATTERY PACKAGE - The present invention relates to a method for packaging a thin film battery. The method for packaging the thin film battery comprises: a first step of measuring a stacking depth of a package housing stacking space; a second step of correcting a stacking position of each unit battery in order to equalize the average depth formed by stacking each unit battery and the stacking depth of the package housing stacking space, and then sequentially stacking the unit batteries at the corrected stacking positions thereof in the stacking space; and a third step of thermosetting the unit batteries that have finished being stacked. The present invention also relates to an apparatus for a thin film battery package.
|METHOD FOR PRODUCING AND APPARATUS FOR PRODUCING SECONDARY BATTERY - A production apparatus is equipped with a supply unit which has a cassette member
|METHOD OF REBUILDING A RECHARGEABLE BATTERY - A rechargeable power tool battery is rebuilt by replacing its spent cells with an array of replacement cells in which connections are made by conductive connectors, ends of which are clamped by bent-over arms of star-shaped malleable metal grips, the hubs of which are spot welded to cell terminals by the replacement cell supplier. Replacement cells can be supplied in pairs with the positive terminal of one cell of the pair permanently connected to the negative terminal of the other cell of the pair and with the other positive and negative terminals each provided with a spot-welded star-shaped grip.
|MANUFACTURING METHOD OF ELECTRODE FOR BATTERY - This invention relates to a method of manufacturing an electrode for a secondary battery, which enables cost savings and the manufacture of products having various sizes and shapes. The method includes (A) preparing an electrode plate, (B) cutting the electrode plate to conform to the width of the electrode, thus providing a unit electrode plate, and (C) removing at least one of the corner regions of the unit electrode plate.
|WINDER FOR ELECTRODE ASSEMBLY OF RECHARGEABLE BATTERY AND ELECTRODE ASSEMBLY MANUFACTURING METHOD USING THE SAME - An exemplary embodiment provides a winder for an electrode assembly of a rechargeable battery capable of improving productivity by shortening a winding cycle. A winder for an electrode assembly of a rechargeable battery according to an exemplary embodiment includes: a nip roll catching and feeding a positive plate and a negative plate, and a separator; a rotor disposed below the nip roll to rotate; and a plurality of winding cores arranged in the rotor at a regular interval in a rotation direction of the rotor to rotate and move forward or backward from the rotor, wherein the center of the nip roll, the center of any one winding core among the plurality of winding cores, and one surface of an electrode assembly of another winding core which is winding-completed form a straight line.
|BATTERY SYSTEM FOR ELECTRICAL DEVICES - A method for loading electrical vehicles with batteries may be provided. The battery system may comprise a battery container with an inlet channel for a serially inserting multiple batteries with substantially identical shape into the battery container, and a battery holder with a holding mechanism to selectively hold the inserted battery. For each of the battery holders, electrical connectors for connecting the inserted batteries may be available. An ejection may be possible via an outlet channel and an ejection mechanism.
|Method of forming a solid state cathode for high energy density secondary batteries - A method for making a solid state cathode comprises the following steps: forming an alkali-free first solution comprising at least one transition metal and at least two ligands; spraying this solution onto a substrate that is heated to about 100 to 400° C. to form a first solid film containing the transition metal(s) on the substrate; forming a second solution comprising at least one alkali metal, at least one transition metal, and at least two ligands; spraying the second solution onto the first solid film on the substrate that is heated to about 100 to 400° C. to form a second solid film containing the alkali metal and at least one transition metal; and, heating to about 300 to 1000° C. in a selected atmosphere to react the first and second films to form a homogeneous cathode film. The cathode may be incorporated into a lithium or sodium ion battery.
|ENERGY STORAGE DEVICE AND MANUFACTURING METHOD THEREOF - An energy storage device whose discharge capacity can be improved and a method for manufacturing the energy storage device are provided. A method for manufacturing an energy storage device, in which a metal element is dispersed over a current collector, and a crystalline silicon layer including a whisker is formed as an active material layer over the surface of the current collector on which the metal element is dispersed by low pressure chemical vapor deposition (LPCVD) in which heating is performed using a deposition gas containing silicon. Having whiskers in the active material layer as described above, the surface area of the active material layer is increased; thus, the discharge capacity of the energy storage device can be increased.
|METHOD FOR PRODUCING A LIQUID ELECTROLYTE BATTERY - The invention relates to a method for making an electrolytic battery which is preferably used in movable facilities such as cars, boats and planes. The method comprises the following steps: Inserting of intermixing plates
|Battery and Method for Manufacturing Battery - A battery includes a power generation element, a case member having an accommodation recess for accommodating the power generation element and including first and second sides, and an opening closure member for closing the accommodation recess. A case inside part of the opening closure member contacts a first center edge of a first edge of the first side to prevent warping deformation of the first edge toward the accommodation recess, and is spaced from a first-first end and a first-second end. In addition, the opening closure member contacts a second center edge of a second edge of the second side to prevent warping deformation of the second edge toward the accommodation recess, and is spaced from a second-first end and a second-second end. The case member and the opening closure member are secured to each other at a welded part around their entire periphery.
|METHOD FOR MANUFACTURING SECONDARY BATTERY SEPARATOR AND METHOD FOR MANUFACTURING LITHIUM SECONDARY BATTERY - A method for manufacturing, a secondary battery separator including a porous resin film in which pores have three-dimensionally ordered structure and are in mutual communication via through-holes. The method includes: uniformly dispersing spherical microparticles having narrow particle size distribution in a dispersion medium to prepare a microparticles-dispersed slurry; drying slurry to obtain a spherical microparticles-dispersed film; heat-treating the film to form a microparticles-resin film in which the microparticles are regularly arrayed in three-dimensions in a resin matrix; and contacting the microparticles-resin film with an organic acid, water, an alkaline solution or an inorganic acid other than hydrofluoric acid to dissolve and remove the microparticles, or heating the microparticles-resin film to remove the microparticles, to form pores which are in mutual communication and regularly arrayed in the resin matrix. The medium has a resin precursor for the resin matrix and surfaces of the microparticles are inactive against the medium.
|METHOD FOR FORMING LOW-RESISTANCE ELECTRIC CONNECTION POINTS FOR A BATTERY CELL WITH TWO EXTERNAL NICKEL ELECTRODE TERMINALS - A method for forming low-resistance electric connection points for a battery cell with two external nickel electrode terminals, when the graphite alloy connecting member is brought into contact with the external nickel terminals of the battery cell, graphite will be separated out of the graphite alloy connecting member, and the nickel will be separated out of the external nickel terminals of the battery cell, and then the graphite and the nickel are dissolved into each other, so that the graphite alloy connecting member and the external nickel electrode terminals of the battery cell are melted and seamlessly connected. Hence, the resistance of the battery cell is reduced to the least, while the discharge and conductivity performance of the battery cell are improved.
|METHOD FOR PREPARING SECONDARY BATTERY - Provided is a secondary battery inner cell stack stacking apparatus and method that prepare a secondary battery inner cell stack of a Z-folding stacking format. To be specific, provided is a secondary battery inner cell stack stacking apparatus and method according to a method for performing multiple insertions on a plurality of anode plates and cathode plates at once in both sides after folding a separator in a zigzag shape in advance.
|METHOD OF MANUFACTURING LITHIUM ION STORAGE DEVICE - There is provided a method of manufacturing a lithium ion storage device. A lithium ion storage device produced by the method includes a positive electrode having a positive electrode active material that contains a lithium-containing compound, and a negative electrode having an alloy-based negative electrode active material. A charge potential in a first cycle is higher than charge potentials in second and subsequent cycles.
|DEVICE AND METHOD FOR PROCESSING BATTERY PLATES AND ARRANGING THEM IN WET OR AGM BATTERY CASES FOR CARS OR TRUCKS - A device for processing battery plates having a centrally arranged processing turntable with a lifting and/or rotating device at the individual processing stations, transporting devices for the battery plates, battery plate packs and finished battery cases. Stationary gripping robots with up to six axes of movement and specially designed grippers are arranged at the processing turntable as a transporting device for feeding the battery plates to be processed and removing the finished battery plates to and from the processing turntable, forming battery plate sets for the battery plate packs, checking the thickness of the set of battery plate packs, straightening and bending the plate lugs, filling the battery cases with the battery plate packs and final inspection. The gripping robots positioned around the processing turntable are arranged movably outside the processing turntable and independently in terms of the sequences of movements.
|METHOD FOR MANUFACTURING LITHIUM ION SECONDARY BATTERY - There is provided a lithium ion secondary battery exhibiting a high capacity retention rate over a long period. There is also provided a method for manufacturing a lithium ion secondary battery including a positive electrode, a negative electrode containing a negative electrode active material layer containing a graphite, an aprotic electrolyte solution containing a sulfonate ester having at least two sulfonyl groups, and a packaging material including a laminate film involving the positive electrode, the negative electrode and the aprotic electrolyte solution, the method including: enclosing the positive electrode, the negative electrode and the aprotic electrolyte solution in the packaging material to fabricate a lithium ion secondary battery before pre-charge; pre-charging the lithium ion secondary battery before pre-charge to fabricate a lithium ion secondary battery after pre-charge; and opening the enclosure of the packaging material of the lithium ion secondary battery after pre-charge, thereafter vacuum sealing the packaging material, and regularly charging the lithium ion secondary battery after pre-charge, wherein the current for the pre-charge is 0.05 to 0.25 C, and the voltage thereof is 3.3 to 3.5 V.
|Nickel-zinc battery and manufacturing method thereof - A cylindrical Ni—Zn battery includes a battery shell, an electrode assembly and a liquid electrolyte which are sealed within the shell. The electrode assembly, whose upper part is connected to a cap, includes a nickel cathode, zinc anode, and a composite membrane. The nickel cathode and zinc anode have an edge portion which are externally exposed and bent inwardly to form the anode and cathode conductive end respectively, and edges of the composite membranes are sealed together, so that the electrodes are contained in the membranes. The battery is characterized by the simple in structure, convenient installation, low cost, safety, characteristics of long-term storage, effectively preventing the growth of dendrite, long life, strong capability to resist shake, and good performance of large current discharging.
|FUEL CELL ASSEMBLING METHOD AND FUEL CELL ASSEMBLING APPARATUS - A fuel cell assembling apparatus includes: a tensile load application device that pulls a coupling plate to apply a tensile load to the coupling plate of which a first end portion is fixed to a first end plate, the tensile load application device being temporarily fixed to a second end portion of the coupling plate; a compressive load application device that applies a compressive load to a cell stack of a fuel cell; and a fixing device that fixes the second end portion of the coupling plate to which the tensile load is applied, and a second end plate to each other. The tensile load application device applies the tensile load to the coupling plate by using a reaction force generated in response to the compressive load applied to the cell stack by the compressive load application device.
|METHOD FOR MANUFACTURING BATTERY - A current collector electrically connected to a first electrode plate or a second electrode plate includes a tubular current collection section. An external terminal electrically connected to the current collector includes a tubular terminal section into which the current collection section is inserted. The current collection section has, before being inserted into the terminal section, a greater outer diameter than the inner diameter of the terminal section. In the insertion process, the diameter of the current collection section is reduced or the diameter of the terminal section is expanded so that the outer diameter of the current collection section is equal to or smaller than the inner diameter of the terminal section, and then the current collection section is inserted into the terminal section. After that, the outer peripheral surface of the current collection section and the inner peripheral surface of the terminal section are made to be in close contact with each other by the restoring force of the current collection section having the reduced diameter or of the terminal section having the expanded diameter, and as a result, the current collection section is fixed to the terminal section.
|NON-AQUEOUS ELECTROLYTE BATTERY - A non-aqueous electrolyte battery has a working electrode 1 having a positive electrode active material, a counter electrode 2, and a non-aqueous electrolyte containing lithium. The positive electrode active material includes a lithium pre-doped transition metal oxide prepared by pre-doping lithium into a sodium-containing transition metal oxide having an initial charge-discharge efficiency of higher than 100% as determined by charging and discharging using a lithium metal negative electrode as a counter electrode, and the sodium-containing transition metal oxide is represented by the compositional formula Na
|Method of Configuring Cathodes of an Aluminum Reduction Cell - The present invention discloses a method of configuring energy saving high and low cathodes of an aluminum reduction cell, said method comprising disposing cathode carbon blocks and cathode steel rods at the bottom of the aluminum reduction cell, the cathode carbon blocks being formed by staggering high cathode blocks and low cathode blocks with different thicknesses. Both sides of the portion of each of the high cathode blocks higher than each of the low cathode blocks must be machined into bevels or arc angles, so as to achieve a good choking effect. The present invention can better improve the stability of molten aluminum-electrolyte interface within the aluminum reduction cell, decrease the polar distance effectively during normal production, and achieve a lower operating voltage of the reduction cell, thereby saving energy and reducing energy consumption.
|STACKING APPARATUS AND METHOD - There is provided a stacking apparatus including: a pickup unit including a plurality of suction units that pass a first position, a second position, a third position, and a fourth position, which are disposed at equal intervals in a first direction around a circumference, in order; and a driving unit that moves the respective suction units of the plurality of suction units in order to the first position, the second position, the third position, and the fourth position and also causes up-down movement of the respective suction units. The driving unit moves up and down the suction units to pick up a first electrode sheet, a separator, and a second electrode sheet at the first position, the second position, and the third position and to stack a separate at the fourth position, moves up and down at the fourth position to stack the second electrode sheet, moves up and down at the second position to pick up a separator and to stack a separator at the fourth position, and moves up and down at the fourth position to stack a first electrode sheet.
|METHOD FOR PRODUCING ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND METHOD OF USING LITIUM SECONDARY BATTERY - A lithium secondary battery is produced by employing a charging method where a positive electrode upon charging has a maximum achieved potential of 4.3 V (vs. Li/Li
|High Capacity Alkali/Oxidant Battery - An alkali/oxidant battery is provided with an associated method of creating battery capacity. The battery is made from an anode including a reduced first alkali metal such as lithium (Li), sodium (Na), and potassium (K), when the battery is charged. The battery's catholyte includes an element, in the battery charged state, such as nickel oxyhydroxide (NiOOH), magnesium(IV) (oxide Mn
|Reverse Osmosis Membranes Made with PFSA Ionomer and ePTFE - A method for forming a membrane includes a step of dissolving a lithium salt in a solution including an ionomer that includes protogenic groups to form a modified solution. A membrane is formed from the solution containing the lithium salt and the ionomer that includes protogenic groups. The membrane is dried and then contacted with water to form a plurality of pores therein.
|BATTERY PACK INCLUDING AN ELECTRIC HARNESS AND METHOD OF MANUFACTURING THE SAME - A battery pack including an electric coupling assembly. The battery pack includes a top housing, a bottom housing, a cell pad, a plurality of battery cells, a harness, and a circuit board. The harness includes a frame and electric coupler assembly having a plurality of internal and external electric couplings. The internal and external electric couplings include cell couplings and circuit board couplings. The internal and external couplings are held in place during manufacturing by links which are cut after the electric coupler assembly is molded into the frame.
|BATTERY PACK OF THE STAIR-LIKE STRUCTURE - Disclosed herein is a battery pack including secondary batteries which can be charged and discharged. The battery pack is configured such that secondary batteries having different sizes are stacked to form a stair-like structure having a width and a height.
|METHOD FOR GROUPING LITHIUM SECONDARY BATTERY PACKS - A method for grouping lithium secondary battery packs comprises the following steps: charging and discharging a battery for 1-3 cycles, recording the last discharge capacity C
|DEVICE FOR PRODUCING PACKAGED ELECTRODE AND METHOD FOR PRODUCING BAGGED ELECTRODE - A device for producing a packaged electrode having an electrode sandwiched between a pair of separators includes: a conveyance unit configured to sequentially overlay the electrode and the pair of separators from a front end side in a conveying direction while conveying the electrode and the pair of separators; a joining unit configured to join lateral edges of the pair of separators together, the lateral edges being positioned in a direction intersecting the conveying direction; and a controller configured to control operations of the conveyance unit and the joining unit. The controller is configured to repeatedly perform joining a plurality of times from the front end side in the conveying direction, each of the joining being performed while moving the joining unit so that a speed of the joining unit relative to a conveyance speed of a workpiece approaches zero.
|MANUFACTURING METHOD OF NEGATIVE ELECTRODE PLATE FOR NON-AQUEOUS SECONDARY BATTERY AND MANUFACTURING METHOD OF NON-AQUEOUS SECONDARY BATTERY - Disclosed is a method of manufacturing a negative electrode plate for a non-aqueous secondary battery in which it is possible to assess whether or not a binder is localized in an electrode surface without lowering the productivity of the negative electrode plate for a non-aqueous secondary battery.
|Methods and Apparatuses for Making Cathodes for High-temperature, Rechargeable Batteries - The approaches and apparatuses for fabricating cathodes can be adapted to improve control over cathode composition and to better accommodate batteries of any shape and their assembly. For example, a first solid having an alkali metal halide, a second solid having a transition metal, and a third solid having an alkali metal aluminum halide are combined into a mixture. The mixture can be heated in a vacuum to a temperature that is greater than or equal to the melting point of the third solid. When the third solid is substantially molten liquid, the mixture is compressed into a desired cathode shape and then cooled to solidify the mixture in the desired cathode shape.
|DEVICE FOR SEPARATING AT LEAST TWO ADJACENT STRANDS OF MATERIAL AND SYSTEM INCLUDING SUCH A DEVICE - The invention relates to a device (
|METHOD FOR PRODUCING ALL SOLID LITHIUM BATTERY - The main object of the present invention is to provide a method for producing an all solid lithium battery, capable of easily performing dew point control in a battery assembly step. The present invention solves the above-mentioned problems by providing a method for producing an all solid lithium battery, comprising the steps of: preparing a material composition by adding Li
|METHOD FOR MANUFACTURING ELECTRODE PLATE FOR BATTERY - An electrode plate precursor on which an active material layer is formed by applying an active material onto at least one surface of a current collector in a lengthy belt shape by means of a die comprising a paste storing part where a paste containing the active material is accumulated and a discharge flow path discharging the above paste from the paste storing part. A plan view configuration of the discharge flow path is adjusted by adjusting a plan view configuration of thin plate-like members that are arranged respectively on both end portions of the discharge flow path so that the active material layer formed in the process has a uniform thickness throughout the entire length in the width direction of the electrode plate precursor.
|CORE PACK MANUFACTURING APPARATUS - A core pack manufacturing apparatus for preventing or substantially preventing an iron from contacting a cell or a protective circuit part in a process of soldering a connection tab of the cell to a connection terminal of the protective circuit part. A core pack manufacturing apparatus for soldering a connection tab connected to a cell to a connection terminal of a protective circuit part includes a cap including a first cover configured to cover the cell, and a second cover extending from a side of the first cover and configured to cover the protective circuit part, the second cover having an opening part configured to expose the connection tab and the connection terminal through the second cover for soldering.
|INTERCALATION ANODE PROTECTION FOR CELLS WITH DISSOLVED LITHIUM POLYSULFIDES - Battery cells having lithium intercalation anodes protected by surface coatings and active sulfur cathodes, and methods for their fabrication, provide improved battery cell performance.
|METHOD OF PRODUCING SOLID ELECTROLYTE-ELECTRODE ASSEMBLY - A method of producing a solid electrolyte-electrode assembly including a pair of electrodes and a solid electrolyte layer disposed between the pair of electrodes, the method including applying pressure to a solid electrolyte and fabricating a solid electrolyte layer; fabricating a stack by stacking an electrode layer on at least one side of the solid electrolyte layer; and applying pressure in a stacking direction of the stack while heating the stack.
|Method of Assembling Electric Storage Battery Packs - A method of assembling a battery assembly includes forming battery packs, each pack including battery cells and cooling passages extending along a length of the pack, connecting terminals of each pack to a dc source and charging each pack to a desired state of charge, installing battery packs on a tray located on an automatically guided cart, using the cart to carry the battery assembly to locations where method steps are performed including performing testing for fluid leaks in a cooling circuit comprising interconnected passages of each pack on the tray and installing electric circuits in the assembly.
|Method of producing active material for lithium secondary battery, method of producing electrode for lithium secondary battery, method of producing lithium secondary battery, and method of monitoring quality of active material for lithium secondary battery - A method of producing an active material for a lithium secondary battery, by which impurities causing problems in synthesizing an active material for a lithium secondary battery, including a lithium transition metal oxyanion compound are removed efficiently and enhancement of an energy density is realized, is provided. By cleaning the active material for a lithium secondary battery, including a lithium transition metal oxyanion compound, with a pH buffer solution, for example, it is possible to efficiently remove just only impurities such as Li
|SECONDARY BATTERY FOR MEDIUM AND LARGE SIZE BATTERY MODULE - Disclosed herein is a secondary battery for medium-sized or large-sized battery modules. The secondary battery is assembled while an electrically connecting member used at the time of manufacturing a battery module is previously welded to at least one of electrode terminals of the secondary battery.
|Composite compound with mixed crystalline structure - A composite lithium compound having a mixed crystalline structure is provided. Such compound can be formed by heating a lithium, iron, phosphorous and carbon mixed compound with another metal compound together. The resulting mixed metal crystal can exhibit superior electrical property and is a better cathode material for lithium secondary batteries.
|MANUFACTURING METHOD FOR BATTERY INCLUDING ELECTRODE ASSEMBLY FORMED BY WINDING - A manufacturing method for a battery, including the steps of: preparing a positive electrode plate and a negative electrode plate which are both belt-like; performing a curving work onto an end of at least one of the positive electrode plate and the negative electrode plate so that the end has a curvature, the end being located in a longitudinal direction of the plate; and after performing the curving work, performing a winding work by winding the positive electrode plate and the negative electrode plate with a separator there between all together to produce an electrode assembly. In the winding step, the winding work is performed such that the end having the curvature is wound last in the winding work and such that the curvature curves toward an internal side of the electrode assembly.
|Method for manufacturing electrode plate for battery - A method for manufacturing an electrode plate for a battery comprises the steps of intermittently transferring a strip-shaped electrode plate material (
|ELECTRIC COUPLING OF A CONNECTION TO AN ELECTROCHEMICAL BUNDLE - The subject of the present invention is a system for electric coupling of a plane connection (
|METHOD FOR ASSEMBLING A STACKED PLATE ELECTROCHEMICAL DEVICE - The present invention relates to an improved method for assembling a stacked plate electrochemical device. According to an exemplary embodiment of the invention, two pairs of electrodes are provided: two cathodes and two anodes. Each electrode in each pair is connected to the other electrode via conductive interconnects. The pairs of electrodes are then folded together forming an electrode package, such that the cathodes and anodes alternate position within the electrode package. A number of electrode packages are then stacked together depending on the desired number of electrodes in the stacked plate cell. The stacked electrodes are then placed in a cell can and the conductive interconnects are connected to the cell can terminals to form the stacked plate electrochemical device. Processes according to exemplary embodiments of the present invention result in a faster, more efficient assembly time for the stacked plate electrochemical device.
|METHOD FOR MANUFACTURING SECONDARY BATTERY AND METHOD FOR PREPARING POSITIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY - A method for producing a secondary cell according to the present invention includes step (A) of putting a solution having an electrochemically reversibly oxidizable/reducible organic compound and a supporting electrolyte dissolved therein into contact with a positive electrode active material, thereby oxidizing or reducing the positive electrode active material; and step (B) of accommodating the oxidized positive electrode active material and a negative electrode active material in a case in the state of facing each other with a separator being placed therebetween, and filling the case with an electrolyte solution. By oxidizing or reducing the positive electrode active material, lithium ions or anions as the support electrode are incorporated into the positive electrode active material.
|Process of producing nonaqueous secondary battery - A process of producing a nonaqueous secondary battery comprising the steps of disposing a separator between a member containing a silicon-based material and a positive electrode, together with interposing a metallic lithium layer between the separator and the member to obtain an assembly, and aging the resulting assembly for a prescribed period of time to alloy lithium with the silicon-based material. Lithium alloying is preferably performed to a degree such that the amount of lithium in the silicon-based material is 5% to 50% based on the theoretical initial charge capacity of silicon. When the positive electrode has a lithium-containing active material for positive electrode, lithium alloying is preferably performed to a degree satisfying formula (1): 4.4A−B≧C, where A is the number of moles of silicon in the member containing the silicon-based material; B is the number of moles of lithium in the lithium-containing active material for positive electrode; and C is the number of moles of lithium to be alloyed.
Patent applications in class Electric battery cell making
Patent applications in all subclasses Electric battery cell making