Cycle Life Sensor for Rechargeable Lithium Batteries
{'Code': '15030000', 'Directorate': {'Abbreviation': 'TIP', 'LongName': 'Dir for Tech, Innovation, & Partnerships'}, 'Division': {'Abbreviation': 'TI', 'LongName': 'Translational Impacts'}}
{'SignBlockName': 'Ritchie B. Coryell', 'PO_EMAI': None, 'PO_PHON': None}
Rechargeable power sources which provide high energy densities at high          rates have been under active investigation for the past twenty-five             years.  While many effective rechargeable positive electrode materials          (the cathode) have evolved over the past 10 years, progress in                  developing a practical secondary Li negative (the anode) has been               slow.  The principal reason for the slow evolution of this technology           resides in the inability to cycle the Li electrode at high capacities           with high efficiency over a long period of time.  This is because               aprotic organic solvents and supporting electrolyte salts are                   intrinsically reactive with Li.  Thus, the relative rates of a host of          competing reactions ultimately determine cell cycle life.  The goal of          this research is two-fold: to ascertain which chemical degradation              products ultimately influence cell safety and cycle life; and to                develop a commercial in situ electroanalytical sensor which specifies           the state of a cell at any point along its cycle life.  In battery              configurations, a single cycle-life or voltage limited cell will                unbalance the system causing premature failure.  A state of cell                sensor would enable the end user to simply replace a single bad cell            rather than the entire battery unit.                                                                                                                            The PIs plan to use computer-controlled square wave voltammetry (SWV)           at two or more microelectrodes to obtain information regarding                  homogeneous and heterogeneous cell chemistries.  Ni microelectrodes,            embedded in the cell package, will be used to directly sense the                nature and degree of Li/electrolyte reactivity as a function of                 cycling history.  They are well qualified to complete this work and             their facilities are adequate.  A Phase I SBIR grant is recommended.
{'FirstName': 'Victor', 'LastName': 'Koch', 'PI_MID_INIT': 'R', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Victor R Koch', 'EmailAddress': None, 'PI_PHON': None, 'NSF_ID': '000294997', 'StartDate': '02/01/1988', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Covalent Associates Incorporated', 'CityName': 'WOBURN', 'ZipCode': '018011682', 'PhoneNumber': '6179381140', 'StreetAddress': '10 STATE ST', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Massachusetts', 'StateCode': 'MA', 'CONGRESSDISTRICT': '05', 'CONGRESS_DISTRICT_ORG': 'MA05', 'ORG_UEI_NUM': None, 'ORG_LGL_BUS_NAME': None, 'ORG_PRNT_UEI_NUM': None}
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{'Code': '5371', 'Text': 'SBIR Phase I'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1987&All=true', 'xml': '8760148.xml'}