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Preparation and Application as Anodes in Lithium-ion Battery of Composite Carbon Nanotube Paper

A new type of carbon nanotube( CNT) paper were prepared by mixing carbon nanotube with paper fiber. The paper fibers were used as the basic framework and the carbon nanotubes as conductive filler. The CNT papers were made by vacuum filtration method. The properties of the conductive paper,which used carbon nanotubes as the conductive fillers, were compared with the graphited carbon nanotubes and the raw graphite carbon nanotubes. The morphology and performance of the CNTs and CNT papers were characterized by the scanning electron microscope( SEM), transmission electron microscope( TEM),four-point probes,XRD diffraction and Raman spectra. The CNT papers were cut into the anode electrodes and assembled into half cells. The electrochemical performance of the batteries were detected by a cell tester( CT-3008W-5V5 m A-S4). The results show that the stable discharge specific capacity of the cells reached 266 m Ah / g at 0. 1 C with graphitized CNTs as filler of the anode electrodes. The specific discharge capacity of batteries increases from 142 m Ah / g to 266 m Ah / g and achieve a 87. 3% improvement.