Performance of Lithium Ion Batteries with Carbon Nanotube Paper/Nano Silicon Composite Electrode

LIU Zhen-hong, SUN Xiao-gang, CHEN Long, QIU Zhi-wen, CAI Man-yuan
2018 Journal of Materials Engineering  
Nano silicon and multiwalled carbon nanotubes(MWCNTs) composites were used as active materials, paper fiber as substrate, MWCNTs as conductive agent, MWCNTs conductive paper was obtained to replace the copper foil current collector and applied in silicon based lithium ion battery. The morphology and the electrochemical performance of the composites were analyzed by scanning electron microscopy (SEM),transmission electron microscopy(TEM), galvanostatic charge-discharge tests and electrochemical
more » ... nd electrochemical impedance spectroscopy(EIS) tests. The results indicate that the lithium ion battery with MWCNTS paper/nano silicon composites reaches a specific capacity of about 1000mAh/g after 50 cycles in the current density of 80mA/g, and has good cycle stability even in the high current density of 2000mA/g.
doi:10.11868/j.issn.1001-4381.2016.000175 doaj:a55bd4bcf58c49db8684dd984772c404 fatcat:d4raa7mqt5aqrbmluzct4vhege