Aramid Fiber/MWCNTs conductive paper collector improves the performance of SnO2 lithium-ion batteries

Aramid carbon nanotube conductive papers (ACP) were prepared by using multi-walled carbon nanotubes as conductive agent and aramid fiber as the matrix. The ACP were used as the anode current collector of SnO2 lithium ion batteries (LIBs) instead of copper foil. The structure was characterized by X-ray diffraction analysis (XRD), Raman spectroscopy, transmission electron microscopy (TEM) and scanning electron microscopy (SEM). The electrochemical performance was characterized by Galvanostatic charge-discharge test. As a result, the ACP performed better than copper foil. After 60 cycles at a current density of 100 mA/g, the specific capacity can be maintained at 876 mAh/g, and the SnO2/ACP electrode exhibited excellent rate performance.