Novel Sn/C composite anode material for lithium-ion batteries

摘要

Sn/C composite was prepared by using cationic starch and sodium stannate. The obtained composite was characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The morphology of the composite lies on the content of carbon. The results of TEM show the Sn/C composite with 38.6 wt% carbon has higher dispersivity. The composite s Electrochemical Performance was evaluated by galvanostatic cycling and cyclic voltammetry. The final result showed when carbon content of Sn/C composite was 38.6wt%, it had excellent cycle performance and higher capacity.