%0 Journal Article
%T Preparation of Amorphous Carbon-coated Nano-scale SnO2 and its Performance for Anodea¤Material of Lithium Ion Secondary Battery
%A YANG Tong-Huan
%A GUO Yong-Lang
%A ZHOU Xue-Chou
%A LIU Yong-Mei
%J 无机材料学报
%D 2009
%I Science Press
%R 10.3724/sp.j.1077.2009.00147
%X Amorphous carbon-coated nano-scale SnO2 powders were prepared by pyrolyzing the mixtures of starch and Sn(OH)4. The structure, morphology and properties of the sample were investigated by XRD, SEM￡ TEM￡ STEM-EDX and discharge-charge cycle. The results of XRD, SEM, TEM and STEM-EDX show that amorphous carbon of the sample is flaky and amorphous Carbon-coated SnO2 particles (20-50nm) are distributed in amorphous carbon uniformly. The results of discharge-charge cycle show that the different proportions between SnO2 and amorphous carbon lead to different discharge-charge performances. The specific capacity of the sample (SnO2 ￡ 1 q) reaches 404mAh/g which is even stable in twentieth cycle.
%K lithium-ion battery
%K anode￡ SnO2
%K amorphous carbon-coated
%U http://www.jim.org.cn/fileup/PDF/20090132.pdf