%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