Preparation of tin-oxide nanotubes as anode for Li-ion batteries

来源期刊：中国有色金属学报(英文版)2007年增刊第1期(Part ⅡB)

论文作者：王剑华 张利华 陈冬华 郭玉忠

文章页码：928 - 933

Key words：lithium ion battery; nano-tube; tin-oxide; template

Abstract: The influence of nanostructure on the electrochemical properties of Li-ion battery was investigated. Tin-oxide nanotubes were prepared by combining sol-gel method with polycarbonate template. Scanning electron microscopy and X-ray diffractometry were applied to characterize the obtained material. The electrochemical measurements were conducted on the nanostructured tin-oxides as electrode of Li-ion batteries. The XRD data indicate that the wall of tube is composed of cassiterite crystals of several nanometers. The electrochemical measurements show that the reaction under potential 0.1-0.2 V is possibly related to the tubular structure of the material. It is suggested that the trapping of Li by dangling bonds and defects sites also contributes to the larger irreversible capacity loss in the first discharge.

基金信息：the National Natural Science Foundation of China