期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 5, 期 8, 页码 657-661出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/S1388-2481(03)00147-4
关键词
carbonaceous mesophase spherule; SnNi alloy; composite anode; lithium ion batteries; electrochemical characterization
Carbonaceous mesophase spherule (CMS) is a commercial anode material for rechargeable lithium batteries. A composite anode material of SnNi deposited carbonaceous mesophase spherule was prepared by co-precipitation method. The structural and electrochemical characterization of the SnNi/CMS composite anode material was studied. According to the measurement of its electrochemical characterization, the prepared SnNi/CMS composite anode material shows much better electrochemical performance than CMS. The first discharge capacity of 360 mA h g(-1) was obtained for the SnNi/CMS composite anode material, and its discharge capacity maintained at 320-340 mA h g(-1) in the following cycles. It indicates that the modification of CMS with SnNi alloy can further improve the intercalation performance of CMS. SnNi/CMS composite material shows a good candidate anode material for the commercial rechargeable lithium batteries. (C) 2003 Published by Elsevier B.V.
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