Abstract
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.
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