Article ID Journal Published Year Pages File Type
1626813 Journal of Alloys and Compounds 2006 4 Pages PDF
Abstract

Microscaled Si/SnSb alloy composite was synthesized from micron Si and oxides of Sn and Sb by carbothermal reaction method. The synthesized Si/SnSb composite electrode exhibits a high specific capacity and a good cycling stability due to its relatively large particle size and multi-phase characteristics. The former reason leads to lower surface impurity and thus the lower initial capacity loss, while the latter results in a stepwise lithiation/delithiation process and a smooth volume change of electrode in cycles. Si/SnSb composite shows an initial inertia against the electrochemical reactions, but it becomes more active quickly in the following cycles. A specific capacity of 1017 mAh g−1 with an initial capacity loss of 120 mAh g−1 was achieved for the synthesized Si/SnSb composite.

Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
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