Influence of B on the Structures and Electrochemical Properties of Sn-Co Alloy

被引：0

作者：

Shen Ding ^{[2
]}

Yang Shao-Bin ^{[1
]}

Wu Xiao-Guang ^{[1
]}

Mi Han ^{[1
]}

机构：

[1] Liaoning Tech Univ, Coll Mat Sci & Engn, Fuxin 123000, Peoples R China

[2] Liaoning Tech Univ, Coll Resource & Environm Engn, Fuxin 123000, Peoples R China

来源：

CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE | 2011年 / 32卷 / 10期

关键词：

Lithium-ion battery; Sn-Co alloy; Boron; NEGATIVE ELECTRODE MATERIALS; LITHIUM; PERFORMANCE; ANODES;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The Sn-Co/B composites were synthesized using solid-state sintering and the influence of B element on the structures and electrochemical properties was analyzed. XRD results illustrate that Sn-Co alloy consists of CoSn phase. Adding B results in the refinement of grain size and the formation of CoSn2 phase. Constant-current cyclic testing show that adding B improves the cycle performance of Sn-Co alloy, but reduce its discharge capacity. The initial discharge capacity of Sn-Co/B(4%, mass fraction) is 216 mA . h/g and the capacity retention is 82. 9% after 30 cycles, showing the composite has good structural stability.

引用

页码：2367 / 2370

页数：4

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