Improving the electrochemical performance of Li4Ti5O12/Ag composite by an electroless deposition method

被引：125
|
作者：
Huang, Shahua
Wen, Zhaoyin
Zhang, Jingchao
Yang, Xuelin
机构：
[1] Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Shanghai 200050, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2007年 / 52卷 / 11期
基金：
中国国家自然科学基金;
关键词：
composite; high rate performance; lithium-ion batteries; Li4Ti5O12/Ag;
D O I：
10.1016/j.electacta.2006.10.044
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Nano-sized silver particle (< 20 nm) was highly dispersed on the surface of Li4Ti5O12 particles by an electrole ss deposition method. The Ag additive played a positive role in improving the electrical contact between Li4Ti5O12 particles and the current collector and therefore improved the high rate capacity of Li4Ti5O12, but it did not take part in the electrochemical reactions with Li+ in Li4Ti5O12/Ag composite during the cycling. The experimental results showed that the smaller the silver particles and the more homogeneous dispersion of silver particles in the Li4Ti5O12 matrix, the better the cycling performance we obtained. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：3704 / 3708
页数：5
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