Li4Ti5O12/Ag composite as electrode materials for lithium-ion battery

被引:116
作者
Huang, Shahua [1 ]
Wen, Zhaoyin [1 ]
Zhang, Jingchao [1 ]
Gu, Zhonghua [1 ]
Xu, Xiaohe [1 ]
机构
[1] Chinese Acad Sci, Shanghai Inst Ceram, Grad Sch, Shanghai 200050, Peoples R China
基金
中国国家自然科学基金;
关键词
lithium ion batteries; electrochemical performance; Li4Ti5O12/Ag; composites;
D O I
10.1016/j.ssi.2006.01.050
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The Li4Ti5O12/Ag composites were prepared by thermal decomposition of AgNO3 added to Li4Ti5O12 powders. The influence of the Ag contents and the mixing media on the particle size, morphology and electrochemical performance of Li4Ti5O12/Ag composites were investigated. The highest discharge capacity of the Li4Ti5O12/Ag composite reached at the 5 wt.% of Ag content. Compared with alcohol medium, distilled water as mixing medium presented the Li4Ti5O12/Ag composite with higher specific capacity and better cycling performance, leading to a reversible capacity after 50 cycles of 184.2 mAh/g with a capacity degradation of 3.31% compared to the second cycle at 2 C rate. (c) 2006 Elsevier B.V All rights reserved.
引用
收藏
页码:851 / 855
页数:5
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