Effects of carbon sources on electrochemical performance of Li4Ti5O12/C composite anode materials

被引：0
|
作者：
Ping Liu
Zhi-an Zhang
Jie Li
Yan-qing Lai
机构：
[1] Central South University,School of Metallurgical Science and Engineering
来源：
Journal of Central South University of Technology | 2010年 / 17卷
关键词：
lithium-ion battery; anode material; Li; Ti; O; carbon; electrochemical performance;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Li4Ti5O12/C composite materials were synthesized by two-step solid state reaction method with glucose, sucrose, and starch as carbon sources, respectively. The effects of carbon sources on the structure, morphology, and electrochemical performance of Li4Ti5O12/C composite materials were investigated by SEM, XRD and electrochemical tests. The results indicate that carbon sources have almost no effect on the structure of Li4Ti5O12/C composite materials. The initial discharge capacities of the Li4Ti5O12/C composite materials are slightly lower than those of as-synthesized Li4Ti5O12. However, Li4Ti5O12/C composite materials show better electrochemical rate performance than the as-synthesized Li4Ti5O12. The capacity retention (79%) of the Li4Ti5O12/C composite materials with starch as carbon source, is higher than that of Li4Ti5O12/C composite materials with glucose and sucrose as carbon source at current rate of 2.0C.
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页码：1207 / 1210
页数：3
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