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.

引用

页码：1207 / 1210

页数：3

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