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

被引：0

作者：

刘萍 ^{[1
]}

张治安 ^{[1
]}

李劼 ^{[1
]}

赖延清 ^{[1
]}

机构：

[1] School of Metallurgical Science and Engineering,C entral South University

来源：

Journal of Central South University | 2010年 / 17卷 / 06期

关键词：

lithium-ion battery; anode material; Li4Ti5O12; carbon; electrochemical performance;

D O I：

暂无

中图分类号：

TB33 [复合材料];

学科分类号：

0805 ; 080502 ;

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：4

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