基于转化反应机制的锂离子电池电极材料研究进

基于转化反应机制的锂离子电池电极材料研究进展*

吴超 庄全超 徐守冬 沈明芳 史月丽 孙智

(中国矿业大学材料科学与工程学院锂离子电池实验室，江苏 徐州221116) **

摘 要 基于转化反应机制而实现储锂功能的电极材料的研究和开发是提高锂离子电池性能尤其是其可逆循环容量的重要方法，对于锂离子电池未来的发展有着非常重要的意义。本文综述近年来基于转化反应机制而实现储锂功能的锂离子电池电极材料的研究进展，介绍了转化反应机制等新概念，重点讨论了基于转化反应机制而实现储锂功能的简单过渡金属化合物电极材料的电化学性能、电极界面特性及其电化学性能改进的方法，文章最后对基于转化反应机制而实现储锂功能的锂离子电池电极材料未来的发展做了展望。

关键词 锂离子电池；转化反应；过渡金属化合物

中图分类号：O646；TM911 文献标识码：A 文章编号：

Research progress of electrode materials entailing conversion reaction for Li-ion batteries

Wu Chao Zhuang Quan-chao** Xu Shou-Dong Shen Ming-Fang Shi Yue-Li Sun Zhi

(Li-ion Batteries Lab, School of Materials Science and Engineering, China University of Mining and technology, Xuzhou 221116,)

Abstract The development of electrode materials entailing conversion reactions were very important methods for improving the performance of Li-ion batteries, especially for improving its reversible capacity upon cycling. In this paper, the recent development and prospects to future of the use of transition metal compounds that react with Li through conversion reactions as both positive and negative electrode materials in Li-ion batteries were reviewed, the mechanisms of the conversion reactions were introduced, and several factors currently handicaping the applicability of electrode materials entailing conversion reactions were also reviewed. Emphasis was put on the electrochemical behavior, the properties of electrode/electrolyte interfaces and the methods for improving the performance of these transition metal compounds entailing conversion reactions. At last, the directions of future research of electrode materials through conversion reactions were put forward.

Key words Li-ion batteries; conversion reactions; transition metal compounds

1 引言 收稿：2010年x月，收修改稿：2010年x月

*中央高校基本科研业务费专项资金(编号: 2010LKHX03、2010QNB04、2010QNB05)、中国矿业大学科技攀登计划(编号: ON090237)和江苏省普通高校研究生科研创新计划(编号: CX10B-153Z)资助项目。

**通讯联系人 e-mail：zhuangquanchao@.