锂离子电池负极材料Li_4Ti_5O_(12)的研究进展  

Recent Developments in Li_4Ti_5O_(12) Anode Material for Lithium Ion Batteries

作　　者：王保峰[1] 曹杰[1] 谭茂[1] 刘宇[1,2] 

机构地区：[1]上海电力学院环境与化学工程学院,上海200090 [2]中国科学院上海硅酸盐研究所,上海200050

出　　处：《材料导报（纳米与新材料专辑）》2013年第2期140-144,共5页

基　　金：上海市教委085工程项目

摘　　要：分析了尖晶石型钛酸锂(Li4Ti5O12)的结构,介绍了其制备方法,包括固相反应法、溶胶-凝胶法、水热合成法等。固相反应法易于实现工业化生产,但颗粒的形貌不易控制;溶胶-凝胶法制得的Li4Ti5O12材料纯度高、粒径小,但是成本高;水热法合成材料的尺寸大小均一,但需要控制的条件多。此外,讨论了钛酸锂电化学性能的一些改性方法,包括减小颗粒尺寸、掺杂和碳包覆等,并展望了其发展方向。The crystal structure of spinel-type lithium titanate （Li4Ti5O12） is analysed.The preparation methods such as solid-state reaction,sol-gel method,and hydrothermal synthesis are reviewed.Solid state reaction is easy to realize the industrial production,but it is hard to control the particle morphology; Li4Ti5O12 materials with high purity and small size could be obtained through sol-gel method,yet the cost is high; we can achieve the uniform size materials via hydrothermal synthesis,however,there are many conditions to regulate.Besides,the electrochemical performance of Li4Ti5O12 through decreasing particle size,doping,and carbon coating are also reviewed.And the developing direction of Li4 Ti5O12 materials is prospected.

关 键 词：锂离子电池 负极材料 LI4TI5O12 制备方法 

分 类 号：TM912.9[电气工程—电力电子与电力传动]