非对称电化学电容器负极材料Li_4Ti_5O_(12)的研究进展  

Research Progress in Li_4Ti_5O_(12) as Negative Electrode Material for Asymmetric Electrochemical Capacitor

作　　者：张治安[1] 王姣丽[1] 赖延清[1] 李劼[1] 

机构地区：[1]中南大学冶金科学与工程学院,长沙410083

出　　处：《材料导报》2008年第9期26-29,共4页Materials Reports

基　　金：国家科技支撑计划项目(2007BAE12B01)

摘　　要：Li4Ti5O12是一种尖晶石结构的可嵌锂材料,具有比能量高、循环性能稳定等特点,是电化学储能器件理想的电极材料。综述了Li4Ti5O12用作非对称电化学电容器电极材料的结构特点、储能原理、合成方法、电化学性能以及改性研究。针对Li4Ti5O12作为非对称电化学电容器负极材料大电流充放电时性能不佳的问题,提出了改进Li4Ti5O12电极材料电化学性能的研究思路。Due to the high specific capacity and long cycle life, spinel Li4Ti5O12 can he an ideal candidate electrode material for electrochemical energy device. The characteristics of Li4Ti5O12 are reviewed, including its crystal structure, the mechanism of storing energy, the synthesis methods, electrochemical property and the effect of modification. Moreover, the solutions to improving its electrochemical performance under the large current discharge condition are also discussed.

关 键 词：非对称电化学电容器 LI4TI5O12 合成 改性 

分 类 号：TM912[电气工程—电力电子与电力传动]