电子元件与材料2017，Vol.36Issue(2)：19-24,6.DOI:10.14106/j.cnki.1001-2028.2017.02.005
以预锂化钛酸锂为负极的混合型超级电容器的性能研究
Behaviorofhybrid supercapacitor using pre-lithiated lithium titanate as anode
摘要
Abstract
The pre-lithiated lithium titanate is used as the anode for the fabrication of active carbon/lithium titanate (AC/LTO) supercapacitor to solve thediving phenomenon rangingfrom 1.5 V to 2.0 V. The constant current charge-discharge and cyclic voltammetry tests of soft-package AC/LTO hybrid supercapacitor depict that when the mass ratio of AC to LTO maintains 2/1 and the degree of pre-lithiation ranges from 5% to 30% (take LTO actual capacity as 150 mAh/g), the capacity of device at the lower voltage rangingfrom 1.5 V to 2.0 V is remarkably improved. Specifically, with the pre-lithiation degree fixed at 20%, the device exhibits well linear charge-discharge behavior at full-voltage window from 1.5 V to 2.8 V and the specificenergy increases by over 20% in contrast with that of un-lithiated sample. Also, the energy retention at 100C reaches 63% of that at 5C current, which shows excellent rate performance. However, excessive pre-lithiation can lead to the deficiency of anode,which causes the side effect to the performance of device.关键词
钛酸锂/预锂化/活性炭/线性充放电/倍率性能/超级电容器Key words
lithium titanate/pre-lithiation/active carbon/liner charge-discharge/rateperformance/supercapacitor分类
信息技术与安全科学引用本文复制引用
安仲勋,夏恒恒,徐甲强,华黎..以预锂化钛酸锂为负极的混合型超级电容器的性能研究[J].电子元件与材料,2017,36(2):19-24,6.基金项目
国家工程技术研究中心组建项目资助（No.2013FU125Q02）；上海市科学技术委员会科研计划项目资助（No.16DZ1204300；No.14DZ1202400）；国家科技支撑计划资助项目 （）
