电源技术2012，Vol.36Issue(2)：172-174,3.
锂离子电池过充保护添加剂shuttle的研究
Study of shuttle as overcharge protection additive in lithium-ion battery
骆宏钧 1张校刚 2陈黎1
作者信息
- 1. 南京航空航天大学材料科学与技术学院,江苏南京210016
- 2. 张家港市国泰华荣化工新材料有限公司,江苏张家港215631
- 折叠
摘要
Abstract
2,5-diterbutyl-1,4-dimethoxybenzene (shuttle) as additive was added into Li-ion battery electrolyte in order to improve the ability of overcharge protection. The properties of the LiFePO4 battery were characterized by cyclic voltammetry, cycle performance at room temperature and electrochemical impedance spectrometry. The addition of 2% shuttle can be oxidized at about 3.81 V (vs. Li /Li+) in 1 mol/L LiPF/(EC+DEC+Elv1C) (1:1:1) +1%VC electrolyte due to the cleavage of the alkoxy bond and consumption of the interior electric charge. Therefore, the overcharge protection in lithium-ion batteries can be achieved. Moreover, the capacity retention of lithium-ion batteries can be improved from 91.60% to 94.70% after 180 cycles.关键词
锂离子电池/过充保护/添加剂/2,5-二叔丁基-1,4-二甲氧基苯Key words
lithium-ion battery/ overcharge protection/ additive/ shuttle分类
信息技术与安全科学引用本文复制引用
骆宏钧,张校刚,陈黎..锂离子电池过充保护添加剂shuttle的研究[J].电源技术,2012,36(2):172-174,3.
