电源技术2001，Vol.25Issue(2)：91-93,3.
电解液添加剂对锂离子蓄电池循环性能的影响
Effect of anisole as an additive in electrolyte on the cycle performance of lithium-ion rechargeable battery
黄文煌 1严玉顺 1万春荣 1姜长印 1应皆荣1
作者信息
- 1. 清华大学核能技术设计研究院新型能源与材料化学研究室,
- 折叠
摘要
Abstract
In order to improve the cycle performance of lithium-ion rechargeable battery， a little of anisole was added in the electrolyte system of EC／DEC／1．0 mol*L－1 LiClO4， with improved graphite and Li as electrode materials． The cycle test results show that the introduction of trace anisole can promote specific capacity and cycling efficiency and can reduce the declining rate of the specific capacity． The surface analysis results indicated by FTIR show that the RCO3Li obviously in the SEI（Solid Electrolyte Interface）of the carbon electrode with the introduction of a trace of anisole， after the first intercalation of Li＋ into the carbon electrode． But the concentration of Li2CO3 remains nearly consistent and a new component， CH3OLi， is found in SEI． It can be concluded from these results that anisole reacts with the reduction product of EC and DEC， RCO3Li， in the first process of Li＋ intercalating into the carbon electrode． The obtained CH3OLi is helpful in building up a more effective and stable SEI of the carbon electrode， reducing the cointercalation of solvent molecular． All these contribute to the improvement of the cycle performance of lithium-ion battery．关键词
锂离子蓄电池/苯甲醚/比容量/充放电效率分类
信息技术与安全科学引用本文复制引用
黄文煌,严玉顺,万春荣,姜长印,应皆荣..电解液添加剂对锂离子蓄电池循环性能的影响[J].电源技术,2001,25(2):91-93,3.
