高等学校化学学报

• 研究简报 • 上一篇    下一篇

天然石墨阳极在室温离子液体电解液中的电化学性质

郑洪河1, 曲群婷1, 卓克垒1, 王键吉1, 安部武志2, 小九见善八2   

    1. 河南师范大学化学与环境科学学院, 新乡 453007;
    2. 日本京都大学工学部, 日本京都 615-8150
  • 收稿日期:2006-01-03 修回日期:1900-01-01 出版日期:2006-12-10 发布日期:2006-12-10
  • 通讯作者: 郑洪河

Electrochemical Properties of Natural Graphite Anodes in Room Temperature Ionic Liquid Electrolyte

ZHENG Hong-He1, QU Qun-Ting1, ZHOU Ke-Lei1, WANG Jian-Ji1, Abe Tekeshi2, Ogumi Zempachi2   

    1. College of Chemical and Environmental Science, Henan Normal University, Xinxiang 453007, China;
    2. Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
  • Received:2006-01-03 Revised:1900-01-01 Online:2006-12-10 Published:2006-12-10
  • Contact: ZHENG Hong-He

摘要:

对比研究了天然石墨在室温离子液体和有机电解液中的嵌脱锂性质, 探讨了添加剂提高天然石墨在离子液体电解液中电化学性质的微观机制.

关键词: 锂离子电池, 离子液体, 天然石墨, 电解液

Abstract: Electrochemical properties of a natural graphite anode in ionic liquid and organic electrolytes was comparatively investigated. The results reveal that the organic cation reversibly inserted into and deinserted from graphene interlayer. The addition of chloroethylenene carbonate(Cl-EC) resulted in significant electrochemical enhancement. The mechanisms responsible for the electrochemical enhancement were discussed through ac impedance, SEM, and FTIR measurements.

Key words: Lithium ion battery, Ionic liquid, Natural graphite, Electrolyte

中图分类号: 

TrendMD: