Acta Chim. Sinica ›› 2015, Vol. 73 ›› Issue (10): 992-1001.DOI: 10.6023/A15040272 Previous Articles     Next Articles

Review

无机全固态锂离子电池界面性能研究进展

邱振平, 张英杰, 夏书标, 董鹏   

  1. 昆明理工大学 材料科学与工程学院 昆明 650093
  • 投稿日期:2015-04-22 发布日期:2015-06-15
  • 通讯作者: 张英杰 E-mail:zhangheroyj@163.com

Research Progress on Interface Properties of Inorganic Solid State Lithium Ion Batteries

Qiu Zhenping, Zhang Yingjie, Xia Shubiao, Dong Peng   

  1. Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093
  • Received:2015-04-22 Published:2015-06-15

The development of solid-state lithium offers a fundamental solution to safety concerns of liquid electrolyte for lithium battery, because of the non-flammability of solid electrolyte. With society's increasing demand for large size lithium ion batteries and a growing concern about the safety of batteries, the development of solid lithium battery is imminent. To prepare solid lithium battery with excellent performance, we should obtain solid electrolyte with high ambient temperature ion conductivity and make a good contact between electrode and solid electrolyte. Most studies have been focus on the preparation of solid electrolyte with high ambient temperature ion conductivity. Although the conductivity of recently discovered solid electrolyte are comparable with those observed for liquid electrolytes. The high-rate capability of solid-state lithium batteries is still poor. This fact tell us that the rate-controlling step is at the interface between the electrode and the electrolyte materials. Only a few researchers have studied the interface between the electrode and the electrolyte materials. This paper introduces some oxide and sulfide electrolyte with high ambient temperature ion conductivity briefly. We mainly analyze the reasons for the high impedance at the interface between electrode and solid electrolyte, and furthermore, we investigate the modification methods to reduce the interface resistance.

Key words: solid electrolyte, solid lithium battery, interface theory, modification measures, properties