Energy Storage Science and Technology ›› 2020, Vol. 9 ›› Issue (1): 217-238.doi: 10.19799/j.cnki.2095-4239.2019.0203

Previous Articles     Next Articles

Progress on fluoride ion shuttle batteries

YU Yifan1,2, GU Yuping1,2, LI Chilin1,2()   

  1. 1. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Science, Shanghai 201899, China
    2. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2019-09-10 Revised:2019-09-26 Online:2020-01-05 Published:2019-09-23

Abstract:

Although research on the fluoride-ion battery (FIB) as a new energy storage system is in its infancy, FIB has attracted increasing attention because of its high energy density, wide electrochemical window, and excellent charge transport kinetics. The difficulty in achieving high performance FIB lies in the exploration of electrolytes which allow rapid transportation of F-during electrochemical reactions and the development of electrode materials for fluorine-based electrochemical reactions. In this review, the research progress in terms of the electrolyte and electrode materials of FIBs since the first proof of feasibility for a rechargeable FIB was presented in 2011 is summarized by introducing the developed solid electrolytes, liquid electrolytes, and conversion-and intercalation-based electrode materials. These research results expound the ion conduction mechanism of different prototype solid electrolytes and solve issues related to insoluble fluoride salts and the fact that the FIB can only be used at high temperatures. They also highlight the key factors that result in capacity decay during cycling.

Key words: Fluoride ion battery, solid electrolyte, liquid electrolyte, conversion-type electrode materials, intercalation-type electrode materials

CLC Number: