Energy Storage Science and Technology ›› 2022, Vol. 11 ›› Issue (5): 1368-1382.doi: 10.19799/j.cnki.2095-4239.2021.0513

• Energy Storage Materials and Devices • Previous Articles     Next Articles

Research progress of Li3PS4 solid electrolyte

Chaochao WEI1,2(), Chuang YU1(), Zhongkai WU1,2, Linfeng PENG1,3, Shijie CHENG1, Jia XIE1()   

  1. 1.State Key Laboratory of Strong Electromagnetic Engineering and New Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology
    2.School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology
    3.School of Physics, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China
  • Received:2021-10-08 Revised:2021-11-08 Online:2022-05-05 Published:2022-05-07
  • Contact: Chuang YU, Jia XIE E-mail:weichaochao@hust.edu.cn;cyu2020@hust.edu.cn;xiejia@hust.edu.cn

Abstract:

All-solid-state lithium battery has become one of the most promising candidates to replace the traditional lithium battery utilizing liquid organic electrolytes due to its high safety and high energy density. The solid electrolyte is the crucial component of all-solid-state lithium battery, and sulfide electrolytes are attractive among solid electrolytes due to their high ionic conductivities and good mechanical ductility. Li3PS4 solid electrolyte with high ionic conductivity, wide electrochemical windows and low cost has been attracted significant attention in recent years. However, its poor air/moisture stability and low compatibility towards cathode/anode materials limit its large-scale application in high-performance all-solid-state lithium batteries. In this paper, the structural mechanism and preparation route of Li3PS4 solid electrolyte were reviewed by discussing the recent literature on Li3PS4 solid electrolyte. Then, the strategies applied to enhance the ionic conductivity, improve the chemical/electrochemical stability, and strengthen the mechanical properties of Li3PS4 are summarized, and the applications of Li3PS4 electrolytes in solid-state batteries combined with different kinds of electrode materials are reviewed. Based on the above analysis, this paper also pointed out the shortcomings of the current Li3PS4 solid electrolyte and prospected the research focus and development direction of Li3PS4 and other sulfide electrolytes in the future.

Key words: solid electrolyte, Li3PS4, all-solid-state battery, electrochemical performance, solid state lithium sulfur battery, conductivity

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