Chemical Research in Chinese Universities ›› 2020, Vol. 36 ›› Issue (3): 377-385.doi: 10.1007/s40242-020-0103-5

• Reviews • Previous Articles     Next Articles

Toward Practical All-solid-state Batteries with Sulfide Electrolyte: A Review

YUAN Hong1,2, LIU Jia2,3, LU Yang2, ZHAO Chenzi2, CHENG Xinbing2, NAN Haoxiong4, LIU Quanbing4, HUANG Jiaqi1, ZHANG Qiang2   

  1. 1. Advanced Research Institute of Multidisciplinary Science, Beijing Institute of Technology, Beijing 100081, P. R. China;
    2. Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, P. R. China;
    3. Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, P. R. China;
    4. School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
  • Received:2020-04-11 Revised:2020-05-01 Online:2020-06-01 Published:2020-05-30
  • Contact: ZHANG Qiang E-mail:zhang-qiang@mails.tsinghua.edu.cn
  • Supported by:
    Supported by the National Natural Science Foundation of China(Nos.21808124, 21825501, U1801257), the National Key Research and Development Program of China(Nos.2016YFA0202500, 2016YFA0200102) and the China Postdoctoral Science Foundation(No.2019T120098).

Abstract: Sulfide-based solid-state electrolytes with ultrahigh lithium ion conductivities have been considered as the most promising electrolyte system to enable practical all-solid-state batteries. However, the practical applications of the sulfide-based all-solid-state batteries are hindered by severe interfacial issues as well as large-scale material preparation and battery fabrication problems. Liquid-involved interfacial treatments and preparation processes compatible with current battery manufacturing capable of improving electrode/electrolyte interface contacts and realizing the mass production of sulfide electrolytes and the scalable fabrication of sulfide-based battery component have attracted considerable attention. In this perspective, the current advances in liquid-involved treatments and processes in sulfide-based all-solid-state batteries are summarized. Then relative chemical mechanisms and existing challenges are included. Finally, future guidance is also proposed for sulfide-based batteries. Focusing on the sulfide-based all-solid-state batteries, we aim at providing a fresh insight on understandings towards liquid-involved processes and promoting the development of all-solid-state batteries with higher energy density and better safety.

Key words: Sulfide electrolyte, All-solid-state battery, Composite electrode, Liquid-involved materials processing, Energy material