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

• Published in: Chemical research in Chinese universities Vol. 36; no. 3; pp. 377 - 385
• Main Authors: Yuan, Hong, Liu, Jia, Lu, Yang, Zhao, Chenzi, Cheng, Xinbing, Nan, Haoxiong, Liu, Quanbing, Huang, Jiaqi, Zhang, Qiang
• Format: Journal Article
• Language: English
• Published: Changchun Jilin University and The Editorial Department of Chemical Research in Chinese Universities 01.06.2020; Springer Nature B.V
• Subjects: Analytical Chemistry; Chemistry; Chemistry and Materials Science; Chemistry/Food Science; Electrolytes; Flux density; Inorganic Chemistry; Lithium; Lithium ions; Mass production; Molten salt electrolytes; Organic Chemistry; Physical Chemistry; Rechargeable batteries; Review; Solid electrolytes; Solid state; All-solid-state battery; Sulfide electrolyte; Energy material; Composite electrode; Liquid-involved materials processing
• DOI: 10.1007/s40242-020-0103-5
• ISSN: 1005-9040

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.