Chemical stability of sulfide solid-state electrolytes: stability toward humid air and compatibility with solvents and binders. Issue 3 (15th February 2022)

• Record Type: Journal Article
• Authors: Nikodimos, Yosef; Huang, Chen-Jui; Taklu, Bereket Woldegbreal; Su, Wei-Nien; Hwang, Bing Joe
• Is Part Of: Energy & environmental science. Volume 15:Issue 3(2022)
• Page Start: 991
• Page End: 1033
• Publication Date: 2022-02-15
• Subjects: Energy conversion -- Periodicals; Fuel switching -- Periodicals; Environmental sciences -- Periodicals; Environmental chemistry -- Periodicals; 333.79
• DOI: 10.1039/d1ee03032a
• Languages: English
• ISSNs: 1754-5692

Abstract

Abstract : Sulfide solid electrolyte (S-SE) based all-solid-state batteries (ASSBs) have received particular attention due to their outstanding ionic conductivity and higher energy density over conventional lithium-ion batteries. Abstract : Sulfide solid electrolyte (S-SE) based all-solid-state batteries (ASSBs) have received particular attention due to their outstanding ionic conductivity and higher energy density over conventional lithium-ion batteries. Nevertheless, their chemical instability toward air and their poor compatibility with solvents and binders are significant factors that impede the commercialization of S-SE-based ASSBs. This review aims to compile fundamental principles about the chemical stability of S-SEs and strategies designed to fabricate sulfide-based high energy density practical ASSBs covering their air stability and compatibility in slurry-based processes. Firstly, fundamental principles about the chemical stability of S-SEs towards air and their compatibility with solvents and binders are highlighted. Moreover, characterization techniques are examined to better understand the chemical stability of S-SEs. Secondly, the latest progress and effective strategies to improve the stability and compatibility of S-SEs are summarized. Encouraging demonstrations on improving the compatibility of S-SEs with solvents and binders are exemplified. Finally, challenges, future directions, and our perspectives on improving the chemical stability of S-SEs are presented.