Li10GeP2S12 solid electrolytes synthesised via liquid-phase methods

Kazuhiro Hikima; Kaito Ogawa; Hirotada Gamo; Atsunori Matsuda

doi:10.1039/d3cc01018j

Li₁₀GeP₂S₁₂ solid electrolytes synthesised via liquid-phase methods

Chem Commun (Camb). 2023 May 25;59(43):6564-6567. doi: 10.1039/d3cc01018j.

Authors

Kazuhiro Hikima¹, Kaito Ogawa¹, Hirotada Gamo¹, Atsunori Matsuda¹

Affiliation

¹ Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi 441-8580, Japan. hikima@ee.tut.ac.jp.

PMID: 37165722
DOI: 10.1039/d3cc01018j

Abstract

Li₁₀GeP₂S₁₂ solid electrolytes for all-solid-state batteries were synthesised through liquid-phase shaking, which is a suspension synthesis method, in 1 d. Additionally, Li₁₀GeP₂S₁₂ solid electrolytes were prepared in 7.5 h, which is the fastest synthesis time, through solution synthesis using excess sulfur and a mixed solvent of acetonitrile, tetrahydrofuran, and ethanol. These Li₁₀GeP₂S₁₂ solid electrolytes exhibited an ionic conductivity of 1.6 × 10^-3 S cm^-1, which is the highest ionic conductivity of previous studies of liquid phase synthesis. Therefore, Li₁₀GeP₂S₁₂ solid electrolytes with high ionic conductivity can be rapidly synthesised via liquid-phase methods.