Sulfide-based solid electrolyte and method for producing the same

JP7861794B2Active Publication Date: 2026-05-19AGC INC
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Patent Information

Application Number
JP2023551442
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2021-09-30
Filing Date
2022-09-22
Publication Date
2026-05-19
Estimated Expiration
2042-09-22

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Abstract

The present invention relates to a sulfide solid electrolyte used for a lithium ion secondary battery, containing an argyrodite type crystal phase that contains Li, P, S, and Ha, where [Ha] / [P] (atomic ratio) is 1.3 or greater, and in a 35Cl-NMR spectrum measured under specific conditions, SB / SA using an area intensity SA of a peak observed at 0 to 30 ppm and an area intensity SB of a peak observed at –150 to 0 ppm is 3.5 or greater, or a peak is observed at –150 to 0 ppm and a peak is not observed at 0 to 30 ppm.
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