Title:
METHOD FOR PRODUCING SULFIDE-BASED SOLID ELECTROLYTE
Document Type and Number:
WIPO Patent Application WO/2023/145658
Kind Code:
A1
Abstract:
The present invention pertains to a method for producing a sulfide-based solid electrolyte, the method comprising obtaining a sulfide-based solid electrolyte recycled product (B) from a liquid in which a sulfide-based solid electrolyte (A) in a sulfide-based solid electrolyte-containing mixture is dissolved in an organic solvent. The mixture contains the sulfide-based solid electrolyte (A) and other substances insoluble in the organic solvent. The method comprises: obtaining a solid-liquid mixture by immersing the mixture in the organic solvent to dissolve the sulfide-based solid electrolyte (A) while having the other substances remaining as solid components in the organic solvent; obtaining a dried sulfide-based solid electrolyte recycled product (B) by subjecting the solid-liquid mixture to solid-liquid separation, causing a sulfide-based solid electrolyte to be deposited out from an obtained liquid fraction, and vaporizing the organic solvent; and subjecting the recycled product (B) to a thermal treatment at 340°C or higher.
Inventors:
HIGASHI SEIJI (JP)
FUJII NAOKI (JP)
SEKI HIDENOBU (JP)
ANDO RYOTA (JP)
FUJII NAOKI (JP)
SEKI HIDENOBU (JP)
ANDO RYOTA (JP)
Application Number:
PCT/JP2023/001785
Publication Date:
August 03, 2023
Filing Date:
January 20, 2023
Export Citation:
Assignee:
AGC INC (JP)
International Classes:
H01M10/54; C01B25/14; H01B13/00; H01M4/62; H01M10/0562
Foreign References:
| JP2019057400A | 2019-04-11 | |||
| JP2021118030A | 2021-08-10 | |||
| JP2016058280A | 2016-04-21 |
Attorney, Agent or Firm:
EIKOH, P.C. (JP)
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