The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 04, 2023
Filed:
Mar. 18, 2020
Mitsui Mining & Smelting Co., Ltd., Tokyo, JP;
Abstract
A method for producing a sulfide solid electrolyte includes a firing step of firing a raw material containing LiS in a hydrogen sulfide-containing atmosphere at a temperature of 300° C. or higher, LiS having a purity of 50 to 90% by mass at the start of firing. The LiS may contain impurities including at least one of LiOH, LiO, LiHCO, and LiCO. In the firing step, it is preferable that a concentration of a hydrogen sulfide in the hydrogen sulfide-containing atmosphere is 50 volume % or more. It is preferable that the raw material further contains PSand LiX (X represents at least one type of elemental halogen), and the sulfide solid electrolyte has an argyrodite-type crystal structure.