Patent ID: 11923503
Assignee: SOLID POWER OPERATING, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C  Y | IPC C  H

Claim 7:
8. A method for producing a sulfide solid electrolyte material including glass ceramics comprising Li, T, X and A wherein T is at least one element selected from a group consisting of P, As, Si, Ge, Al, Sb, W, and B; X is at least one element selected from a group consisting of F, Cl, Br, I and N; A is one or more of elements S or Se; the method comprising:
(a) mixing and milling a raw material composition containing an element A or compound Li2A, an element T or sulfide of T, and a compound LiX or Li3N to render the mixture an amorphous sulfide glass under x-ray diffraction; and
(b) heating the sulfide glass at a heat treatment temperature equal to or greater than a crystallization temperature of the sulfide glass to synthesize the glass ceramics having peaks at 14.9°±0.50°, 20.4°±0.50°, and 25.4°±0.50° in X-ray diffraction measurement with Cu—Kα(1,2)=1.5418 Å, wherein the peak at 20.4°±0.50° has the highest intensity in a range from 5° to 40° in the X-ray diffraction measurement.