Solid electrolyte material and solid-state battery made therewith
AssigneeSolid Power Operating, Inc.
InventorsBrian E. Francisco, Sean P. Culver
Life of this patent
Estimating the term…
Abstract
A solid electrolyte material comprises Li, T, X and A wherein T is at least one of Sb, P, As, Si, Ge, Al, and B; X is one or more halogens or N; A is one or more of S or Se. The solid electrolyte material has peaks at 2θ=14.5°±0.50°, 16.8°±0.50°, 23.9°±0.50°, 28.1°±0.50°, and 32.5°±0.50 in X-ray diffraction measurement with Cu-Kα(1,2)=1.54064 Å and may include glass ceramic and/or mixed crystalline phases.
Claims29
A solid electrolyte material comprising Li, T, X and A, wherein T comprises Sb;
- X comprises one or more halogens, pseudo-halogens, or N;
- A comprises one or more of S or Se;
- and wherein the solid electrolyte material has peaks at 2θ=14.5°±0.50°, 16.8°±0.50°, 23.9°±0.50°, 28.1°±0.50°, and 32.5°±0.50 in X-ray diffraction measurement with Cu-Kα(1,2)=1.54064 Å.
A lithium solid-state battery comprising a positive electrode active material layer containing a positive electrode active material;
- a negative electrode active material layer containing a negative electrode active material;
- and a solid electrolyte layer disposed between the positive electrode active material layer and the negative electrode active material layer, wherein at least one of the positive electrode active material layer, the negative electrode active material layer, and the solid electrolyte layer comprises a solid electrolyte material comprising Li, T, X and A, wherein T comprises Sb;
- X comprises one or more halogens, pseudo-halogens, or N;
- A comprises one or more of S or Se;
- and wherein the solid electrolyte material has peaks at 2θ=14.5°±0.50°, 16.8°±0.50°, 23.9°±0.50°, 28.1°±0.50°, and 32.5°±0.50 in X-ray diffraction measurement with Cu-Kα(1,2)=1.54064 Å.
A method for producing a sulfide solid electrolyte material including glass ceramics comprising:
- Li, T, X and A wherein T is at least one of Sb, P, As, Si, Ge, Al, B, and W;
- X is one or more halogens, pseudo-halogens, or N;
- A is one or more of S or Se;
- the method comprising 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 amorphous under x-ray diffraction;
- and/or 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 2θ=14.5°±0.50°, 16.8°±0.50°, 23.9°±0.50°, 28.1°±0.50°, and 32.5°±0.50 in X-ray diffraction measurement with Cu-Kα(1,2)=1.54064 Å.
Dependencies are inferred from the claim text.