Solid state electrolyte and method of production
AssigneeSolid Power Operating, Inc.
InventorsClint R. Bickmore, Brian E. Francisco, Samuel Oberwetter, Joshua Buettner-Garrett, Benjamin A. Carlson
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Abstract
A process for preparing a solid electrolyte that includes mixing a lithium source with a sulfur source and a compound containing phosphorous and sulfur to form a composite, then heating the composite to the melting point of the compound containing phosphorous and sulfur to form the solid electrolyte material. A solid electrolyte material prepared by the process, wherein the solid electrolyte material is of formula I, which is Li(7-y-z)PS(6-y-z)X(y)W(z) wherein X and W are individually selected from F, Cl, Br, and I; where y and z each individually range from 0 to 2; and where y+z ranges from 0 to 2.
Claims17
A process for preparing a solid electrolyte comprising:
- a) mixing one or more lithium sources with a sulfur source and a compound containing phosphorous and sulfur to form a homogeneous composite, wherein the compound containing phosphorus and sulfur is present in a molar excess as compared to the sulfur source and the one or more lithium sources;
- and
- b) heating the homogeneous composite to a melting point of the compound containing phosphorous and sulfur to form the solid electrolyte to form a molten reactive flux, wherein the compound containing phosphorous and sulfur is a liquid and the one or more lithium sources and the sulfur source are solid.
Dependencies are inferred from the claim text.