Lithium ion conducting sulfide glass fabrication
AssigneePolyPlus Battery Company
InventorsSteven J. Visco, Alexei Petrov, Valentina Loginova, Vitaliy Nimon, Yevgeniy S. Nimon, Bruce D. Katz
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Abstract
Preparation of anhydrous lithium sulfide (Li2S) purified suitably for applications in advanced batteries, and, in particular, for synthesis of solid electrolytes based on Li2S, including sulfide solid electrolytes of the type that may be described as crystalline (e.g., polycrystalline), amorphous (e.g., glass) and combinations thereof, such as sulfide glass-ceramic solid electrolyte materials.
Claims15
A method of making lithium sulfide for use as a precursor material for making lithium ion conducting sulfide solid electrolyte materials, the method comprising the steps of:
- i) providing a liquid lithium precursor;
- ii) providing a liquid sulfur precursor;
- and iii) combining the precursors in a dry inert atmosphere to reactively precipitate a lithium sulfide material for use as a precursor material for processing lithium ion conducting sulfide solid electrolyte material;
- wherein one or both of the lithium and/or sulfur precursor is a liquid suspension of colloid composed of undissolved active species;
- wherein the liquid sulfur precursor comprises a solid organic compound comprising reactive sulfur atoms;
- wherein the solid organic compound is thiophene.
Dependencies are inferred from the claim text.