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US 12,735,318 B2Granted
Sulfide-based composite solid state electrolytes and related methods
AssigneeRivian IP Holdings, LLC
InventorsParameswara Rao Chinnam, Forrest Stephen Gittleson, Asma Sharafi, Chen Chen, Hui Dong, Sonika Rajput, Terri Chai Lin, Saravanan Kuppan, Ezhiylmurugan Rangasamy
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Abstract
Particular embodiments may provide a solid sulfide electrolyte. Specifically, disclosed herein are methods and systems that can include feeding polymer precursors and sulfides to an extruder, kneading the polymer precursors and the sulfide in the extruder to form a sulfide-polymer composite that includes polyurethane and sulfide, and extruding the sulfide-polymer composite to form a solid sulfide electrolyte.
Claims20
A method, comprising:
- feeding a polyol, an isocyanate, and a sulfide into an extruder, wherein the polyol, the isocyanate, and the sulfide are fed into different zones of the extruder;
- kneading the polyol, the isocyanate, and the sulfide in the extruder to form a sulfide-polymer composite comprising thermoplastic polyurethane and the sulfide;
- and
- extruding the sulfide-polymer composite to form a solid electrolyte layer,
- wherein the extruder is a heated twin screw extruder and all temperatures along a length of a screw barrel of the heated twin screw extruder are between 80-120° C.
2 more elements
Dependencies are inferred from the claim text.