QuantumScape Corporation
ALL SULFIDE ELECTROCHEMICAL CELL

Abstract:

Provided herein are processes for making, and methods of using, solid-state batteries which include sulfide electrolytes in the solid-state separator and in the cathode as a catholyte. The process comprises providing at least two layered stacks, and compressing the at least two layered stacks at a pressure between 30 and 5000 MPa and at a temperature of 50.degree. C. to 250.degree. C. Also set forth herein are electrochemical cells and devices made by these processes.