University of Colorado

Thomas A Yersak

Se-Hee Lee

Conrad Stoldt

An all-solid-state lithium battery, thermo-electromechanical activation of LiS in sulfide based solid state electrolyte with transition metal sulfides, and electromechanical evolution of a bulk-type all-solid-state iron sulfur cathode, are disclosed. An example all-solid-state lithium battery includes a cathode having a transition metal sulfide mixed with elemental sulfur to increase electrical conductivity. In one example method of in-situ electromechanically synthesis of Pyrite (FeS) from Sulfide (FeS) and elemental sulfur (S) precursors for operation of a solid-state lithium battery, FeS+S composite electrodes are cycled at moderately elevated temperatures.

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San Diego, CA, United States of America

Thomas A Yersak