3 years ago

All-solid-state disordered LiTiS2 pseudocapacitor

All-solid-state disordered LiTiS2 pseudocapacitor
Seul Cham Kim, Chunmei Ban, Simon Hafner, Kyu Hwan Oh, Yong Hyun Kim, Viet-Duc Le, Sang Sub Han, Justin[space]M. Whiteley, Se-Hee Lee
A lithium charge storage mechanism is discovered at the interface of nano-crystallites of LiTiS2 in the solid state. The surface titanium atoms can be reduced reversibly at higher voltages. Electrochemically, this appears as a pseudocapacitive effect boosting capacity greater than theoretical at high rate with no liquid electrolyte.
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