Scully, Scott, Murphy & Presser, P.C.
Thin-film lithium ion battery with fast charging speed
A solid-state lithium-based battery having fast charging and recharging speeds (above 3 C) is provided by including a nitrogen-enriched lithiated cathode material surface layer between the lithiated cathode material layer and the lithium-based solid-state electrolyte layer. The nitrogen-enriched lithiated cathode material surface layer can be formed by introducing nitrogen into a lithiated cathode material. The nitrogen can be introduced during the final stage of a deposition process or by utilizing a different process, such as, for example, thermal nitridation, than a deposition process.
International Business Machines Corporation
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Joel P. Devendra K. Yun Seog
de Souza Sadana Lee