Invention Grant
- Patent Title: Thin-film lithium ion battery with fast charging speed
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Application No.: US15675296Application Date: 2017-08-11
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Publication No.: US10553898B2Publication Date: 2020-02-04
- Inventor: Joel P. de Souza , Yun Seog Lee , Devendra K. Sadana
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Scully, Scott, Murphy & Presser, P.C.
- Agent L. Jeffrey Kelly, Esq.
- Main IPC: H01M10/0562
- IPC: H01M10/0562 ; H01M4/04 ; H01M4/131 ; H01M4/1391 ; H01M4/525 ; H01M10/04 ; H01M10/0525 ; H01M10/0585

Abstract:
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.
Public/Granted literature
- US20190051930A1 THIN-FILM LITHIUM ION BATTERY WITH FAST CHARGING SPEED Public/Granted day:2019-02-14
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