Invention Grant
- Patent Title: Electrochemical cell and method of manufacturing
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Application No.: US16131875Application Date: 2018-09-14
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Publication No.: US11309539B2Publication Date: 2022-04-19
- Inventor: Fang Dai , Meinan He , Shuru Chen , Mei Cai
- Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Applicant Address: US MI Detroit
- Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee Address: US MI Detroit
- Agency: Harness, Dickey & Pierce, P.L.C.
- Main IPC: H01M4/36
- IPC: H01M4/36 ; H01M10/05 ; H01M4/48 ; H01M4/58 ; H01M4/38 ; H01M4/1395 ; H01M4/04 ; H01M10/054 ; H01M4/134 ; H01M4/66 ; H01M4/74 ; H01M10/052 ; H01M4/80

Abstract:
An electrochemical cell comprising an alkali metal negative electrode layer physically and chemically bonded to a surface of a negative electrode current collector via an intermediate metal chalcogenide layer. The intermediate metal chalcogenide layer may comprise a metal oxide, a metal sulfide, a metal selenide, or a combination thereof. The intermediate metal chalcogenide layer may be formed on the surface of the negative electrode current collector by exposing the surface to a chalcogen or a chalcogen donor compound. Then, the alkali metal negative electrode layer may be formed on the surface of the negative electrode current collector over the intermediate metal chalcogenide layer by contacting at least a portion of the metal chalcogenide layer with a source of sodium or potassium to form a layer of sodium or potassium on the surface of the negative electrode current collector over the metal chalcogenide layer.
Public/Granted literature
- US20190207211A1 ELECTROCHEMICAL CELL AND METHOD OF MANUFACTURING Public/Granted day:2019-07-04
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