Invention Grant
- Patent Title: Ex-situ solid electrolyte interface modification using chalcogenides for lithium metal anode
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Application No.: US17194899Application Date: 2021-03-08
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Publication No.: US11462733B2Publication Date: 2022-10-04
- Inventor: Girish Kumar Gopalakrishnan Nair , Subramanya P. Herle , Karl J. Armstrong
- Applicant: Applied Materials, Inc.
- Applicant Address: US CA Santa Clara
- Assignee: Applied Materials, Inc.
- Current Assignee: Applied Materials, Inc.
- Current Assignee Address: US CA Santa Clara
- Agency: Patterson + Sheridan, LLP
- Main IPC: H01M4/36
- IPC: H01M4/36 ; H01M4/38 ; H01M4/62 ; H01M4/66 ; H01M4/04 ; H01M4/134 ; H01M4/02

Abstract:
Implementations described herein generally relate to metal electrodes, more specifically lithium-containing anodes, high performance electrochemical devices, such as secondary batteries, including the aforementioned lithium-containing electrodes, and methods for fabricating the same. In one implementation, an anode electrode structure is provided. The anode electrode structure comprises a current collector comprising copper. The anode electrode structure further comprises a lithium metal film formed on the current collector. The anode electrode structure further comprises a solid electrolyte interface (SEI) film stack formed on the lithium metal film. The SEI film stack comprises a chalcogenide film formed on the lithium metal film. In one implementation, the SEI film stack further comprises a lithium oxide film formed on the chalcogenide film. In one implementation, the SEI film stack further comprises a lithium carbonate film formed on the lithium oxide film.
Public/Granted literature
- US20210210752A1 EX-SITU SOLID ELECTROLYTE INTERFACE MODIFICATION USING CHALCOGENIDES FOR LITHIUM METAL ANODE Public/Granted day:2021-07-08
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