Invention Grant
- Patent Title: Diffusion barrier films enabling the stability of lithium
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Application No.: US17059573Application Date: 2019-06-18
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Publication No.: US11876231B2Publication Date: 2024-01-16
- Inventor: Dmitri A. Brevnov
- 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
- International Application: PCT/US2019/037728 2019.06.18
- International Announcement: WO2019/246095A 2019.12.26
- Date entered country: 2020-11-30
- Main IPC: H01M4/66
- IPC: H01M4/66 ; C23C14/06 ; C23C14/16 ; C23C14/34 ; C23C14/56 ; C23C28/00 ; H01M4/04 ; H01M4/40

Abstract:
Lithium-containing anodes, high performance electrochemical devices, such as secondary batteries, including the aforementioned lithium-containing electrodes, and methods for fabricating the same are provided. In one implementation, an anode electrode is provided. The anode electrode comprises a first diffusion barrier layer formed on a copper foil. The first diffusion barrier layer comprises titanium (Ti), molybdenum (Mo), tungsten (W), zirconium (Zr), hafnium (H), niobium (Nb), tantalum (Ta), or combinations thereof. The anode electrode further comprises a wetting layer formed on the first diffusion barrier layer. The wetting layer is selected from silicon (Si), tin (Sn), aluminum (Al), germanium (Ge), antimony (Sb), lead (Pb), bismuth (Bi), gallium (Ga), indium (In), zinc (Zn), cadmium (Cd), magnesium (Mg), oxides thereof, nitrides thereof, or combinations thereof. The anode electrode further comprises a lithium metal layer formed on the wetting layer.
Public/Granted literature
- US20210218032A1 DIFFUSION BARRIER FILMS ENABLING THE STABILITY OF LITHIUM Public/Granted day:2021-07-15
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