Invention Grant
- Patent Title: Method and system for water soluble weak acidic resins as carbon precursors for silicon-dominant anodes
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Application No.: US17577798Application Date: 2022-01-18
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Publication No.: US11923531B2Publication Date: 2024-03-05
- Inventor: Younes Ansari , Liwen Ji , Benjamin Park
- Applicant: Enevate Corporation
- Applicant Address: US CA Irvine
- Assignee: Enevate Corporation
- Current Assignee: Enevate Corporation
- Current Assignee Address: US CA Irvine
- Agency: Mcandrews, Held & Malloy, Ltd.
- Main IPC: H01M4/134
- IPC: H01M4/134 ; H01M4/02 ; H01M4/04 ; H01M4/1395 ; H01M4/36 ; H01M4/38 ; H01M4/587 ; H01M4/66 ; H01M10/0525

Abstract:
Systems and methods for water soluble weak acidic resins as carbon precursors for silicon-dominant anodes may include an electrode coating layer on a current collector, where the electrode coating layer is formed from silicon and pyrolyzed water-soluble acidic polyamide imide as a primary resin carbon precursor. The electrode coating layer may include a pyrolyzed water-based acidic polymer solution additive. The polymer solution additive may include one or more of: polyacrylic acid (PAA) solution, poly (maleic acid, methyl methacrylate/methacrylic acid, butadiene/maleic acid) solutions, and water soluble polyacrylic acid. The electrode coating layer may include conductive additives. The current collector may include a metal foil, where the metal current collector includes one or more of a copper, tungsten, stainless steel, and nickel foil in electrical contact with the electrode coating layer. The electrode coating layer may be more than 70% silicon.
Public/Granted literature
- US20220140314A1 METHOD AND SYSTEM FOR WATER SOLUBLE WEAK ACIDIC RESINS AS CARBON PRECURSORS FOR SILICON-DOMINANT ANODES Public/Granted day:2022-05-05
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