Invention Application
- Patent Title: NEGATIVE ELECTRODE WATERBORNE SLURRY COMPOSITIONS FOR LITHIUM ION ELECTRICAL STORAGE DEVICES
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Application No.: PCT/US2022/074576Application Date: 2022-08-05
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Publication No.: WO2023059953A1Publication Date: 2023-04-13
- Inventor: CROWE, Adam, Jacob , ORLER, Haley, Lynn , SISCO, Scott, William , DIMEGLIO, John, Leonard
- Applicant: PPG INDUSTRIES OHIO, INC.
- Applicant Address: 3800 West 143rd Street
- Assignee: PPG INDUSTRIES OHIO, INC.
- Current Assignee: PPG INDUSTRIES OHIO, INC.
- Current Assignee Address: 3800 West 143rd Street
- Agency: MEYERS, Diane, R. et al.
- Priority: US63/252,634 2021-10-06
- Main IPC: H01M4/04
- IPC: H01M4/04 ; H01M4/139 ; H01M4/62 ; H01M10/0525 ; H01M4/02 ; H01M2004/027 ; H01M4/0404 ; H01M4/622
Abstract:
The present disclosure provides a negative electrode waterborne slurry composition comprising a binder; optionally a dispersant comprising a copolymer comprising (a) constitutional units comprising the residue of a monomer comprising a nitrogen-containing heterocycle and (b) constitutional units comprising the residue of an alkyl ester of a (meth)acrylic acid and/or the residue of an acid-functional ethylenically unsaturated monomer, wherein the dispersant comprises 1% to 50% by weight of constitutional units comprising the residue of a monomer comprising a nitrogen-containing heterocycle and the % by weight is based on the total weight of the dispersant; a negative electrode active material; optionally a poly(2-alkyl or aryl oxazoline) polymer, wherein at least one of the dispersant and the poly(2-alkyl or aryl oxazoline) polymer are present; and an aqueous medium. Also disclosed are negative electrodes and electrical storage devices.
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