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US 2024/0243435 A1Published application
Ceramic binder composition for ceramic coated separator for lithium ion batteries, methods of producing same, and uses thereof
AssigneeHercules Incorporated
InventorsAlaa ALHARIZAH, Sung Gun Chu, Alan Edward Goliaszewski, David K. Hood, Shufu Peng, Michael A. A. Tallon, Bruce Fillipo
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Abstract
A ceramic binder composition is disclosed as well as a method of making and using the same. Additionally, a ceramic coated separator used in, for example but without limitation, lithium ion batteries is disclosed.
Claims9
A ceramic slurry composition, comprising:
- at least one ceramic particle selected from the group consisting of alumina, alumina oxide hydroxide, SiO2, BaSO4, TiO2, SnO2, CeO2, ZrO2, BaTiO3, Y2O3, B2O3, and combinations thereof;
- a binder comprising a polymer at least partially crosslinked with a crosslinking agent;
- wherein the crosslinking agent comprises a compound comprising at least two epoxide groups and is a water dispersible multi-epoxy resin;
- and
- wherein the polymer is selected from the group consisting of (a) a copolymer produced from monomers comprising vinylpyrrolidone and dimethylaminopropyl methacrylamide (DMAPMA), (b) a copolymer produced from monomers comprising vinylpyrrolidone and dimethylaminoethyl methacrylate (DMAEMA), (c) a copolymer produced from monomers comprising vinylpyrrolidone, vinylcaprolactam, and DMAEMA, (d) a copolymer produced from monomers comprising vinylpyrrolidone, vinylcaprolactam, and DMAPMA, and (e) combinations thereof;
- a solvent.
3 more elements
A ceramic coated separator for an electrochemical cell, comprising:
- a ceramic binder composition comprising:
- at least one ceramic particle selected from the group consisting of alumina, alumina oxide hydroxide, SiO2, BaSO4, TiO2, SnO2, CeO2, ZrO2, BaTiO3, Y2O3, B2O3, and combinations thereof;
- and
- a binder comprising a polymer at least partially crosslinked with a crosslinking agent,
- wherein the polymer is selected from the group consisting of (a) a copolymer produced from monomers comprising vinylpyrrolidone and dimethylaminopropyl methacrylamide (DMAPMA), (b) a copolymer produced from monomers comprising vinylpyrrolidone and dimethylaminoethyl methacrylate (DMAEMA), (c) a copolymer produced from monomers comprising vinylpyrrolidone, vinylcaprolactam, and DMAEMA, (d) a copolymer produced from monomers comprising vinylpyrrolidone, vinylcaprolactam, and DMAPMA, and (e) combinations thereof;
- and
- wherein the crosslinking agent comprises a compound comprising at least two epoxide groups and is a water dispersible multi-epoxy resin;
- and
- a separator;
- wherein the ceramic binder composition is in contact with at least a portion of the separator.
7 more elements
An electrochemical cell, comprising:
- a ceramic coated separator for an electrochemical cell, comprising:
- a ceramic binder composition comprising:
- at least one ceramic particle selected from the group consisting of alumina, alumina oxide hydroxide, SiO2, BaSO4, TiO2, SnO2, CeO2, ZrO2, BaTiO3, Y2O3, B2O3, and combinations thereof;
- and
- a binder comprising a polymer at least partially crosslinked with a crosslinking agent,
- wherein the polymer is selected from the group consisting of (a) a copolymer produced from monomers comprising vinylpyrrolidone and dimethylaminopropyl methacrylamide (DMAPMA), (b) a copolymer produced from monomers comprising vinylpyrrolidone and dimethylaminoethyl methacrylate (DMAEMA), (c) a copolymer produced from monomers comprising vinylpyrrolidone, vinylcaprolactam, and DMAEMA, (d) a copolymer produced from monomers comprising vinylpyrrolidone, vinylcaprolactam, and DMAPMA, and (e) combinations thereof;
- and
- wherein the crosslinking agent comprises a compound comprising at least two epoxide groups and is a water dispersible multi-epoxy resin;
- and
- a separator;
- wherein the ceramic binder composition is in contact with at least a portion of the separator;
- at least one cathode;
- and
- at least one anode.
11 more elements
Dependencies are inferred from the claim text.