# US 2023/0265291 A1 · Coating liquid, composite particle manufacturing method, and composite particle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2023/0265291 A1 - Document ID: US20230265291A1 - Status: Published application - Kind: A1 - Application number: 18/068,553 - Filed: 2022-12-20 - Published: 2023-08-24 - Earliest claimed: 2022-02-22 - Assignees: Toyota Jidosha Kabushiki Kaisha - Applicants: Toyota Jidosha Kabushiki Kaisha - Inventors: Masaru KUBOTA - Web page: https://patentgrep.com/patent/US20230265291A1 ## CPC - C09D 1/00: Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances - C09D 7/20: Diluents or solvents - H01M 4/13: Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof - H01M 4/36: Selection of substances as active materials, active masses, active liquids - H01M 4/366: {as layered products} - H01M 4/5825: {Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines} - H01M 4/62: Selection of inactive substances as ingredients for active masses, e.g. binders, fillers - H01M 4/628: {Inhibitors, e.g. gassing inhibitors, corrosion inhibitors} - H01M 10/052: Li-accumulators - H01M 10/0525: Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries - H01M 10/0562: Solid materials - H01M 2300/0068: inorganic - Y02E 60/10: Energy storage using batteries - C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D) - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract The coating liquid includes a solute and a solvent. The solute comprises a phosphoric acid compound. “I0/(I0+I1+I2)” is 0.7 or less. In the 31P-NMR spectrum, I0 indicates the area of the signal from the PO4, Q0 unit, I1 indicates the area of the signal from the PO4, Q1 unit, and I2 indicates the area of the signal from the PO4, Q2 unit. ## Claims ### Claim 1 A coating liquid comprising: a solute; and a solvent, wherein the solute includes a phosphoric acid compound, wherein a relationship of the following formula (1) is satisfied: {I0/(I0+I1+I2)}≤0.7 (1), wherein in the above formula (1), I0 indicates an area of a signal from a Q0 unit of PO4 in a 31P-NMR spectrum, I1 indicates an area of a signal from a Q1 unit of PO4 in the 31P-NMR spectrum, and I2 indicates an area of a signal from a Q2 unit of PO4 in the 31P-NMR spectrum. ### Claim 2 (depends on 1) The coating liquid according to claim 1, wherein a relationship of the following formula (2) is further satisfied: 0.17≤{I2/(I0+I1+I2)} (2). ### Claim 3 (depends on 1) The coating liquid according to claim 1, wherein a relationship of the following formula (3) is further satisfied: I0