Coating liquid, conductive coating film, electrode plate for electricity storage device, and electricity storage device

摘要

A coating formulation for forming a conductive coating film on a surface of a collector for constructing an electrode plate for an electricity storage device is provided. The coating formulation contains (A) a polymeric acid, (B) a vinyl carboxylate copolymer represented by the following formula (1):;
wherein R1 is selected from the group consisting of H, Na, organic groups derived from vinyl carboxylate monomers, and cations capable of forming electrolytes for the electricity storage device, R2 to R4 are independently selected from the group consisting of H, Na, C1-C6 alkyl groups, and cations capable of forming electrolytes for the electricity storage device, and a ratio (m/n) of m to n is from 0.0001 to 1, (C) a conductive material, and (D) a polar solvent.

主权项

1. A coating formulation for forming a conductive coating film on a surface of a collector for constructing an electrode plate for an electricity storage device, comprising:
(A) a polymeric acid; (B) a vinyl carboxylate copolymer represented by the following formula (1): wherein R1 is selected from the group consisting of H, Na, organic groups derived from vinyl carboxylate monomers, and cations capable of forming electrolytes for the electricity storage device, R2 to R4 are independently selected from the group consisting of H, Na, C1-C6 alkyl groups, and cations capable of forming electrolytes for the electricity storage device, and a ratio (m/n) of m to n is from 0.0001 to 1; (C) a conductive material; and (D) a polar solvent; wherein a content of the polymeric acid per part by mass of the conductive material is from 0.1 to 3 parts by mass, a content of the vinyl carboxylate copolymer per part by mass of the conductive material is from 0.1 to 3 parts by mass, and a solids concentration is from 0.02 to 40 mass %.