Conductive composition for coating a current collector for a battery or an electrical double layer capacitor, current collector for battery or electrical double layer capacitor, battery, and electrical double layer capacitor

A conductive composition for coating a current collector for a battery or an electrical double layer capacitor, the conductive composition comprising a vinylsilane copolymer, a polycarboxylic acid (excluding the vinylsilane copolymer), and a conductive auxiliary,

• the vinylsilane copolymer being represented by the following formula (1):
• wherein U represents a unit represented by the following formula (2):
• wherein X represents a single bond or a bonding chain (excluding oxygen),
• each of R2 to R4 independently represents a group selected from the group consisting of:
• —OR5 (wherein R5 represents a group selected from the group consisting of H, a C1-C6 alkyl group, and a group derived from a cation capable of constituting an electrolyte for a battery or electrical double layer capacitor);
• a C1-C6 alkyl group;
• and
• a halogen group, and
• each of R21 to R23 independently represents H or a C1-C6 alkyl group,
• V represents a unit derived from a vinyl monomer having at least an active hydrogen group (excluding the U),
• m represents a number of from 1 to 10,000, and
• n represents a number of from 20 to 100,000 ,
• wherein the ratio of m to n (min) is 0.0001 to 1.