▎ 摘　　要

NOVELTY - Bio-electrode composition comprises reaction composite which further comprises monomer with ionic functional group and carbon particle, where reaction composite comprises carbon particle bonded to monomer which have structure selected from salts of ammonium, lithium, sodium, potassium, and silver formed with any of fluorosulfonic acid, fluorosulfonimide, and N-carbonyl-fluorosulfonamide. USE - Composition used for manufacturing bio-electrode (claimed), for detecting physical conditions such as heart rate by electric signal transmitted from skin; used in medical wearable device to make no changes in electric conductivity even in long-time use and cause no skin allergy. ADVANTAGE - The bio-electrode composition enables to provide high impedance and high resistance to skin during electrical conduction, where ionic liquid is thermally and chemically stable, and provides wide battery applications; is excellent in electric conductivity and biocompatibility, light-weight, and manufacture at low cost; prevents significant reduction in electric conductivity even when bio-electrode is wet with water or dry. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) a bio-electrode, which comprises electro-conductive base material and living body contact layer formed on electro-conductive base material, where living body contact layer, which is cured product of bio-electrode composition; (2) a method for manufacturing bio-electrode, which have electro-conductive base material and living body contact layer formed on electro-conductive base material, which involves: (a) applying bio-electrode composition on electro-conductive base material; and (b) curing bio-electrode composition to form living body contact layer; (3) a reaction composite, which comprises monomer with ionic functional group and carbon particle, where reaction composite, which comprises carbon particle bonded to monomer with structure selected from salts of ammonium, lithium, sodium, potassium, and silver formed with any of fluorosulfonic acid, fluorosulfonimide, and N-carbonyl-fluorosulfonamide.