Bio-electrode composition, bio-electrode, and method for manufacturing a bio-electrode

A bio-electrode composition comprising:

• a resin containing a main chain having a urethane moiety and two side chains each having a silicon-containing group;
• and
• an electro-conductive material,
• wherein the electro-conductive material is a polymer compound having one or more fragments selected from the group consisting of fluorosulfonic acid salts shown by the following formulae (1)-1 and (1)-2, sulfonimide salts shown by the following formula (1)-3, and sulfonamide salts shown by the following formula (1)-4,
• wherein Rf1 and Rf2 each represent a hydrogen atom, a fluorine atom, a trifluoromethyl group, or an oxygen atom, provided that when Rf1 represents an oxygen atom, Rf2 also represents an oxygen atom to form a carbonyl group together with a carbon atom bonded therewith;
• Rf3 and Rf4 each represent a hydrogen atom, a fluorine atom, or a trifluoromethyl group;
• provided that one or more fluorine atoms are contained in Rf1 to Rf4;
• Rf5, Rf6, and Rf7 each represent a fluorine atom, or a linear or branched alkyl group having 1 to 4 carbon atoms, provided that one or more fluorine atoms are contained;
• X+ represents a sodium ion, a potassium ion, or a cation having an ammonium ion structure shown by the following formula (1)-5;
• and “m” is an integer of 1 to 4,
• wherein R1 to R4 each represent a hydrogen atom, a linear, branched, or cyclic alkyl group having 1 to 20 carbon atoms, an alkenyl group having 2 to 14 carbon atoms, or an alkynyl group having 2 to 5 carbon atoms, optionally having an ether group, an ester group, a carbonyl group, a sulfonyl group, a cyano group, an amino group, a nitro group, hydroxy group, a sulfur atom except in the sulfonyl group, or a halogen atom, and optionally bonded to each other to form a ring.