Patent ID: 7230069

Claim:
A polymer having a chain structure of a repeating unit of a proton-conducting compound which causes an electrochemical redox reaction in a solution of a proton source to act as an electrode active material, and a heterocyclic compound structure, wherein the chain structure of the proton-conducting compound has a quinoxaline structure represented by formula (1): wherein at least one of Rs is a group attached to the main chain or a side chain of the polymer, or two of Rs are groups constituting the main chain, and the other Rs are independently selected from the group consisting of hydrogen, hydroxyl, amino, carboxyl, nitro, phenyl, vinyl, halogen, acyl, cyano, trifluoromethyl, alkoxyl, sulfonic, trifluoromethylthio, carboxylate, sulfonate, C 1 to C 20 alkyl optionally substituted with one or more of the above substituents, C 2 to C 20 alkenyl optionally substituted with one or more of the above substituents, C 6 to C 20 aryl optionally substituted with one or more of the above substituents, C 1 to C 20 alkylthio optionally substituted with one or more of the above substituents and a heterocyclic compound residue.