Patent ID: 8034513
Filing Date: 2011-10-11
Classification: H01M,Y02E

Abstract:
1. A direct-methanol fuel cell comprising: an anode which comprises a current collector and an anode catalytic layer formed in the current collector and into which an aqueous methanol solution is introduced as a fuel; a cathode which comprises a current collector and a cathode catalytic layer formed in the current collector, the cathode catalytic layer being disposed facing the anode catalytic layer and into which an oxidizer is introduced; and an electrolyte membrane interposed between the anode and the cathode such that it is in contact with each catalytic layer, wherein the cathode catalytic layer comprises a catalyst, a perfluoroalkylsulfonic acid polymer, and a ternary metal-containing copolymer including a first, a second and a third vinyl monomers, the first vinyl monomer containing a carbon atom bonded to a vinyl group, and an acidic functional group, a basic functional group and an organic metal complex of Pt, the acidic functional group, the basic functional group and a carbon atom in the organic metal complex of Pt being bonded to the carbon atom, respectively, the second vinyl monomer containing a carbon atom bonded to a vinyl group, and an acidic functional group, a basic functional group and an organic metal complex of M1, where M1 is a metal selected from Sn, Zn, Ni, Fe, Co, Al and Cu, the acidic functional group, the basic functional group and a carbon atom in the organic metal complex of M1 being bonded to the carbon atom, respectively, and the third vinyl monomer containing a carbon atom bonded to a vinyl group, and an acidic functional group, a basic functional group and an organic metal complex in which M2 is ionically bonded, where M2 is Eu or La, the acidic functional group, the basic functional group and a carbon atom in the organic metal complex being bonded to the carbon atom, respectively.