Patent ID: 8592100

Claim:
A fuel cell comprising: an electrolyte membrane; a cathode in contact with of one side of the electrolyte membrane; and an anode in contact with the other side of the electrolyte membrane, wherein the cathode and/or the anode comprises at least two catalyst layers, a first catalyst layer of said at least two catalyst layers comprises: a first catalytic metal; and a first ion exchanger which has a first functional group capable of being adsorbed or bound to the first catalytic metal, and a second functional group providing ion conductivity, wherein, the first functional group is adsorbed or bound to the first catalytic metal, a second catalyst layer of said at least two catalyst layers comprises: a second catalytic metal; and a second ion exchanger which has a functional group providing ion conductivity and has a structure different from that of the first ion exchanger, wherein, the first ion exchanger is a dendron polymer, and the first functional group capable of being adsorbed or bound to the first catalytic metal is located at a root of the dendron polymer.