Patent ID: 8758953

Claim:
A membrane electrode assembly, comprising a high temperature proton exchange membrane disposed between an anode electrode and a cathode electrode; wherein a catalyst and at least one additive are disposed in a layer applied at an interface between the membrane and each of the anode and cathode electrodes; wherein the at least one additive comprises an organic or inorganic acid material, acid salt, fluoropolymer, perfluoroacid electrolyte, or an ionomer in an amount of between about 1% and 15% of a weight of the catalyst at the interface; wherein the additive is in immediate contact with the catalyst thereby creating enhanced reaction kinetics at the interface, including enhanced oxygen reduction kinetics at the cathode interface; and wherein the resulting assembly has a power density per unit area of between about 180 and 300 mW/cm 2 at 0.67V with ambient pressure H 2 /Air operating at 180° C.