FUEL CELL MEMBRANE ELECTRODE ASSEMBLY WITH MULTILAYER CATHODE

摘要

Polymer electrolyte membrane fuel cell membrane electrode assemblies are provided having multilayer cathodes, where a first layer of the cathode which is more proximate to the polymer electrolyte membrane is more hydrophilic than a second more distal layer of the cathode. In some embodiments, the first layer includes a polymer electrolyte having a lower equivalent weight than a polymer electrolyte included in the second layer.