Patent ID: 8309218

Claim:
An article comprising a plurality of membrane electrode assemblies, which comprises: a polymer electrolyte membrane having a first and second face; a plurality of first catalyst decals each comprising a removable liner layer and a co-extensive catalyst layer which in turn comprises particulate catalyst metal, wherein said first catalyst decals have a co-extensive catalyst layer side and an opposed removable liner layer side, and wherein the co-extensive catalyst layer side of each of said first catalyst decals is laminated on said first face of said membrane such that adjacent catalyst decals are not in contact with each other; and a plurality of second catalyst decals each comprising a removable liner layer and a co-extensive catalyst layer which in turn comprises particulate catalyst metal, wherein said second catalyst decals have a co-extensive layer side and an opposed removable liner layer side, and wherein the co-catalyst extensive catalyst layer side of each of said second catalyst decals is laminated on said second face of said membrane such that adjacent catalyst decals are not in contact with each other; wherein each of said first catalyst decals has a perimeter and each of said second catalyst decals has a perimeter which is in accurate registration with a perimeter of an opposing first catalyst decals.