Patent ID: 9276281
Filing Date: 2016-03-01
CPC Classification: B05B,B05C,H01M,Y02E,Y02P

Claim Text:
1. A method for manufacturing a fuel cell membrane-electrode assembly, the method comprising: storing a catalyst slurry in a plurality of sprays spaced from a pair of metal drums; applying a voltage between the sprays and the metal drums; injecting the catalyst slurry through a tip of each of the sprays toward the metal drums, wherein the catalyst slurry and voltage cause a Coulomb explosion to coat the catalyst slurry on the metal drums as a catalyst layer; and transferring the catalyst layer to both surfaces of a polymer electrolyte membrane fed by rotation through the metal drums, wherein a pattern for determining the size and shape of the catalyst layer is formed into fine engraved shapes or fine embossed shapes on the surface of each of the pair of the metal drums and an insulating material is coated on the periphery of the pattern of each of the metal drums such that the voltage is applied only to the pattern for determining the size and shape of the catalyst layer when applying the voltage to the metal drums.