FUEL CELL SEPARATOR, ELECTRODE STRUCTURE FOR A FUEL CELL, METHODS OF MANUFACTURING BOTH THEREOF, AND A POLYMER ELECTROLYTE FUEL CELL COMPRISING THE SAME

摘要

The degree of freedom in the shape of channels in a separator is increased,enabling an optimum gas channel to be designed, enabling a sufficient supplyof gas below gas channel ribs, and improving cell performance through thereduction in diffusion polarization. Drainage property is also improved andflooding is prevented, thereby reducing diffusion polarization and improvingcell performance. Cell performance is also improved through the reduction ofcontact resistance. A fuel cell separator comprises a separator substrate onwhich gas channel ribs are formed through vapor-phase growth of a carbon-basedporous material with a nanosize structure. An electrode structure for a fuelcell, methods of manufacturing the separator and the fuel cell, and a solidpolymer fuel cell comprising the electrode structure.