Patent ID: 7842433
Filing Date: 2010-11-30
Classification: H01M,Y02E,Y02P

Abstract:
1. A solid polymer electrolyte fuel cell separator plate, wherein said separator plate comprises a portion in contact with an electrode, and a sealing portion in contact with a seal provided around said contact portion, said contact portion having a larger surface roughness (Rmax) than that of said sealing portion; wherein said contact portion has a surface roughness (Rmax) of 15-40 μm, and said sealing portion in contact with a seal in a form of a preformed sheet or a preformed O-ring made of an elastic material has a surface roughness (Rmax) of 5-10 μm; wherein the solid polymer electrolyte fuel cell separator plate is a molded separate plate made of a composite carbon material; and wherein said composite carbon material comprises carbon and a thermosetting resin; wherein the thermosetting resin is provided in said sealing portion.