Patent ID: 6645659
Filing Date: 2003-11-11
Classification: H01M,Y02E,Y02T

Abstract:
A fuel cell apparatus comprising:a stack of fuel cells having a fuel cell stacking direction and a first end and a second, opposite end in the fuel cell stacking direction; first and second end plates disposed on the first end and the second end of said stack of fuel cells, respectively, said first and second end plates pressing said stack of fuel cells therebetween and being connected by a fastening member extending in the fuel cell stacking direction outside said stack of fuel cells, said first end plate having an inboard surface facing said stack of fuel cells; and a pressure plate disposed on a side of said first end of said stack of fuel cells and inboard of said first end plate, said pressure plate having an outboard surface facing said first end plate, wherein said first end plate has a concave portion formed in said first end plate at said inboard surface of said first end plate, and said pressure plate has a convex portion having a curved surface formed in said pressure plate at said outboard surface of said pressure plate, said convex portion contacting said concave portion.