GASKET FOR FUEL CELL

PROBLEM TO BE SOLVED: To provide a low repulsion gasket suitable for a fuel cell, which performs sealing without an inconvenient condition that a bead portion falls down with an internal pressure applied, or a large bending moment acts on an electrolyte film. SOLUTION: In a gasket for fuel cell, a gasket 12 is bonded/supported to/by a separator 2, where the gasket 12 is made of an elastic material and is inserted between the separator 2 and an electrolyte film 9, which constitute a cell. The cross section shape of the gasket 12 is set to an angle section, where the angle section has a bead portion (a) projecting into the side of the electrolyte film 9 in the intermediate part in the gasket width direction, and a thick-walled receiving part (b) located at both sides of the bead portion (a). The thickness of the thick-walled receiving part (b) is set to a larger value than the thickness of a base part (c) necessary for the gasket 12 to be bonded/supported to/by the separator 2. COPYRIGHT: (C)2005,JPO&NCIPI