GASKET OF FUEL CELL STACK

PROBLEM TO BE SOLVED: To provide a gasket to reduce stress concentration in a fuel cell stack in which breakage and deformation of a separation plate can be prevented, and separation of the gasket can be prevented. SOLUTION: In the gasket of the fuel cell stack which is inserted between an MEA and the separation plate or between the separation plate and the separation plate to maintain airtightness, in order to form a manifold for hydrogen, air, and cooling water, a coupling part consists of a T-shaped or a cruciform structure, and in order to relieve stress concentration occurring in the gasket due to deformation of the gasket caused by a compression force, branch parts (branch) of both directions of the coupling part to form 180° consists of a structure to meet at the crossing part while keeping a prescribed angle. COPYRIGHT: (C)2009,JPO&INPIT