FUEL CELL STACK MANUFACTURING METHOD, FUEL CELL STACK, SEPARATOR, AND SEALING MEMBER

摘要

PROBLEM TO BE SOLVED: To improve the productivity of a fuel cell stack composed of fuel battery cells and sealing members which are alternately laminated one on another.

SOLUTION: Following steps are included: a temporary assemble step in which sealing members 50 are temporarily assembled to surfaces on one side of plural fuel battery cells 40 respectively and a lamination step in which temporarily assembled the plural fuel battery cells 40 and sealing members 50 are laminated one on another. A separator 44 in each fuel battery cell 40 has a pair of convex parts 44d1 and 44d2 which are used for positioning the sealing members 50 during the temporary assembly. The sealing members 50 each have bending elasticity and also are shaped so that when the sealing member 50 is bent, peripheral parts 50e thereof can be fitted in between the pair of convex parts 44d1 and 44d2 of the separator 44. The temporary assemble step further includes a step in which the sealing member 50 is bent and the peripheral parts 50e thereof are fitted in between the pair of convex parts 44d1 and 44d2 of the separator 44.

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