FUEL-CELL-STACK MANUFACTURING METHOD AND FUEL-CELL-STACK

摘要

[Problem] To provide a fuel-cell-stack manufacturing method capable ofincreasing the loadthat a raised piece of a deformation absorption member can receive from theseparator unit.[Solution] The deformation absorption member 20 used in the fuel-cell-stack 1manufacturingmethod is disposed between an anode side separator 11 and a cathode sideseparator 12, andcomprises a thin-board-like base material 21, and a plurality of raised pieces22 that are providedraised from one surface 21a of the base material in a grid pattern. In thearrangement step, anextension portion (the free end portion 22b) extended from the proximal end(the fixed endportion 22a) of the raised piece provided on one surface of the base materialis disposed so as tobe abutted to the cathode side separator or the anode side separator. Thesetting step sets theinterval between the anode side separator and the cathode side separator alongthe laminationdirection X so that the deformation of the raised piece exceeds an elasticdeformation region andenters a plastic deformation region, and is also in a region in which theproximal end that ismoved due to the deformation will not come in contact with the cathode sideseparator or theanode side separator.