| 摘要 |
PROBLEM TO BE SOLVED: To allow for reliable reduction in the residual stress of an electrolyte membrane by a simple process.SOLUTION: An assembling method of a fuel cell stack 10 includes a step for maintaining a laminated fuel cell 12 in a state given with a load smaller than a predetermined fastening load in the lamination direction for a predetermined time, and a step for maintaining the laminated fuel cell 12 in a state given with a load larger than the load mentioned above in the lamination direction for a predetermined time, after elapsing the predetermined time. The load given to the laminated fuel cell 12 is increased gradually to a predetermined fastening load. |
