| 摘要 |
PROBLEM TO BE SOLVED: To manufacture a fuel cell excellent in gas sealing reliability by enhancing the bonding strength of adhesive to a solid-state high molecular electrolytic film. SOLUTION: A bonded body bonded by catching an electrolytic film by an anode and a cathode is exposed in an atmosphere having a temperature of 25 deg.C and a humidity of 50% for more than one hour (S100). Then, separators are prepared and an adhesive is applied to the areas of the separators corresponding to joining parts to the electrolytic film (S120). The adhesive is a rubber denaturalization adhesive and is characterized by an elastic modulus of not more than 10 MPa and a hardness (durometer A) of not more than 90. Thereafter, the separators are laminated on the electrolytic film and are cured (S130, 140). By the use of the process S110, the moisture content rate λ of the electrolytic film is not more than a value of four and the bonding strength by the adhesive to the electrolytic film becomes high. |
