| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for manufacturing a solid polymer fuel cell by which when forming a catalyst layer on a surface of the electrolytic film by directly coating the electrolytic film with a catalyst ink by means of a blade method, followed by drying, the swelling of the film is suppressed, and the catalyst layer uniform in thickness can be obtained. <P>SOLUTION: The method comprises the steps of: supplying a catalyst ink including a polymer material and a solvent to an entire surface of an electrolytic film to form beads; coating the electrolytic film with the catalyst ink formed in the beads by scanning a blade; and heating and drying the coated electrolytic film by means of a backside heating unit provided under the backside of the electrolytic film. The blade is moved in synchronization with the backside heating unit at the same speed. The heating by the backside heating unit is arranged so that the catalyst ink is kept at an atmospheric temperature without heating during the step where the catalyst ink is formed into beads, and the heating is performed as the electrolytic film is coated with the catalyst ink. Thus, the following are made possible: to suppress the drying of the beads; to perform the coating with the blade with good accuracy; and to vaporize the solvent promptly after the coating. <P>COPYRIGHT: (C)2013,JPO&INPIT |
