| 摘要 |
PROBLEM TO BE SOLVED: To produce a high-quality joined body at a low cost by supplying a catalyst dispersion between the opposed faces of the ion-exchange membrane and perforated plate and discharging the solvent of the dispersion outside the perforated plate to form a catalyst grain layer on the membrane to produce an electrode. SOLUTION: A catalyst dispersion 20 is supplied into the spaces 5a and 5b partitioned by the ion-exchange membrane 4 and perforated plates 2a and 2b, and then a filtrate tank 12 is evacuated by a vacuum pump 14. The negative pressure acts on the openings of the perforated plates 2a and 2b fixed to fixed plates 1a and 1b, and the solvent of the dispersion 20 is discharged finally into the filtrate tank 12 through the openings. Meanwhile, the layer of the catalyst grains of the dispersion 20 is formed between the perforated plates 2a and 2b and the membrane 4. The layer is heated by heating plates 15a and 15b and pressed by a press 19. Consequently, the joined body of the electrode consisting of the catalyst grain layer and membrane 4 is produced with a high adhesion. |
