| 摘要 |
<p>A method for manufacturing a polymer electrolyte type fuel cell having a polymer electrolyte film and, arranged on both sides thereof, electrodes containing a catalyst layer and a gas diffusion layer being contacted with the polymer electrolyte film, and a separator contacted with the gas diffusion layer, characterized in that, in the formation of the catalyst layer through applying a paste containing a carbon fine powder comprising a noble metal catalyst carried on a specific support, followed by drying, the electrode is controlled to have a percentage of the surface area occupied by cracked portions below a predetermined acceptable level, through adjusting at least (1) the film thickness of the catalyst layer, (2) the type of the catalyst comprising carbon and a noble metal carried thereon and (3) the drying rate for the solvent in the paste. For example, a film thickness of 10 to 25 μm, a carbon carrying 5 to 20 wt % of platinum, and a drying rate for the solvent of 2.5 to 20 mg/cm2 · min are employed.</p> |
