| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that aggregation of a resin potion generated by the shearing stress which is loaded during preparing a paste which forms a water repellent layer and a catalyst layer in an electrode, generates clogging in filter, lacks in coating film and so on, and also pinholes and cracks generated in the coating layer by air bubble involved in the process of making the paste result in short circuit failure and decline of cell output voltage. SOLUTION: Before adding the resin, strong shearing stress is loaded to accelerate the formation of secondary particles of a solid component, and after adding the resin, mixture processing is performed by weak shearing stress so as not to generate the aggregation of the resin, Also, the paste which forms the coating film layer is subject to decompression defoaming processing. |
