| 摘要 |
PURPOSE:To make an overall structure be flexible so as to maintain a uniform surface pressure even if thermal stress and distortion are caused, and facilitate manufacture in addition, by arranging corrucated sheets and mask sheets on both sides of a partition plate and airtightly welding the periphery thereof. CONSTITUTION:A separator 10 of a fuel cell is provided with corrugated sheets 12 on both sides of a plane partition plate 11, and mask sheets 13, on which electrode fixing holes 13a with dimensions corresponding to respective electrodes 4 and 5 of an electric cell are formed, are arranged on the outside of the corrugated sheets 12. Then, peripheries 13b of the respective mask sheets 13 are folded in such a way as they overlap on the partition plate 11, and the peripheries 13b of the patition plate 11 and the two mask sheets 13 are seam welded airtightly. This realizes an overall flexible structure with uniform clamping force and at the same time, it uniformalizes the surface pressure by absorbing thermal stress and distortion even if they are caused. Manufacture thereof is facilitated in addition. |
