| 摘要 |
PROBLEM TO BE SOLVED: To stably generate power for a long time by effectively recovering phosphoric acid vapor vaporized according to power generation and reducing the scattering amount of phosphoric acid. SOLUTION: A matrix 5 for supporting phosphoric acid is interposed between a fuel electrode 4 and an air electrode 6, and a fuel electrode side reservoir plate 2B (or 2C or 2D) and an air electrode side reservoir plate 7 are arranged on each side of the electrodes 4, 5 to form a unit cell 1. The unit cell 1 and a separator 9 are alternately stacked, then cooling plates 10 are assembled to constitute a fuel cell stacked body, then a manifold is assembled on the side surface of the fuel cell stacked body to form a phosphoric acid fuel cell. Reservoir plates 2B, 2C, 2D are protruded from the side surface of the fuel cell stacked body in the downstream position of a fuel gas, and the protruding length is gradually lengthened as the reservoir plates are apart at the stacking direction distance from the cooling plate. |
