| 摘要 |
There is provided a fuel cell including an electrolyte film, a catalyst layer, two diffusion layers, a fuel supply layer, an oxygen supply layer, a water-absorbing layer, and a collector, in which the fuel cell has an opening at least in a part of a side surface parallel to a proton conduction direction of the electrolyte film among side surfaces of the fuel cell; the water-absorbing layer is present between the oxygen supply layer and the collector; and an end portion of the water-absorbing layer is present on one of a plane including the opening and an opposite side ., of the fuel cell with the plane including the opening being a reference, and a fuel cell system having a fue.l cell stack including the fuel cells. The fuel cell has high dischargeability, is capable of stably maintaining a high generation efficiency and realizes a high output even in a small size and a light weight. |
