| 摘要 |
The invention relates to a stack of fuel cells. Each fuel cell comprises an electrolyte layer, an adjacent anode and cathode. The fuel cells are mechanically and electrically connected by bipolar disks. The object of the invention is to create a stack of fuel cells of the above-mentioned variety, whereby tightness is ensured in an improved manner. According to the invention, the stock of fuel cells comprises a plurality of plate-shaped fuel cells which are mechanically and electrically connected with bipolar plates. Each fuel cell comprises a cathode, an anode and an electrolyte layer arranged between the cathode and anode. Each cathode is adjacent to a cathode chamber and each anode is adjacent to an anode chamber. The bipolar plates comprise first recesses which are used to provide channels to allow operating material to be transported to the fuel cells or to enable the removal of depleted operating material. The bipolar plates also comprise additional recesses, wherein the fuel cells are arranged. The dimensions of said additional or other recesses are substantially adapted to the dimensions of the fuel cell. When the fuel cell is disposed in the recess it is only substantially and openly accessible from one side. Said openly accessible side or surface is essentially formed by a fuel cell electrode. Sealing material is arranged layer-by-layer above the other recess. At least one part of the edge of the fuel cell disposed in the recess is covered by said sealing material. |
