| 摘要 |
A solid oxide fuel cell stack is provided in which a separate fuel-blocking unit is provided to each fuel supply tube that connects a fuel supply unit to each bundle portion of the stack, so that the fuel supply to a defective bundle portion may be selectively blocked, thereby preventing the risk of explosion due to fuel leakage and the performance degradation of the other bundle portions. To this end, a fuel cell stack includes a bundle portion including unit cells each having a stacked structure of a first electrode, an electrolytic layer, and a second electrode, and a manifold having the unit cells connected thereto. A fuel supply portion is connected to the manifold of the bundle portion through a fuel supply tube provided at one side thereof. A fuel-blocking unit is connected to the fuel supply tube to block the fuel supply tube. |
