| 摘要 |
A fuel cell stack and a catalyst regeneration method of the fuel cell stack are provided. The fuel cell stack includes a plurality of unit cells that are interconnected in series and generate a current through an electrochemical reaction, end plates disposed on respective outer surfaces of outermost unit cells among the unit cells, a plurality of voltage detecting pins that contact respective unit cells to detect voltages of the respective unit cells, and a cell voltage monitoring board that is connected to the unit cells to induce catalyst regeneration by controlling a load and a voltage of each unit cell in accordance with a voltage output from the corresponding unit cell. When the fuel cell stack is deteriorated in the power generation efficiency and endurance as the unit cells of the fuel cell stack operate for a long period, the performance of the fuel cell stack can be restored by performing the catalyst regeneration operation. In addition, according to the present invention, since the contact of the voltage detecting pin with the corresponding unit cell can be reliably realized, the voltages of the unit cells can be more accurately detected without being affected by external conditions such as humidity generated during the electrochemical reaction, an ambient temperature, and an external impact. |
