摘要 |
The invention relates to a fuel cell system comprising a number of polymer electrolyte membrane individual fuel cells (2), which are arranged one above the other to form a stack (3). According to the invention, an intermediate space (10) for accommodating a cooling medium is provided between adjacent individual fuel cells (2) or adjacent individual fuel cells (2) are delimited by bipolar plates (7), which comprise passages (12) for receiving a cooling medium. In addition, cooling medium distribution spaces (15) and cooling medium collection spaces (18) are arranged on the lateral surfaces (23) of the stack. In order to cool the fuel cell system (1), cooling medium flows into a cooling medium distribution space (15) through the intermediate spaces situated between the individual fuel cells or through the passages located in the bipolar plates and, finally, the cooling medium flows into the cooling medium collection space from which it leaves the fuel cell system. |