| 摘要 |
PURPOSE:To reduce the operation time required to replace a defective fuel cell and to reduce the rate of occurrence of reactive gas leaks. CONSTITUTION:This solid polymer electrolyte fuel cell uses a plurality of independent stacks 2 each of which has a plurality of unit cells 3 and a pressure device 4. The unit cells 3 differs from the prior art in that separators 31A, 31B made of carbon plates greater in surface-direction dimensions than a fuel cell 7 are used. The pressure device 4 has a pair of abutment plates 41, 41 made of carbon plates installed on both outside surface portions of each indipendent stack 2, having the same surface-direction outer dimensions as the separators 31A, 31B, and having cooling passages 412 formed therein to circulate cold water; and a pressurizing body 42 having a plurality of screws 421 mounted across both abutment plates 41, 41, nuts 422 fitted around the screws 421, and coned disc springs 423 fitted around the screws 421 to provide a stable pressurizing force. |
