| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel cell stack improved in power generation efficiency using a collector member having a drift-forming member.SOLUTION: The fuel cell stack device includes a plurality of cell stacks provided with a plurality of fuel cells 3, having a first reaction gas passage inside and erected via collector members 4, and a manifold for supplying a first reaction gas to the fuel cell. The fuel cell 3 burns the first reaction gas and a second reaction gas which is not supplied for power generation above an upper end portion of the fuel cell. Since the collector member 4 includes a drift-forming member 19 for leading the second reaction gas upward to the upper-end portion of the fuel cell 3 in the upper end portion, the second reaction gas of sufficient amount can be supplied above the upper end portion of the fuel cell 3 so that the power generation efficiency of the fuel cell stack can be improved. |
