| 摘要 |
A fuel cell stack is provided to reduce the assembled area of a separator, to improve the energy density and to allow miniaturization. A fuel cell stack includes at least one first separator(111) comprising graphite; at least one second separator(112) comprising a first metal(112a) with lower coefficient of thermal expansion and a second metal(112b) with higher corrosion resistance, which covers the first separator; and at least one membrane-electrode assembly(116) which comprises an electrolytic membrane(113), and an anode electrode(115) and a cathode electrode(114) which are disposed on both sides of the electrolytic membrane, and is supported by the first separator and the second separator. In the second separator, the first metal comprises an iron-nickel based alloy, and the second metal comprises at least one selected from the group consisting of copper, silver, platinum, gold, rhodium, iridium and an alloy thereof. |
