CPC H01M 8/0273 (2013.01) [H01M 8/028 (2013.01); H01M 8/0267 (2013.01); H01M 8/1004 (2013.01)] | 16 Claims |
1. An air-cooling fuel cell stack, comprising a plurality of fuel cells, wherein each of the fuel cells comprises:
an anode bipolar plate;
a cathode bipolar plate;
a membrane electrode assembly located between the anode bipolar plate and the cathode bipolar plate, wherein the membrane electrode assembly comprises an anode side structure, a cathode side structure, and an ion conductive membrane, and the ion conductive membrane is sandwiched between the anode side structure and the cathode side structure;
an anode sealing member disposed at a periphery of the anode side structure and sandwiched by the anode bipolar plate and the ion conductive membrane; and
a cathode sealing member disposed at a periphery of the cathode side structure and sandwiched by the cathode bipolar plate and the ion conductive membrane, wherein
the anode sealing member comprises a first sealing material and a second sealing material, the first sealing material and the second sealing material have the same height after the fuel cells are compressed, a Shore hardness of the first sealing material is different from a Shore hardness of the second sealing material, and an arrangement direction of the first sealing material and the second sealing material is perpendicular to a compression direction of the plurality of fuel cells.
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