US 11,688,862 B2
Air-cooling fuel cell stack
Sung-Chun Chang, Hsinchu (TW); Chien-Ming Lai, Hsinchu County (TW); Chiu-Ping Huang, Taoyuan (TW); Keng-Yang Chen, Hsinchu County (TW); and Li-Duan Tsai, Hsinchu (TW)
Assigned to Industrial Technology Research Institute, Hsinchu (TW)
Filed by Industrial Technology Research Institute, Hsinchu (TW)
Filed on Oct. 8, 2021, as Appl. No. 17/496,788.
Claims priority of application No. 109145454 (TW), filed on Dec. 22, 2020.
Prior Publication US 2022/0200018 A1, Jun. 23, 2022
Int. Cl. H01M 8/04 (2016.01); H01M 8/0273 (2016.01); H01M 8/028 (2016.01); H01M 8/1004 (2016.01); H01M 8/0267 (2016.01)
CPC H01M 8/0273 (2013.01) [H01M 8/028 (2013.01); H01M 8/0267 (2013.01); H01M 8/1004 (2013.01)] 16 Claims
OG exemplary drawing
 
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.