Catalytic layer forced flow type fuel cell
The invention discloses a fuel cell device which is formed by sequentially stacking a plurality of bipolar plate assemblies and a plurality of membrane electrode assemblies, and each membrane electrode assembly comprises an ion exchange membrane, an anode catalyst layer, a cathode catalyst layer and...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a fuel cell device which is formed by sequentially stacking a plurality of bipolar plate assemblies and a plurality of membrane electrode assemblies, and each membrane electrode assembly comprises an ion exchange membrane, an anode catalyst layer, a cathode catalyst layer and an anode gas diffusion layer. A cathode gas diffusion layer is omitted, the bipolar plate assembly is in direct contact with a cathode catalyst layer, and a working medium is forced to circulate in the transverse direction after entering the cathode catalyst layer through the design of interdigital runners on the bipolar plate assembly, so that the flow speed of the cathode working medium is greatly increased, and meanwhile, the anode gas diffusion layer and the membrane electrode assembly are better supported and protected; and the service life of the fuel cell device is guaranteed. By introducing exhaust gas recirculation of the cathode exhaust port, the exhaust gas of the cathode exhaust port is recirculated to |
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