IEEJ Transactions on Power and Energy
Online ISSN : 1348-8147
Print ISSN : 0385-4213
ISSN-L : 0385-4213
Paper
Performance Change of Hydrogen Fueled Polymer Electrolyte Fuel Cell Internally Humidified at the Cathode by Gas Flow Pattern
Akio KanoKazuhisa TanakaTsutomu AokiYasuji OgamiHidetoshi SasoSatoshi AbeSuguru HariyamaHisao Nishikawa
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2006 Volume 126 Issue 8 Pages 821-826

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Abstract

With high hydrogen utilization operation, a minor imbalance in the distributed flow of the stack causes a shortage of hydrogen gas. In order to achieve high hydrogen utilization operation, we investigated the flow pattern for cells internally humidified at the cathode side. We fabricated both counter flow and co flow type cells for humidification of the cells inside the cathode and carried out electricity generation tests on single cells and cell stacks. Also we measured the distribution of relative humidity at the anode electrode for counter flow and co flow humidification of the cell inside the cathode. From these test results we concluded that the counter flow method is superior as a humidification cell inside a cathode when using the stack division method.

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© 2006 by the Institute of Electrical Engineers of Japan
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