Elucidation of Degradation Factor Distribution in a Same Electrode on PEFC

Our proposal diagnostics evaluates the PEFC's transient response with a resistance polarization, an activation polarization and a diffusion polarization, and derives diagnostics parameters by analyzing this transient response. Because we have already clarified that this diagnostics system was a...

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Bibliographic Details
Published inECS transactions Vol. 71; no. 1; pp. 107 - 112
Main Authors Sugiura, Kimihiko, Takahashi, Naoya, Daigo, Akihiko, Murakami, Tetsuya
Format Journal Article
LanguageEnglish
Published The Electrochemical Society, Inc 12.02.2016
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Summary:Our proposal diagnostics evaluates the PEFC's transient response with a resistance polarization, an activation polarization and a diffusion polarization, and derives diagnostics parameters by analyzing this transient response. Because we have already clarified that this diagnostics system was able to diagnose the 25cm2 PEFC single cell, we tried to elucidate the degradation factor distribution in the same electrode by applying it to the quadrisection separator. As a result, our diagnostics was able to judge the difference of the degradation factor in each section in the same electrode such as the resistance polarization is the highest at the gas upper stream, the activation polarization is the lowest at the middle section and the diffusion polarization is the highest at the gas downstream.
ISSN:1938-5862
1938-6737
DOI:10.1149/07101.0107ecst