Operando and Ex-Situ Investigation of PEMFC Degradation

Longevity is one of key requirements of PEMFC for automotive applications. Hence, understanding degradation phenomena and durability limitations is fundamental to increase PEMFC life time and to make this technology competitive In this contribution a selection of our recent work on these topics is p...

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Published inECS transactions Vol. 92; no. 8; pp. 261 - 276
Main Authors Gazdzicki, Pawel, Mitzel, Jens, Sanchez, Daniel G, Aßmann, Pia, Sousa, Joana, Morawietz, Tobias, Hiesgen, Renate, Häußler, Frank, Hunger, Jürgen, Schlumberger, Günther, Friedrich, K. Andreas
Format Journal Article
LanguageEnglish
Published The Electrochemical Society, Inc 03.07.2019
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Summary:Longevity is one of key requirements of PEMFC for automotive applications. Hence, understanding degradation phenomena and durability limitations is fundamental to increase PEMFC life time and to make this technology competitive In this contribution a selection of our recent work on these topics is presented. In particular, attention in dedicated to study effect of performance limitations at low Pt loadings and to investigate impact of operation conditions on local degradation phenomena such as drying, contaminations or heterogeneities during dynamic operation. Moreover, specific operando accelerated stress tests are being developed and the relative impact on various stressors on individual MEA components is studied. Eventually, we present results related to on-line fault monitoring using current density distribution measurements linked with impedance spectroscopy.
ISSN:1938-5862
1938-6737
1938-6737
1938-5862
DOI:10.1149/09208.0261ecst