DOI | Trouver le DOI : https://doi.org/10.1016/j.jpowsour.2007.02.042 |
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Auteur | Rechercher : Gazzarri, J. I.1; Rechercher : Kesler, O1 |
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Affiliation | - Conseil national de recherches du Canada. Institut d'innovation en piles à combustible du CNRC
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Format | Texte, Article |
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Sujet | Solid oxide fuel cell; Delamination; Impedance spectroscopy; Modeling; Degradation; Diagnostics |
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Résumé | A finite element model has been developed to simulate the steady state and impedance behaviour of a single operating solid oxide fuel cell (SOFC). The model results suggest that electrode delamination can be detected minimally-invasively by using electrochemical impedance spectroscopy. The presence of cathode delamination causes changes in the cell impedance spectrum that are characteristic of this type of degradation mechanism. These changes include the simultaneous increase in both the series and polarization resistances, in proportion to the delaminated area. Parametric studies show the dependence of these changes on the extent of delamination, on the operating point, and on the kinetic characteristics of the fuel cell under study. |
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Date de publication | 2007-05-15 |
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Dans | |
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Langue | anglais |
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Numéro NPARC | 8901052 |
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Exporter la notice | Exporter en format RIS |
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Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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Identificateur de l’enregistrement | 85b00dce-d235-4942-9b57-84055f0567ba |
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Enregistrement créé | 2009-04-22 |
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Enregistrement modifié | 2020-05-10 |
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