A comparison of operating strategies to reduce DMFC degradation |
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| Authors: | F. Bresciani A. Casalegno J. L. Bonde M. Odgaard R. Marchesi |
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| Affiliation: | 1. Politecnico di Milano, Department of Energy, Milano, Italy;2. IRD Fuel Cell A/S, Svendborg, Denmark |
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| Abstract: | Degradation is one of the most critical issues that hinder the commercialization of fuel cells. The experimental investigations of direct methanol fuel cell degradation are complicated by the presence of a temporary contribution that can be recovered adopting suitable operating strategies. In the present work, a methodology to distinguish temporary and permanent degradation is proposed. The capability of different operating strategies to mitigate temporary degradation is evaluated. A strategy, consisting in refresh cycles involving open circuit voltage and cathode air interruption, able to minimize temporary degradation and reduce permanent degradation, is identified and compared with steady‐state operation. Copyright © 2013 John Wiley & Sons, Ltd. |
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| Keywords: | fuel cell DMFC degradation operating strategies |
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