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Estimates for Polarization Losses in Molten Carbonate Fuel Cell Cathodes
Journal of the Electrochemical Society
  • Joseph D. Fehribach, Worcester Polytechnic Institute
  • Kas Hemmes
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This paper compares the polarization losses associated with the various diffusion-reaction-conduction processes in molten carbonate cathodes. The comparisons are made by estimating each type of loss in terms of component electrochemical potentials in joules/mole: this allows diffusive. charge-transfer. and ohmic losses to all be put on equal footing. For characteristic parameter values, diffusion in both the pas and electrolyte phases and conduction in the electrolyte account for similar polarization losses: charge-transfer and conduction in the solid electrode account for significantly smaller losses. These results tend to support and unify the previous work of numerous investigators. Also molecular-channel interactions are found not to contribute significantly to the polarization loss.
Publisher Statement
© The Electrochemical Society, Inc., 2001. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS). The archival version of this work was published in Journal of the Electrochemical Society 148(7), A783-A787.
Citation Information
Joseph D. Fehribach and Kas Hemmes. "Estimates for Polarization Losses in Molten Carbonate Fuel Cell Cathodes" Journal of the Electrochemical Society Vol. 148 Iss. 7 (2001) p. A783 - A787
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