Document Type

Article

Publication Date

5-1-1996

Publication Title

Journal of the Electrochemical Society

Abstract

In this paper a new model for porous electrodes in molten-carbonate fuel cells (MCFC) is presented. The model is based on an averaging technique commonly used in porous-media problems. Important disadvantages of the existing agglomerate model caused by geometric assumptions and restrictions are eliminated in this new model. Unlike the agglomerate model, the new model is suitable for studying three-dimensional and anisotropic problems and incorporating the degree of electrolyte fill. Different reaction mechanisms can easily be incorporated. The validity of the new model is checked and compared with the agglomerate model by fitting the two models to ac-impedance spectra recorded from porous MCFC cathodes.

Volume

143

Issue

5

First Page Number

1617

Last Page Number

1628

DOI

10.1149/1.1836688

Publisher Statement

© The Electrochemical Society, Inc., 1996. 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 143(5), 1617-1628.

Included in

Mathematics Commons

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