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Effects of different design parameters on the performance of MCFC cathodes

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Author

  • Eduardo Fontes
  • Magnus Fontes
  • Daniel Simonsson

Summary, in English

The effects of electrode thickness, electrolyte filling and current collector geometry on the performance of MCFC cathodes are investigated by using a steady state mathematical model. A two-dimensional pseudo-homogeneous model for the three-phase system in the cathode is used, which includes the polarisation curves from the heterogeneous agglomerate model[1] as local source functions. The model takes into account the potential distribution in the electrolyte and catalyst phase but neglects mass transport limitations in the gas phase. The simulations show that, for cathodes with a finite electronic conductivity, there is a substantial potential distribution perpendicular to the depth of the electrode depending on the size of the gas holes in the current collector.

Publishing year

1996

Language

English

Pages

1-13

Publication/Series

Electrochimica Acta

Volume

41

Issue

1

Document type

Journal article

Publisher

Pergamon Press Ltd.

Topic

  • Mathematics

Keywords

  • fuel cell
  • MCFC
  • gas diffusion electrodes
  • mathematical modelling
  • Lithium coboltite

Status

Published

ISBN/ISSN/Other

  • ISSN: 0013-4686