Chapter 55. Development of a Tri-Layer Electrochemical Model for a Solid Oxide Fuel Cell

  1. Edgar Lara-Curzio and
  2. Michael J. Readey
  1. Badri Ramamurthi1,
  2. Vikas Midha2,
  3. James Ruud3 and
  4. Mark Thompson4

Published Online: 26 MAR 2008

DOI: 10.1002/9780470291184.ch55

28th International Conference on Advanced Ceramics and Composites A: Ceramic Engineering and Science Proceedings, Volume 25, Issue 3

28th International Conference on Advanced Ceramics and Composites A: Ceramic Engineering and Science Proceedings, Volume 25, Issue 3

How to Cite

Ramamurthi, B., Midha, V., Ruud, J. and Thompson, M. (2004) Development of a Tri-Layer Electrochemical Model for a Solid Oxide Fuel Cell, in 28th International Conference on Advanced Ceramics and Composites A: Ceramic Engineering and Science Proceedings, Volume 25, Issue 3 (eds E. Lara-Curzio and M. J. Readey), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470291184.ch55

Author Information

  1. 1

    GE Global Research Center K1–4C30 1 Research Circle Niskayuna NY 12309

  2. 2

    GE Global Research Center K1–4C17 1 Research Circle Niskayuna NY 12309

  3. 3

    GE Global Research Center MB1651 Research Circle Niskayuna NY 12309

  4. 4

    GE Global Research Center K1–4B4 1 Research Circle Niskayuna NY 12309

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2004

ISBN Information

Print ISBN: 9780470051498

Online ISBN: 9780470291184

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Keywords:

  • SOFC;
  • ionic and electronic transport;
  • charge transfer reactions;
  • OCV;
  • LSM

Summary

We report the development of a 1D continuum model to describe the performance of a Solid Oxide Fuel Cell (SOFC). the model consists of two coupled components: 1) Charge transport, and 2) Species transport. the effective transport properties that feed into these components were computed from percolation theory.

Ionic and electronic potential distributions in the cell were obtained by solving for transport of charged species (oxygen ions and electrons), the production/loss of charged species being modeled by Butler-Volmer Kinetics. A multi-component diffusion model was employed to account for the diffusion of multiple neutral species through the porous electrode and solve for species concentration within the cell. Good agreement was observed between the model and experimental I-V characteristics of SOFCs under a series of operating conditions.