Effect of the geometries of current collectors on the power density in a solid oxide fuel cell

Peiwen Li, Gege Tao, Hong Liu

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

An analytical model is proposed and an analysis is conducted for solid oxide fuel cells with goals of higher power densities. The analytical model is designed to help optimize the size, spacing, and geometrical shapes of current collectors. The model fully considers the ohmic, species concentration, and activation polarizations. From the analysis of several cases, it is recommended that 3D pillars be used for the current collectors in SOFCs while incorporating appropriate measures to ensure a uniform flow distribution. It is also clear that unless limited by the fabrication technologies for the bipolar plates, smaller control areas and current collectors are preferable for SOFCs to have higher power densities.

Original languageEnglish (US)
Pages (from-to)1-11
Number of pages11
JournalInternational Journal of Energy and Environmental Engineering
Volume2
Issue number3
StatePublished - Dec 1 2011

Keywords

  • Bipolar plate
  • Current collectors
  • Design
  • Optimization
  • SOFC

ASJC Scopus subject areas

  • Environmental Engineering
  • Energy(all)

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