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

Peiwen Li, Gege Tao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An analytical model is proposed, and the analysis is conducted for solid oxide fuel cells in order to achieve higher power densities. The analytical model is designated to help designers to optimize the current collector sizes and spacing, and also the geometrical shapes of the current collectors as well. The analytical model basically has a whole consideration about the ohmic polarization, the species concentration polarization, and the activation polarization; while the load of optimization computations and analysis is greatly alleviated for engineering designers. From the analysis of several cases, it is recommended that 3D pillars be used for the current collectors in SOFCs incorporating with appropriate measures of a uniform flow distribution. It is also clear that unless limited by the fabrication technologies for the bipolar plates, a smaller control area and current collectors are preferable to SOFCs to have higher power densities.

Original languageEnglish (US)
Title of host publicationEnergy Systems
Subtitle of host publicationAnalysis, Thermodynamics and Sustainability
PublisherAmerican Society of Mechanical Engineers (ASME)
Pages579-586
Number of pages8
ISBN (Electronic)0791843009
DOIs
StatePublished - Jan 1 2007
EventASME 2007 International Mechanical Engineering Congress and Exposition, IMECE 2007 - Seattle, United States
Duration: Nov 11 2007Nov 15 2007

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Volume6

Other

OtherASME 2007 International Mechanical Engineering Congress and Exposition, IMECE 2007
CountryUnited States
CitySeattle
Period11/11/0711/15/07

ASJC Scopus subject areas

  • Mechanical Engineering

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  • Cite this

    Li, P., & Tao, G. (2007). Effect of the geometries of current collectors on the power density in a solid oxide fuel cell. In Energy Systems: Analysis, Thermodynamics and Sustainability (pp. 579-586). (ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE); Vol. 6). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/IMECE200741032