Exchange current density of solid oxide fuel cell electrodes

T. Yonekura, Y. Tachikawa, T. Yoshizumi, Y. Shiratori, K. Ito, K. Sasaki

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

26 Citations (Scopus)

Abstract

It is desired to develop computational procedures to simulate internal current density, anode/cathode gas concentrations, and temperature distribution in solid oxide fuel cell (SOFC) systems. In this study, the influences of various operational conditions on the exchange current density, the essential parameter to simulate SOFC performance, are revealed and discussed. The anodic exchange current density depended strongly on the humidity of H 2-based fuel gas, and it exhibited the highest value at around 40% H 2O. The cathodic exchange current density was strongly affected by the operational temperature. Parameters necessary to describe dependencies of exchange current density on various operational parameters were determined by fitting measured exchange current density values with empirical equations.

Original languageEnglish
Title of host publicationSolid Oxide Fuel Cells 12, SOFC XII
Pages1007-1014
Number of pages8
Edition2 PART 2
DOIs
Publication statusPublished - Dec 1 2011
Event12th International Symposium on Solid Oxide Fuel Cells, SOFC-XII - 219th ECS Meeting - Montreal, QC, Canada
Duration: May 1 2011May 6 2011

Publication series

NameECS Transactions
Number2 PART 2
Volume35
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

Other12th International Symposium on Solid Oxide Fuel Cells, SOFC-XII - 219th ECS Meeting
CountryCanada
CityMontreal, QC
Period5/1/115/6/11

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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    Yonekura, T., Tachikawa, Y., Yoshizumi, T., Shiratori, Y., Ito, K., & Sasaki, K. (2011). Exchange current density of solid oxide fuel cell electrodes. In Solid Oxide Fuel Cells 12, SOFC XII (2 PART 2 ed., pp. 1007-1014). (ECS Transactions; Vol. 35, No. 2 PART 2). https://doi.org/10.1149/1.3570081