Impedance Modeling of Solid Oxide Fuel Cell Cathodes

Jakob Egeberg Mortensen, Martin Søgaard, Torben Jacobsen

Research output: Contribution to journalConference articleResearchpeer-review

Abstract

A 1-dimensional impedance model for a solid oxide fuel cell cathode is formulated and applied to a cathode consisting of 50/50 wt% strontium doped lanthanum cobaltite and gadolinia doped ceria. A total of 42 impedance spectra were recorded in the temperature range: 555-852°C and in the oxygen partial pressure range 0.028-1.00 atm. The recorded impedance spectra were successfully analyzed using the developed impedance model in the investigated temperature and oxygen partial pressure range. It is also demonstrated that the model can be used to predict how impedance spectra evolve with different physical parameters such as the cathode thickness. ©2010 COPYRIGHT ECS - The Electrochemical Society
Original languageEnglish
JournalE C S Transactions
Volume28
Issue number11
Pages (from-to)17-38
ISSN1938-5862
DOIs
Publication statusPublished - 2010
Event217th ECS Meeting - Vancouver, Canada
Duration: 25 Apr 201030 Apr 2010
Conference number: 217
http://www.electrochem.org/meetings/biannual/217/217.htm

Conference

Conference217th ECS Meeting
Number217
CountryCanada
CityVancouver
Period25/04/201030/04/2010
Internet address

Keywords

  • Solid Oxide Fuel Cells
  • Fuel Cells and Hydrogen

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