Electromotive Potential Distribution and Electronic Leak Currents in Working YSZ Based SOCs

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Abstract

The size of electronic leak currents through the YSZ electrolyte of solid oxide cells have been calculated using basic solid state electrochemical relations and literature data. The distribution of the electromotive potential, of Galvani potential, of concentration of electrons, e, and electron holes, h, was also calculated as these parameters are the basis for the understanding of the electronic conductivity that causes the electronic leak currents. The results are illustrated with examples. The effects of electrolyte thickness, temperature and cell voltage on the electronic leak current density are reported.
Original languageEnglish
JournalE C S Transactions
Volume25
Issue number2
Pages (from-to)1315-1320
ISSN1938-5862
DOIs
Publication statusPublished - 2009
Event216th ECS Meeting: 11th International Symposium B10 - Solid Oxide Fuel Cells - Vienna, Austria
Duration: 4 Oct 20099 Oct 2009
Conference number: 216
http://www.electrochem.org/meetings/biannual/216/216.htm

Conference

Conference216th ECS Meeting
Number216
CountryAustria
CityVienna
Period04/10/200909/10/2009
Internet address

Bibliographical note

Copyright The Electrochemical Society, Inc. [2009]. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS).

Keywords

  • Solid Oxide Fuel Cells
  • Fuel Cells and hydrogen

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