The impact of pressurization on anode-supported and electrolyte-supported planar solid oxide fuel cells at 750°C ∼ 850°C

S. S. Shy, Y. D. Hsieh, J. D. Liang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

The impact of pressurization on anode and electrolyte-supported cells (ASC/ESC) is measured in a high-pressure SOFC test facility using the same single-cell stack setup, a planar fuel cell with rib-channel flow distributors, under the same experimental conditions (i.e. same flow rate, temperature, pressure). Results show that at T = 850°C and 0.7 V, power densities of ASC/ESC increase from 309/193 mW cm-2 to 476/250 mW cm-2, as p increases from 1 atm to 5 atm. As T increases from 750°C to 850°C at 0.7 V, power densities of ASC/ESC increase from 175/97 mW cm-2 to 309/193 mW cm-2 at p = 1 atm, while at p = 5 atm, the corresponding increases of power densities are 281/137 mW cm-2 to 476/250 mW cm-2. It is found that ASC is more sensitive to pressurization than ESC, while the latter is more temperature-sensitive. Corresponding electrochemical impedance spectra explain these results.

Original languageEnglish
Title of host publicationSolid Oxide Fuel Cells 14, SOFC 2015
EditorsK. Eguchi, S. C. Singhal
PublisherElectrochemical Society Inc.
Pages2169-2178
Number of pages10
Edition1
ISBN (Electronic)9781607685395
DOIs
StatePublished - 2015
Event14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015; held as part of the Electrochemical Society, ECS Conference on Electrochemical Energy Conversion and Storage - Glasgow, United Kingdom
Duration: 26 Jul 201531 Jul 2015

Publication series

NameECS Transactions
Number1
Volume68
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Conference

Conference14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015; held as part of the Electrochemical Society, ECS Conference on Electrochemical Energy Conversion and Storage
Country/TerritoryUnited Kingdom
CityGlasgow
Period26/07/1531/07/15

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