Cell performance of microtubular SOFCs with Sc-doped zirconia electrolyte under pressurized conditions

H. Nishino, S. Hashimoto, Y. Liu, K. Asano, M. Mori, Y. Funahashi, Y. Fujishiro

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

5 Citations (Scopus)

Abstract

We fabricated anode-supported solid oxide fuel cell (SOFC) tubes with La0 6Sr0 4Co0 2Fe0 8O3 (LSCF)-Ce0 8Gd0 2O1 9 (CGO) cathode, CGO buffer layer, (ZrO2)0 89(Sc2O3) 0 1(CeO2)001 (ScSZ) electrolyte, and Ni-ScSZ anode. The power generation test of the SOFC was carried out at 0.1 to 0.7 MPa at 650°C Using a wet H2-N2 mixture of fuel and air, the maximum power density at 0.1 MPa was 0.68 W cm-2 (at 2.6 A cm-2, Uf = 78%). With increased operating pressure, the performance was improved, and the power density finally became over 1.48 W cm-2 (at 2.8 A cm, Uf= 86%). Current interruption measurements confirmed that both the polarization resistance and ohmic resistance were reduced under the pressurized condition.

Original languageEnglish
Title of host publicationECS Transactions - 10th International Symposium on Solid Oxide Fuel Cells, SOFC-X
Pages597-601
Number of pages5
Edition1 PART 1
DOIs
Publication statusPublished - 2007 Dec 1
Event10th International Symposium on Solid Oxide Fuel Cells, SOFC-X - , Japan
Duration: 2007 Jun 32007 Jun 8

Publication series

NameECS Transactions
Number1 PART 1
Volume7
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

Other10th International Symposium on Solid Oxide Fuel Cells, SOFC-X
CountryJapan
Period07/6/307/6/8

ASJC Scopus subject areas

  • Engineering(all)

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