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

doi:10.1149/1.2729141

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

ENV - Environmental Studies for Advanced Society

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

5 Citations (Scopus)

Abstract

We fabricated anode-supported solid oxide fuel cell (SOFC) tubes with La_{0 6}Sr_{0 4}Co_{0 2}Fe_{0 8}O₃ (LSCF)-Ce_{0 8}Gd_{0 2}O_{1 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, U_f = 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, U_f= 86%). Current interruption measurements confirmed that both the polarization resistance and ohmic resistance were reduced under the pressurized condition.

Original language	English
Title of host publication	ECS Transactions - 10th International Symposium on Solid Oxide Fuel Cells, SOFC-X
Pages	597-601
Number of pages	5
Edition	1 PART 1
DOIs	https://doi.org/10.1149/1.2729141
Publication status	Published - 2007 Dec 1
Event	10th International Symposium on Solid Oxide Fuel Cells, SOFC-X - , Japan Duration: 2007 Jun 3 → 2007 Jun 8

Publication series

Name	ECS Transactions
Number	1 PART 1
Volume	7
ISSN (Print)	1938-5862
ISSN (Electronic)	1938-6737

Other

Other	10th International Symposium on Solid Oxide Fuel Cells, SOFC-X
Country	Japan
Period	07/6/3 → 07/6/8

ASJC Scopus subject areas

Engineering(all)

Access to Document

10.1149/1.2729141

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Nishino, H., Hashimoto, S., Liu, Y., Asano, K., Mori, M., Funahashi, Y., & Fujishiro, Y. (2007). Cell performance of microtubular SOFCs with Sc-doped zirconia electrolyte under pressurized conditions. In ECS Transactions - 10th International Symposium on Solid Oxide Fuel Cells, SOFC-X (1 PART 1 ed., pp. 597-601). (ECS Transactions; Vol. 7, No. 1 PART 1). https://doi.org/10.1149/1.2729141

Cell performance of microtubular SOFCs with Sc-doped zirconia electrolyte under pressurized conditions. / Nishino, H.; Hashimoto, S.; Liu, Y.; Asano, K.; Mori, M.; Funahashi, Y.; Fujishiro, Y.

ECS Transactions - 10th International Symposium on Solid Oxide Fuel Cells, SOFC-X. 1 PART 1. ed. 2007. p. 597-601 (ECS Transactions; Vol. 7, No. 1 PART 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Nishino, H, Hashimoto, S, Liu, Y, Asano, K, Mori, M, Funahashi, Y & Fujishiro, Y 2007, Cell performance of microtubular SOFCs with Sc-doped zirconia electrolyte under pressurized conditions. in ECS Transactions - 10th International Symposium on Solid Oxide Fuel Cells, SOFC-X. 1 PART 1 edn, ECS Transactions, no. 1 PART 1, vol. 7, pp. 597-601, 10th International Symposium on Solid Oxide Fuel Cells, SOFC-X, Japan, 07/6/3. https://doi.org/10.1149/1.2729141

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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.",

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AU - Funahashi, Y.

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N2 - 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.

AB - 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.

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