Effect of anode support thickness on the performance of tubular SOFCs

Hui Jeong Son, Tak Hyoung Lim, Seung Bok Lee, Dong Ryul Shin, Rak Hyun Song, Sung Hyun Kim

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

2 Citations (Scopus)

Abstract

The performance of anode-supported tubular solid oxide fuel cells (SOFCs) was investigated in terms of the thickness of the anode support. Considering the geometry of single cell, it can be readily known that the concentration polarization across the anode-support is the most significant factor in determining the performance of the cell. For this purpose, we fabricated single cells having different anode-support thicknesses of 1 mm and 2 mm. Both the cathode layer ((La0 85Sr0 15)0 98MnO 3) and electrolyte layer (8 mol%yttriastabilized zirconia) were coated at the same condition. The cell performance increased with decreasing anode-support wall thickness. The single cell with a 1 -mm-thick wall showed a power density of 0.42 m W/cm2 at 0.7 V and 700°C From the analysis of impedance spectra, it was concluded that the total polarization of the anode-supported tubular SOFC was mainly governed by the concentration polarization caused by the mass transport though the anode support.

Original languageEnglish
Title of host publicationECS Transactions - 10th International Symposium on Solid Oxide Fuel Cells, SOFC-X
Pages543-549
Number of pages7
Edition1 PART 1
DOIs
Publication statusPublished - 2007
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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  • Cite this

    Son, H. J., Lim, T. H., Lee, S. B., Shin, D. R., Song, R. H., & Kim, S. H. (2007). Effect of anode support thickness on the performance of tubular SOFCs. In ECS Transactions - 10th International Symposium on Solid Oxide Fuel Cells, SOFC-X (1 PART 1 ed., pp. 543-549). (ECS Transactions; Vol. 7, No. 1 PART 1). https://doi.org/10.1149/1.2729134