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Microstructural factors of electrodes affecting the performance of anode-supported thin film yttria-stabilized zirconia electrolyte (similar to 1 mu m) solid oxide fuel cells

Authors
Noh, Ho-SungLee, HeonKim, Byung-KookLee, Hae-WeonLee, Jong-HoSon, Ji-Won
Issue Date
1-9월-2011
Publisher
ELSEVIER SCIENCE BV
Keywords
Thin film electrolyte solid oxide fuel cell; Yttria-stabilized zirconia; Pulsed laser deposition; Anode support; Cathode thickness
Citation
JOURNAL OF POWER SOURCES, v.196, no.17, pp.7169 - 7174
Indexed
SCIE
SCOPUS
Journal Title
JOURNAL OF POWER SOURCES
Volume
196
Number
17
Start Page
7169
End Page
7174
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/111607
DOI
10.1016/j.jpowsour.2010.09.038
ISSN
0378-7753
Abstract
The effects of the microstructural factors of electrodes, such as the porosity and pore size of anode supports and the thickness of cathodes, on the performance of an anode-supported thin film solid oxide fuel cell (TF-SOFC) are investigated. The performance of the TF-SOFC with a 1 mu m-thick yttria-stabilized zirconia (YSZ) electrolyte is significantly improved by employing anode supports with increased porosity and pore size. The maximum power density of the TF-SOFCs increases from 370 mW cm(-2) to 624 mW cm(-2) and then to over 900 mW cm(-2) at 600 degrees C with increasing gas transport at the anode support. Thicker cathodes also improve cell performance by increasing the active reaction sites. The maximum power density of the cell increases from 624 mW cm(-2) to over 830 mW cm(-2) at 600 degrees C by changing the thickness of the lanthanum strontium cobaltite (LSC) cathode from 1 to 2-3 mu m. (C) 2010 Elsevier B.V. All rights reserved.
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공과대학 (신소재공학부)
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