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Low Temperature Performance Improvement of SOFC with Thin Film Electrolyte and Electrodes Fabricated by Pulsed Laser Deposition

Authors
Noh, Ho-SungSon, Ji-WonLee, HeonSong, Hue-SupLee, Hae-WeonLee, Jong-Ho
Issue Date
2009
Publisher
ELECTROCHEMICAL SOC INC
Citation
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, v.156, no.12, pp.B1484 - B1490
Indexed
SCIE
SCOPUS
Journal Title
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
Volume
156
Number
12
Start Page
B1484
End Page
B1490
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/122144
DOI
10.1149/1.3243859
ISSN
0013-4651
Abstract
The performance of solid oxide fuel cells (SOFCs) with thin film electrolytes and electrodes was investigated at a lower operating temperature regime (T <= 600 degrees C). 2 x 2 cm anode-supported unit cells with thin film components of a Ni-yttria-stabilized zirconia (YSZ) composite anode interlayer, a thin (<= 1 mu m) YSZ electrolyte, and a lanthanum strontium cobalt oxide cathode were fabricated by using pulsed laser deposition, and the performance of the cells was characterized at the temperature range of 350 degrees C <= T <= 600 degrees C. Stable open-circuit voltage values above 1 V were successfully obtained with thin film electrolyte cells, which implied that the 1 mu m thick electrolyte was fairly dense and gastight. The thin film electrolyte cells exhibited a much more improved cell performance than a thick film (similar to 8 mu m) YSZ electrolyte cell at the low operating temperature regime (350-550 degrees C) and, in some cases, showed better power outputs than other thin film membrane micro-SOFCs. (C) 2009 The Electrochemical Society. [DOI: 10.1149/1.3243859] All rights reserved.
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공과대학 (신소재공학부)
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