Performance Enhancement of Freestanding Micro-SOFCs with Ceramic Electrodes by the Insertion of a YSZ-Ag Inter layer

Authors
Choi, Sun HeeHwang, Cheol SeongLee, Min Hwan
Issue Date
2014-07
Publisher
ELECTROCHEMICAL SOC INC
Citation
ECS ELECTROCHEMISTRY LETTERS, v.3, no.9, pp.F57 - F59
Abstract
We previously demonstrated a freestanding micro solid oxide fuel cell where both the NiO-YSZ anode and the lanthanum strontium manganite (LSM)-YSZ cathode are deposited by the electrostatic spray deposition technique. In this report, a dramatic performance enhancement (41.3 -> 673 mWcm(-2) at 640 degrees C) is demonstrated by the insertion of a multi-layered YSZ-Ag thin film between the cathode and electrolyte without sacrificing the thermo-mechanical stability of the freestanding cell. The interlayer is found not only to reduce the Ohmic resistance, but also to improve the cathode performance by having the metallic Ag diffused into the cathode layer. (C) 2014 The Electrochemical Society. All rights reserved.
Keywords
OXIDE FUEL-CELLS; COMPOSITE CATHODES; MEMBRANES; SILVER; FABRICATION; OXIDE FUEL-CELLS; COMPOSITE CATHODES; MEMBRANES; SILVER; FABRICATION; Freestanding; Micro-SOFCs; YSZ-Ag
ISSN
2162-8726
URI
https://pubs.kist.re.kr/handle/201004/126652
DOI
10.1149/2.0011409eel
Appears in Collections:
KIST Article > 2014
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