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

Title
Performance Enhancement of Freestanding Micro-SOFCs with Ceramic Electrodes by the Insertion of a YSZ-Ag Interlayer
Authors
최선희황철성이민환
Keywords
Freestanding; Micro-SOFCs; YSZ-Ag
Issue Date
2014-07
Publisher
ECS Electrochemistry Letters
Citation
VOL 3, NO 9, 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°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.
URI
http://pubs.kist.re.kr/handle/201004/47893
ISSN
21628726
Appears in Collections:
KIST Publication > Article
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