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

被引：9

作者：

Choi, Sun Hee ^{[1
]}

Hwang, Cheol Seong ^{[2
]}

Lee, Min Hwan ^{[3
]}

机构：

[1] Korea Inst Sci & Technol, Fuel Cell Res Ctr, Seoul 136791, South Korea

[2] Seoul Natl Univ, Dept Mat Sci & Engn, Seoul 151742, South Korea

[3] Univ Calif Merced, Sch Engn, Merced, CA 95343 USA

来源：

ECS ELECTROCHEMISTRY LETTERS | 2014年 / 3卷 / 09期

关键词：

OXIDE FUEL-CELLS; COMPOSITE CATHODES; MEMBRANES; SILVER; FABRICATION;

D O I：

10.1149/2.0011409eel

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

070208 [无线电物理];

摘要：

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.

引用

页码：F57 / F59

页数：3

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