Metal-supported solid oxide fuel cell membranes for rapid thermal cycling

被引：152

作者：

Matus, YB

De Jonghe, LC

Jacobson, CP

Visco, SJ

机构：

[1] Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA

来源：

SOLID STATE IONICS | 2005年 / 176卷 / 5-6期

关键词：

thin film SOFC; metal support electrodes; thermal cycling; fast response;

D O I：

10.1016/j.ssi.2004.09.056

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Solid oxide fuel cell (SOFC) membranes were developed in which zirconia-based electrolyte thin films were supported by a porous composite metal/ceramic current collector and were subjected to rapid thermal cycling between 475 and 1075 K (200 and 800 degreesC). The effects of this cycling on membrane performance were evaluated. The membranes, not yet optimized for performance, showed a peak power density of 350 mW/cm(2) at 1175 K (900 degreesC) in laboratory-sized SOFCs, while rapid thermal cycling had only a marginal effect on cell performance. This resistance to cycling degradation is attributed to the close matching of thermal expansion coefficient of the porous cermet supporting current collector (PCC) with that of the zirconia electrolyte. Published by Elsevier B.V.

引用

页码：443 / 449

页数：7

共 20 条

[1] Colloidal processing of BaCeO3-based electrolyte films [J].