Investigation on silver electric adhesive doped with Al2O3 ceramic particles for sealing planar solid oxide fuel cell

被引：19

作者：

Zhou, Xiaoliang ^{[1
,2
,3
]}

Sun, Kening ^{[1
,3
]}

Yan, Yan ^{[3
]}

Le, Shiru ^{[1
,3
]}

Zhang, Naiqing ^{[1
,3
]}

Sun, Wang ^{[3
]}

Wang, Peng ^{[2
]}

机构：

[1] Acad Fundamental & Interdisciplinary Sci, Harbin Inst Technol, Ctr Sci Res, Harbin 150080, Peoples R China

[2] Harbin Inst Technol, Sch Municipal & Environm Engn, Harbin 150090, Peoples R China

[3] Harbin Inst Technol, Dept Appl Chem, Harbin 150001, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2009年 / 192卷 / 02期

基金：

中国博士后科学基金;

关键词：

Solid oxide fuel cell; Sealing; Silver electric adhesive; Alumina ceramic particles; COMPRESSIVE MICA SEALS; MICROSTRUCTURE;

D O I：

10.1016/j.jpowsour.2009.03.047

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：

The silver electric adhesive doped with Al2O3 Ceramic particles is used as sealing material for planar solid oxide fuel cell (SOFC). The sealing temperature of this sealing material is 600 degrees C with the heating rate of 2 degrees C min(-1), and the minimal leak rate ranges from 0.030 sccm cm(-1) to 0.040 sccm cm(-1). When doping 15 mass% Al2O3 ceramic particles into this sealing material, the thermal expansion coefficient of this material decreases from 20 ppm K-1 to 15 ppm K-1. which improves the thermal matching performance and the long-term stability of the material significantly. When using the gradient sealing method with the pure silver electric adhesive and the silver electric adhesive doped with Al2O3 ceramic particles to seal the interface of Ni-YSZ/SUS430 in the simulating cell, the minimal leak rate of 0.035 sccm cm(-1) is obtained for the cell. Furthermore, the simulating cell sealed with the compound silver electric adhesive presents good heat-resistant impact ability. Therefore, this compound sealing technique is a very promising sealing method for SOFC. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：408 / 413

页数：6

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