Silver wire seal design for planar solid oxide fuel cell stack

被引：66

作者：

Duquette, J ^{[1
]}

Petric, A ^{[1
]}

机构：

[1] McMaster Univ, Dept Mat Sci & Engn, Hamilton, ON L8S 4L7, Canada

来源：

JOURNAL OF POWER SOURCES | 2004年 / 137卷 / 01期

基金：

加拿大自然科学与工程研究理事会;

关键词：

solid oxide fuel cell; compression sealing; pressure test; interconnect design; silver gasket;

D O I：

10.1016/j.jpowsour.2004.05.038

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：

A method for sealing solid oxide fuel cells with silver wire gaskets was developed and tested. The 1.6 mm diameter gaskets were fitted into machined channels, 1.5 mm deep in the interconnect plates. The channels were machined into 430 stainless steel plate along the edge of both surfaces and around alternate gas inlets. The interconnect plates were 6.35 mm thick, 152.4 mm long and 76.2 mm wide. A one-cell-stack was assembled for pressure testing with a stainless steel sheet in place of the ceramic membrane. The gas connections were brazed to the stack with a nickel-chromium brazing alloy. The apparatus was bolted together and tested for gas leakage at 137.8 kPa between room temperature and 500 degreesC. At room temperature, the measured leak rate was 5.14 kPa min(-1). With the stack heated to 500 degreesC, the leak rate decreased to 75.8 Pa min(-1). (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：71 / 75

页数：5