Microcrystal glass sealing material used for solid oxide fuel battery and sealing method thereof
Title：
Microcrystal glass sealing material used for solid oxide fuel battery and sealing method thereof
Application Number：
 200710118113
Application Date：
 2007/06/29
Announcement Date：
 2008/03/26
Pub. Date：
Publication Number：
 101148322
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 C03C 8/24, C03C 10/00
Applicant(s)：
 Tsinghua University
Inventor(s)：
 Gao Ruifeng, Zeng Fanrong, Mao Zongqiang, Liu Zhixiang, Wang Cheng
Key Words：
 Microcrystal glass, sealing material, solid oxide fuel battery, sealing method
Abstract：
 The present invention is microcrystalline glass sealing material and sealing process for solid oxide fuel cell, and belongs to the field of fuel cell technology. The microcrystalline glass sealing material consists of BaO 7-50 mol%, B2O3 17-84 mol%, Al2O3 0-27 mol%, SrO 2-38 mol%, La2O3 0-30 mol%, NiO 0-5 mol%, SiO2 0-15 mol%, TiO2 0-5 mol% and ZnO 0-20 mol%. Its sealing process includes the steps of compounding material, smelting at 1000-1550 deg.c, forming, crushing, preparing blank, maintaining at 650-750 deg.c for 0.5-2 hr, cooling to 450-600 deg.c for nucleating, crystallizing at 600-700 deg.c and cooling. The microcrystalline glass sealing material has long term stability in oxidation reduction atmosphere and excellent matching performance to cerium oxide-based and lanthanum gallate-based electrolyte material and ferrochrome alloy in wettability and thermal expansion coefficient, and is suitable for use at 300-700 deg.c.
Claim：
Priority：
PCT：
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2008-4-17
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