Study on Properties of LSGM Electrolyte Made by Tape Casting Method and Applications in SOFC

被引：4

作者：

张乃庆 ^{[1
]}

孙克宁 ^{[2
]}

周德瑞 ^{[2
]}

贾德昌 ^{[3
]}

机构：

[1] Material Science and Engineering for Postoral Fellows,Harbin Institute of Technology

[2] Department of Applied Chemistry,Harbin Institute of Technology

[3] Material Science and Engineering for Pastoral Fellows,Harbin Institute of Technology

来源：

JournalofRareEarths | 2006年 / S1期

关键词：

solid oxide fuel cells; LSGM electrolyte; tape casting; isotatic pressing; rare earths;

D O I：

暂无

中图分类号：

TM911.4 [燃料电池];

学科分类号：

0808 ;

摘要：

<正>Solid oxide fuel cell is attracting more attention in recent years for its lower pollution emission and high energy convert efficiency. La0.9Sr0.1Ga0.8Mg0.2O3-δis a new kind of electrolyte for intermediate temperature SOFC. In this paper, La0.9Sr0.1Ga0.8Mg0.2O3-δ（LSGM） was prepared by solid state reaction method and formed by tape casting process to make a planar electrolyte. The appropriate amount of the dispersive was obtained by viscosity test. The densities of sintered samples increase with the increasing sintering temperature. It was found that the relative density of electrolyte can approach the value of 95 % by the isostatic pressing treatment of the green tape. The average thermal expansion coefficient of the LSGM is 11 .4×10-6 /℃at temperature range （200 ~ 1200℃）. Measurements of the current-voltage and power-current characteristics of the Hi-Air cell show that the open-circuit voltage is 1.067 V at 800℃, peak current density is 0.56 A·cm -2 and the maximum power output is 0.147 W·cm -2.

引用

页码：90 / 92

页数：3

共 4 条

[1]

Effect of rheological behavior on properties of cast and sintered SiC. Liu D M,Fu C T. Ceramics International . 1996

[2]

Solid oxide fuel cell: fundamental aspects and prospects. Osamu Yamamoto. Electrochimica Acta . 2000

[3]

A consortium approach to commercialized westinghouse solid oxide fuel cell technology. Allan Casanova. Journal of Powder Sources . 1998

[4]

Oxygen reduction mechanism at porous La1-x SrxCoO3-d Cathodes/La0.8Sr0.2Ga0.8Mg0.2O2.8 electrolyte interface for solid oxide fuel cells. Teruhisa Horita,Katsuhiko Yamaji,Natsuko Sakai, el al. Electrochimica Acta . 2001

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