Self-supported LaGaO3-based honeycomb-type solid ozide fuel cell with high volumetric power density

摘要：

A La0.9Sr0.1Ga0.8Mg0.2O3 (LSGM)-based honeycomb-type solid oxide fuel cell (SOFC) with a 0.5 mm thick electrolyte wall was successfully fabricated and operated. This cell shows a much higher volumetric power density than a ZrO2-based cell in the temperature range from 973 to 1173 K. Detailed results of internal resistance analysis suggest that IR loss is the predominant internal resistance of the cell. Furthermore, improved power density is achieved by decreasing LSGM electrolyte wall thickness. The effective area power densities are about 0.50 and 0.27 W/cm2 at 1073 and 973 K, respectively, using a 0.5 mm thick electrolyte wall. A 0.5 mm thick 4-wall cell was also successfully fabricated and operated at 1073 K; the estimated volumetric power density of this cell is as high as 600 W/L when fIve channels are used.

关键词： SOFCs Honeycomb-type LaGaO3 NiFe anode Volumetric power density

作者: Hao Zhong Hiroshige Matsumoto Tatsumi Ishihara Akira Toriyama

作者单位: Department of Applied Chemistry, Kyushu University, 7-4-4 Motooka, Nishi-Ku, Fukuoka 819-0395, Japan Department of Applied Chemistry, Kyushu University, 7-4-4 Motooka, Nishi-Ku, Fukuoka 819-0395, Japan Thinktank Phoenix Co.Ltd., Tokyo, Japan

会议类型: 国际会议

会议名称: The 16th International Conference on Solid State Ionics(第十六届国际固态离子学会议)

会议地点: 上海

会议语种:英文

页码: 1474-1477

在线出版日期: 2007-07-01（万方平台首次上网日期，不代表论文的发表时间）