Abstract No.:
5277

 Scheduled at:
Wednesday, June 07, 2017, Hall 12 3:00 PM
Power Generation - Fuel Cell


 Title:
A new technology for spraying advanced low-temperature (300~600 °C) solid oxide fuel cells

 Authors:
Kang Yuan* / BGRIMM Technology Group, P.R. China
Yueguang Yu / Beijing General Research Institute of Mining and Metallurgy, China
Xiaoliang Lu/ Beijing General Research Institute of Mining and Metallurgy, China
Bin Zhu/ Royal Institute of Technology, Sweden

 Abstract:
The conventional high-temperature (1000 °C) Solid Oxide Fuel Cells (SOFCs) have developed for a hundred year and met a great challenge on material design, manufacture cost, production and marketing. In the recent decade, various new SOFC materials are dug up to achieve high energy-outputting performance (e 1000 mW/cm2 per cell) at lower working temperature (300~600 °C) for long material life and low cost, which are essentially potential for real marketing applications. In this study, Ni-Co-Al-Li (NCAL) oxide powder (powder size of 5~25 um) was used for making dense, thin and uniform protective coatings on 60*60 mm2 grooved substrate. High uniformity of the coating thickness and low surface roughness were highly recommended. Our previous results have indicated that conventional plasma spray processes like APS can hardly meet such standard. Therefore, a new spray technology, namely low-pressure plasma spray (LPPS), was applied to manufacture the NCAL coatings for the high quality. Mechanism of the coating formation in the LPPS process was discussed. The performance of a fuel cell package containing the coated units was also tested between 300 and 600 °C. The LPPS technology is believed to be a ultimate way for manufacturing the low-temperature SOFC for marketing applications in future .

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