ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Due to their direct conversion of electrochemical into electrical energy solid oxide fuel cells (SOFCs)have great potential for a future additional energy supply. Even in the last two years numerousdevelopers of SOFCs, both industry and research institutions, have demonstrated long-term stableoperation of stacks of various dimensions (ranging from 1 to 125 kWel, with durations of up to 25000hours of operation). Besides technical proof, single component availability (cells, bipolar plates,sealing…), stable and low-aging operation, as well as cost efficient manufacturing of the componentsis becoming more and more evident in preparation for a market launch.Close cooperation between SOFC stack developers, SOFC users and manufacturers of powders, semifinishedparts or stack components is a prerequisite for success.Within a collaboration project funded by the German Federal Ministry of Economics and Labor(BMWA) the development of an SOFC as an auxiliary power unit (APU) is being promoted. Theindustrial users are BMW for automotive applications and Liebherr for use in construction vehicles oraircraft.The content of this presentation will be the transfer of the manufacturing knowledge developed atResearch Center Jülich to CeramTec; including on the one hand the problems and limitations and, onthe other hand the successes and positive perceptions. In detail, the transfer of, for example tapecasting and screen printing will be addressed, powder characteristics concerning paste or slipformulation and special tests with reference to SOFCs are presented, and single cell tests of variouscells manufactured with different powders or fabrication processes are described.Additionally, some remarks will concern different priorities in either R&D or industry (e.g. R&D:high power density; industry: reproducibility), process windows for manufacturing and the search foralternative fabrication methods
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/15/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.539-543.1315.pdf
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