Reactive Spray Deposition Technology – An one-step deposition technique for Solid Oxide Fuel Cell barrier layers

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DOIResolve DOI: http://doi.org/10.1016/j.jpowsour.2010.06.053
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TypeArticle
Journal titleJournal of Power Sources
Volume195
Issue24
Pages81988201; # of pages: 4
SubjectSOFC; GDC; Barrier layer; Blocking layer; Low temperature SOFC; RSDT
AbstractIn order to reduce the cost of the manufacturing of Solid Oxide Fuel Cells (SOFC), and to enable metal supported cell fabrication, a new fabrication method called Reactive Spray Deposition Technology (RSDT) for direct deposition of the material onto ceramic or metal support for low temperature SOFC is currently being developed. The present work describes the effect on the performance of a SOFC when a Gd0.2Ce0.8O1.9 (GDC) layer has been introduced as diffusion barrier layer between the yttria stabilized zirconia(YSZ) electrolyte and the La0.6Sr0.4CoO3?delta (LSC) cathode. The dense, thin and fully crystalline GDC films were directly applied by RSDT, without any post-deposition heating or sintering step. The quality of the film and performance of the cell prepared by RSDT was compared to a GDC blocking layer deposited by screen printing (SP) and then sintered. The observed ohmic resistance of the ASC with a GDC layer deposited by RSDT is 0.24 Omega cm2, which is close to the expected theoretical value of 0.17 Omega cm2 for a 5-um thick 8 mol% yttria YSZ (8YSZ) electrolyte at 873 K.
Publication date
LanguageEnglish
AffiliationNRC Institute for Fuel Cell Innovation; National Research Council Canada
Peer reviewedYes
NPARC number16910712
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Record identifier152fc3ab-c941-47c7-90d4-3524a4c2b4ab
Record created2011-02-25
Record modified2016-05-09
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