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Electrochemical performance of plasma sprayed metal supported planar solid oxide fuel cells
University West, Department of Engineering Science, Division of Manufacturing Processes. (PTW)ORCID iD: 0000-0002-2857-0975
Karlsruhe Institute of Technology, Karlsruhe, Germany .
University West, Department of Engineering Science, Division of Production Engineering. (PTW)ORCID iD: 0000-0002-9578-4076
Oerlikon Metco, Wohlen, Switzerland.
2015 (English)In: ECS Transactions, ISSN 1938-5862, E-ISSN 1938-6737, Vol. 68, no 1, p. 1791-1802Article in journal (Refereed) Published
Abstract [en]

High production cost is one of the major barriers to widespread commercialization of solid oxide fuel cells (SOFCs). Thermal spray techniques are a low cost alternative for the production of SOFCs. The objective of this work was to evaluate the electrochemical performance of half-cells produced by plasma spraying. The anode was deposited on a porous metallic support by atmospheric plasma spraying (APS) whereas the electrolyte was deposited by plasma spray-thin film (PS-TF) technique which can produce thin and dense coatings at high deposition rates. The cathode was deposited by screen-printing. The electrochemical tests were performed at 650-800°C. Current-voltage characteristics and impedance spectra were measured and analyzed. The impact of electrolyte composition and layer thickness on the gas tightness of the electrolyte and the area specific resistance of the cell is discussed. The results show that the applied thermal spraying techniques are a potential alternative for producing SOFCs. © The Electrochemical Society.

Place, publisher, year, edition, pages
2015. Vol. 68, no 1, p. 1791-1802
Keywords [en]
Current voltage characteristics; Deposition; Deposition rates; Electrodes; Electrolytes; Fuel cells; Fuel storage; Gas fuel purification; Plasma jets; Plasma spraying; Screen printing; Solid oxide fuel cells (SOFC); Thermal spraying, Area-specific resistances; Atmospheric plasma spraying; Electrochemical performance; Electrolyte compositions; High deposition rates; Planar solid oxide fuel cells; Solid oxide fuel cells (SOFCs); Thermal spray techniques, Solid electrolytes
National Category
Manufacturing, Surface and Joining Technology
Research subject
ENGINEERING, Manufacturing and materials engineering
Identifiers
URN: urn:nbn:se:hv:diva-8047DOI: 10.1149/06801.1791ecstScopus ID: 2-s2.0-84938775385OAI: oai:DiVA.org:hv-8047DiVA, id: diva2:850348
Conference
14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015; held as part of the Electrochemical Society, ECS Conference on Electrochemical Energy Conversion and Storage; Glasgow; United Kingdom; 26 July 2015 through 31 July 2015
Note

 Code:113202

Available from: 2015-09-01 Created: 2015-09-01 Last updated: 2017-12-04Bibliographically approved

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Gupta, Mohit KumarMarkocsan, Nicolaie

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