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Metal Supported Solid Oxide Cells with Multi-layered Thin Film Electrolyte Assembly

Han, Feng and Semerad, Robert and Szabo, Patric and Costa, Rémi (2018) Metal Supported Solid Oxide Cells with Multi-layered Thin Film Electrolyte Assembly. The 12th International Conference on Ceramic Materials and Components for Energy and Environmental Applications (CMCEE 2018), Singapore. (Unpublished)

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Abstract

Metal supported solid oxide cells (MS-SOCs) are of great importance for energy conversion devices, especially for mobile applications, due to the unique mechanical properties and potentials for reduction of manufacture cost. To avoid sintering process at high-temperature, a multi-layered thin-film electrolyte assembly of yttria stabilized zirconia (YSZ) and gadolinium doped ceria (GDC) has been developed through a combination of the dip-coating method and the electron beam physical vapor deposition (EB-PVD) at reduced processing temperature. Applying lanthanum strontium titanate (LST) based anode as intermediate supporting layer, the multi-layered electrolyte assembly with total thickness around 3 µm has been successfully implemented on metal supported half cells with size up to 9 x10 cm². Air leakage rate down to 0.5 Pa·m·s-1 has been achieved on the half cells. At 0.7 V, full cells with 4x4 cm² active lanthanum strontium cobalt ferrite (LSCF) cathodes demonstrated power density of 430 mW/cm² and 520 mW/cm² at 750 °C and 800 °C, respectively. Long term operation in fuel cell and electrolysis mode has been carried out over 2000 hours. The microstructure and the electrochemical performance of full cells have been investigated and discussed in detail. The research leading to these results are funded by the European Union‘s Seventh Framework Programme (FP7/2007-2013) for the Fuel Cells and Hydrogen Joint Technology Initiative under grant agreement n° 303429 (EVOLVE).

Item URL in elib:https://elib.dlr.de/123022/
Document Type:Conference or Workshop Item (Speech)
Title:Metal Supported Solid Oxide Cells with Multi-layered Thin Film Electrolyte Assembly
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Han, FengFeng.Han (at) dlr.dehttps://orcid.org/0000-0003-1904-134X
Semerad, RobertCeracoUNSPECIFIED
Szabo, PatricPatric.Szabo (at) dlr.deUNSPECIFIED
Costa, Rémiremi.costa (at) dlr.dehttps://orcid.org/0000-0002-3534-1935
Date:July 2018
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Unpublished
Keywords:MSC, SOFC, Thin film, Electrolyte
Event Title:The 12th International Conference on Ceramic Materials and Components for Energy and Environmental Applications (CMCEE 2018)
Event Location:Singapore
Event Type:international Conference
HGF - Research field:Energy
HGF - Program:Storage and Cross-linked Infrastructures
HGF - Program Themes:Fuel cells
DLR - Research area:Energy
DLR - Program:E SP - Energy Storage
DLR - Research theme (Project):E - Electrochemical Processes (Fuel Cells)
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Electrochemical Energy Technology
Deposited By: Han, Feng
Deposited On:19 Nov 2018 16:15
Last Modified:19 Nov 2018 16:15

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