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@INPROCEEDINGS{Ivanova:903693,
author = {Ivanova, Mariya and Deibert, Wendelin and Huang, Yuanye and
Merkle, Rotraut and Maier, Joachim and Meulenberg, Wilhelm
Albert},
title = {{F}abrication and upscaling of anode supported proton
conducting ceramic cells in planar design},
reportid = {FZJ-2021-05342},
year = {2021},
note = {Funding from BMBF, Germany (Grant Nr.: 03SF0537A,C) is
gratefully acknowledged. Mrs. A. Lewalter, PtJ, Jülich is
specially acknowledged for her engagement and guidance
throughout the duration of the project. Kerafol-Keramische
Folien GmbH $\&$ Co. KG, Eschenbach, Germany and Morgan
Advanced Materials Haldenwanger GmbH, Waldkraiburg, Germany
are highly acknowledged for their engagement and support. We
thank J. Deuschle, A. Fuchs, H. Hoier (MPI FKF Stuttgart)
and Y.-J. Sohn (IEK-1, Forschungszentrum Jülich GmbH) for
performing the SEM-EDX and XRD studies.},
abstract = {Protonic ceramic fuel cells offer a high potential to
produce electrical energy in a very efficient way. The
performance of such devices is highly dependent on the
electrolyte material and its thickness. In this work
half-cell assemblies, consisting of
Ba1.015Zr0.625Ce0.2Y0.175O3-δ electrolyte layer (final
thickness ≤ 15 µm) supported on much thicker porous
cermet Ba1.015Zr0.625Ce0.2Y0.175O3-δ:Ni anode (final
thickness 350-700 µm), were developed via the inverse tape
casting processing technique. Powders were prepared by the
solid state reactive sintering and NiO was added to the
electrolyte powder sintering aid facilitating sintering. The
chemical composition and the physical characteristics of the
starting powders were thoroughly analyzed and by need,
adjusted to the tape casting fabrication process. The
shrinkage rates of electrolyte and anode substrate single
layers, as well as of the assemblies thereof were explored
by optical dilatometry in order to optimise the de-binding
and sintering procedures. Sintering experiments carried out
at different heating regimes showed that to achieve the
desired half-cell microstructure, including electrolyte gas
tightness and flat reproducible geometry of the assemblies,
sintering temperature of 1450°C was optimally required. The
influence of the processing and sintering parameters on the
final cell microstructure was investigated in details by XRD
and SEM-EDX studies. The formation of BaY2NiO5 transient
liquid phase during the sintering was confirmed. The
tape-cast cells were electrochemically characterized after
anode support reduction and the proton conductivity of the
electrolyte was 0.003 S/cm at 600°C, which is comparable to
the literature data. Finally, half-cell assemblies were
successfully scaled-up to 25 cm2 area. Finally, this work
demonstrates two key results: (i) the combination of tape
casting and reactive sintering is able to produce large-area
electrolyte-anode assemblies for a comparably low Ce content
of 20 $mol.\%$ and ii) the achieved total proton
conductivity is suitable for PCFC application.},
month = {Dec},
date = {2021-12-15},
organization = {European Fuel Cell and Hydrogen Piero
Lunghi Conference, Napoli (Italy), 15
Dec 2021 - 17 Dec 2021},
subtyp = {After Call},
cin = {IEK-1},
cid = {I:(DE-Juel1)IEK-1-20101013},
pnm = {1213 - Cell Design and Development (POF4-121) / 1231 -
Electrochemistry for Hydrogen (POF4-123) / Verbundvorhaben
ProtOMem: Entwicklung von protonenleitenden Membranen mit
optimierter Mikrostruktur und verbesserten
Transporteigenschaften für Energie- und
Wasserstoffseparationsanwendungen (03SF0537A) / SOFC - Solid
Oxide Fuel Cell (SOFC-20140602)},
pid = {G:(DE-HGF)POF4-1213 / G:(DE-HGF)POF4-1231 /
G:(BMBF)03SF0537A / G:(DE-Juel1)SOFC-20140602},
typ = {PUB:(DE-HGF)6},
url = {https://juser.fz-juelich.de/record/903693},
}