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@INPROCEEDINGS{Rhrens:202763,
author = {Röhrens, Daniel and Blum, Ludger and de Haart, L.G.J. and
Malzbender, Jürgen and Margaritis, Nikolaos and Menzler,
Norbert H.},
title = {{S}olide {O}xide {C}ells - {D}evelopment {S}tatus at
{F}orschungszentrum {J}ülich},
reportid = {FZJ-2015-04945},
year = {2015},
abstract = {The development of solid oxide fuel cells (SOFCs) at
Forschungszentrum Jülich that started mid of the1990’s
achieved since then a very well advanced status.In fact,
anode supported cells with thin film 8YSZ electrolyte and
LSC cathode reached current density of approx. 3.5A/cm² at
700 °C. The high-chromium containing interconnect steel
Crofer 22 APU and its enhanced creep strengthmodification
Crofer 22 H are well established in the community.
Glass-ceramic sealing based stack design andoperation
strategies have been improved resulting in increased
mechanical robustness.Recently a 2 kW stack was operated for
5000 h revealing a degradation rate of only $0.3\%/kh.$
Short stacks arecurrently running for more than 64,000 h
with degradation rates of $0.7\%/kh$ and for > 34,500 h with
< $0.3\%/kh.$ As aspecial highlight, a 20 kW<sub>el</sub>
system based on four 5 kW stacks has also been operated
successfully.Recently also the use of the “classical”
SOFC as electrolyser (SOEC) has been introduced showing
moderatedegradation rates.A third approach is the
realization of the SOFC/SOEC system as a rechargeable oxide
battery (ROB). In such an ROBthe fuel side is filled with a
water vapour/hydrogen gas mixture and subsequently sealed
off. A metal (in initial studiesiron was used) which can be
reduced (charged) in SOEC mode and oxidized (discharged) in
fuel cell mode isintegrated in the steam/hydrogen
compartment.},
month = {Jun},
date = {2015-06-14},
organization = {11th International Conference on
Ceramic Materials and Components for
Energy and Environmental Applications,
Vancouver (Canada), 14 Jun 2015 - 19
Jun 2015},
subtyp = {Invited},
cin = {IEK-1 / IEK-2 / IEK-3 / IEK-9 / ZEA-1},
cid = {I:(DE-Juel1)IEK-1-20101013 / I:(DE-Juel1)IEK-2-20101013 /
I:(DE-Juel1)IEK-3-20101013 / I:(DE-Juel1)IEK-9-20110218 /
I:(DE-Juel1)ZEA-1-20090406},
pnm = {135 - Fuel Cells (POF3-135) / SOFC - Solid Oxide Fuel Cell
(SOFC-20140602)},
pid = {G:(DE-HGF)POF3-135 / G:(DE-Juel1)SOFC-20140602},
typ = {PUB:(DE-HGF)6},
url = {https://juser.fz-juelich.de/record/202763},
}