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@ARTICLE{Antonio:141012,
author = {Antonio, Bertei and Mertens, Josef and Nicolella,
Cristiano},
title = {{E}lectrochemical {S}imulation of {P}lanar {S}olid {O}xide
{F}uel {C}ells with {D}etailed {M}icrostructural{M}odeling},
journal = {Electrochimica acta},
volume = {146},
issn = {0013-4686},
address = {New York, NY [u.a.]},
publisher = {Elsevier},
reportid = {FZJ-2013-06221},
pages = {151-163},
year = {2014},
abstract = {Abstract: A quasi-two-dimensional physically-based model
for the description of transport andreaction in planar solid
oxide fuel cells (SOFC) is presented in this study.
Electrochemistry andtransport phenomena in the cell are
locally described in 2D using mass conservation equations
andwell-established global electro-kinetics, coupled with
the 1D representation of gas channels in both coflowand
counter-flow configurations. The key feature of the model
consists in the numericalreconstruction, through packing
algorithms, of the three-dimensional microstructure of each
porouslayer for an accurate evaluation of the effective
properties. Coupling of a detailed microstructuralmodeling
into the cell-level electrochemical model allows the
prediction of the polarization behaviorfrom the knowledge of
operating conditions and powder characteristics, thus
eliminating the need forempirical correlations and adjusted
parameters, which is typically the weak point of existing
cell-levelmodels. The framework is used for the simulation
of a short stack of anode-supported cells with
LSMbasedcathode and 1.5mm thick anode support, developed and
tested by Forschungszentrum Jülich.The effective properties
of each layer are calculated and compared with available
experimental data. Agood agreement is also reached when
comparing simulated and experimental polarization
curvesunder different operating conditions without fitting
any parameter. Simulations show that at 800°C theactivation
resistance in the cathode functional layer is the main
contribution to the cell overpotential.In addition, the
model suggests that gas concentration effects at the anode
play an important role onthe global electrochemical
response. The study shows that quantitative predictions can
be obtainedusing this integrated approach, making it an
attractive tool to assist the SOFC development.},
cin = {IEK-9},
ddc = {540},
cid = {I:(DE-Juel1)IEK-9-20110218},
pnm = {123 - Fuel Cells (POF2-123) / 152 - Renewable Energies
(POF2-152)},
pid = {G:(DE-HGF)POF2-123 / G:(DE-HGF)POF2-152},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000345226100021},
doi = {10.1016/j.electacta.2014.08.120},
url = {https://juser.fz-juelich.de/record/141012},
}