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@ARTICLE{Berger:202074,
author = {Berger, Cornelius and Tokariev, Oleg A. and Orzessek, Peter
and Hospach, Andreas and Fang, Qingping and Bram, Martin and
Quadakkers, Willem J. and Menzler, Norbert H. and
Buchkremer, Hans P.},
title = {{D}evelopment of storage materials for high-temperature
rechargeable oxide batteries},
journal = {Journal of energy storage},
volume = {1},
issn = {2352-152X},
address = {Amsterdam [u.a.]},
publisher = {Elsevier},
reportid = {FZJ-2015-04363},
pages = {54-64},
year = {2015},
abstract = {A high-temperature rechargeable oxide battery (ROB)
comprises a regenerative solid oxide cell (SOC) and
oxygen-ion storage that consists of a porous Fe2O3 base
redox material. This material possesses good redox kinetics,
a high oxygen-ion storage capacity, and an acceptable
long-term stability. Yet, observations demonstrate
degradation effects such as particle coarsening and an
outward diffusion of iron leading to layer formation during
operation of the ROB at 800 °C.To clarify the influence of
the material composition on degradation, various oxides were
added as a stabilizing scaffold for the Fe2O3 base material.
Pressed samples of the binary mixtures were sintered in air
at 900 °C and subsequently redox-treated up to 20 times
under conditions that simulate those present in an actual
ROB (800 °C, $Ar–2\%H2$ or $Ar–7\%H2O–2\%H2).$
Afterwards, the degradation properties were analyzed by
laser microscopy and the phase composition was measured
using X-ray diffraction. Results indicate that the addition
of yttria-stabilized zirconia (8YSZ) or pure zirconia (ZrO2)
can suppress structural degradation thus maintaining
reaction kinetics. In contrast, the use of yttria (Y2O3)
does not significantly mitigate degradation phenomena.
Consequently, storage components consisting of 8YSZ and
Fe2O3 were employed in an ROB test, resulting in more than
200 cycles with a current density of 150 mA/cm2 and cycle
durations of up to 70 min.},
cin = {IEK-1 / IEK-2 / IEK-3},
ddc = {333.7},
cid = {I:(DE-Juel1)IEK-1-20101013 / I:(DE-Juel1)IEK-2-20101013 /
I:(DE-Juel1)IEK-3-20101013},
pnm = {135 - Fuel Cells (POF3-135) / SOFC - Solid Oxide Fuel Cell
(SOFC-20140602) / HITEC - Helmholtz Interdisciplinary
Doctoral Training in Energy and Climate Research (HITEC)
(HITEC-20170406)},
pid = {G:(DE-HGF)POF3-135 / G:(DE-Juel1)SOFC-20140602 /
G:(DE-Juel1)HITEC-20170406},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000218491200007},
doi = {10.1016/j.est.2014.12.001},
url = {https://juser.fz-juelich.de/record/202074},
}