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@PHDTHESIS{Ye:1008187,
author = {Ye, Ruijie},
title = {{S}ustainable {F}abrication of {C}eramic {S}olid
{E}lectrolytes for {S}olid-{S}tate {L}ithium {B}atteries},
volume = {607},
school = {RWTH Aachen University},
type = {Dissertation},
address = {Jülich},
publisher = {Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag},
reportid = {FZJ-2023-02233},
isbn = {978-3-95806-694-6},
series = {Schriften des Forschungszentrums Jülich Reihe Energie $\&$
Umwelt / Energy $\&$ Environment},
pages = {vi, 119},
year = {2023},
note = {Dissertation, RWTH Aachen University, 2023},
abstract = {Solid-state lithium batteries (SSLBs) are considered to be
one of the most promising nextgeneration Li batteries due to
their high capacity and intrinsic safety. Their sustainable
processing offers additional advantages over conventional
batteries in terms of ecological and economicbenefits.
However, the sustainable processing of SSLBs has been only
sporadically investigated and need to be optimized.
Garnet-type Li7La3Zr2O12 (LLZO) is one representative of
oxide-based solid electrolytes (SE) for SSLBs. A thin
freestanding LLZO sheet can be fabricated by tape-casting
and used e.g. as separator in SSLBs, since tape-casting is
an industrially established process and enables large-scale
production of such SEs. However, organic solvents and
additives employed in conventional slurry recipes for
tape-casting give rise to health and safety concerns and
additionally cause high cost for solvent recovery. Hence,
development of a water-based processing route reduces both
manufacturing costs and environmental footprint. In this
work, a tape-casting process for LLZO SEs is developed using
water as solvent, the watersolublebiopolymer as binder and
other harmless polymers as plasticizers. During the aqueous
processing, a Li+/H+ exchange takes place, but this Li+/H+
exchange reaction is reversible in the procedure and results
in the formation of stoichiometric cubic LLZO at the end.
The obtained freestanding LLZO thin sheets have a relative
density of $90\%$ to the theoretical density and exhibit an
ionic conductivity of 0.15 mS cm-1 at room temperature.},
cin = {IEK-1},
cid = {I:(DE-Juel1)IEK-1-20101013},
pnm = {899 - ohne Topic (POF4-899)},
pid = {G:(DE-HGF)POF4-899},
typ = {PUB:(DE-HGF)3 / PUB:(DE-HGF)11},
doi = {10.34734/FZJ-2023-02233},
url = {https://juser.fz-juelich.de/record/1008187},
}