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@ARTICLE{Herbers:1024927,
author = {Herbers, Lukas and Küpers, Verena and Winter, Martin and
Bieker, Peter},
title = {{A}n ionic liquid- and {PEO}-based ternary polymer
electrolyte for lithium metal batteries: an advanced
processing solvent-free approach for solid electrolyte
processing},
journal = {RSC Advances},
volume = {13},
number = {26},
issn = {2046-2069},
address = {London},
publisher = {RSC Publishing},
reportid = {FZJ-2024-02577},
pages = {17947 - 17958},
year = {2023},
abstract = {A processing solvent-free manufacturing process for
cross-linked ternary solid polymer electrolytes (TSPEs) is
presented. Ternary electrolytes (PEODA, Pyr14TFSI, LiTFSI)
with high ionic conductivities of >1 mS cm−1 are obtained.
It is shown that an increased LiTFSI content in the
formulation (10 $wt\%$ to 30 $wt\%)$ decreases the risk of
short-circuits by HSAL significantly. The practical areal
capacity increases by more than a factor of 20 from 0.42 mA
h cm−2 to 8.80 mA h cm−2 before a short-circuit occurs.
With increasing Pyr14TFSI content, the temperature
dependency of the ionic conductivity changes from
Vogel–Fulcher–Tammann to Arrhenius behavior, leading to
activation energies for the ion conduction of 0.23 eV. In
addition, high Coulombic efficiencies of $93\%$ in Cu‖Li
cells and limiting current densities of 0.46 mA cm−2 in
Li‖Li cells were obtained. Due to a temperature stability
of >300 °C the electrolyte guarantees high safety in a
broad window of conditions. In LFP‖Li cells, a high
discharge capacity of 150 mA h g−1 after 100 cycles at 60
°C was achieved.},
cin = {IEK-12},
ddc = {540},
cid = {I:(DE-Juel1)IEK-12-20141217},
pnm = {1221 - Fundamentals and Materials (POF4-122) / BACCARA -
Battery and superCapacitor ChARActerization and testing
(608491)},
pid = {G:(DE-HGF)POF4-1221 / G:(EU-Grant)608491},
typ = {PUB:(DE-HGF)16},
pubmed = {37323458},
UT = {WOS:001006393700001},
doi = {10.1039/D3RA02488A},
url = {https://juser.fz-juelich.de/record/1024927},
}