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@ARTICLE{Janssen:863382,
author = {Janssen, Pia and Kasnatscheew, Johannes and Streipert,
Benjamin and Wendt, Christian and Murmann, Patrick and
Ponomarenko, Maksym and Stubbmann-Kazakova, Olesya and
Röschenthaler, Gerd-Volker and Winter, Martin and
Cekic-Laskovic, Isidora},
title = {{F}luorinated {E}lectrolyte {C}ompound as a
{B}i-{F}unctional {I}nterphase {A}dditive for {B}oth,
{A}nodes and {C}athodes in {L}ithium-{I}on {B}atteries},
journal = {Journal of the Electrochemical Society},
volume = {165},
number = {14},
issn = {1945-7111},
address = {Pennington, NJ},
publisher = {Electrochemical Soc.},
reportid = {FZJ-2019-03455},
pages = {A3525 - A3530},
year = {2018},
abstract = {Lithium-bis(hexafluorobutan-2,3-diol)-borate (R1S),
synthesized as a novel electrolyte component in lithium-ion
battery (LIB) cells, was evaluated and introduced as a
bifunctional interphase additive for both, anodes and
cathodes with the purpose of improving the cell performance
during high voltage operation. For the graphite based anode
it was demonstrated, that the additive could diminish the
amount of parasitic capacity required for the formation of
an effective solid electrolyte interphase (SEI), which could
be concluded from improved Coulombic efficiency data. In
parallel, improved capacity retention on the cathode
attributed to an altered cathode electrolyte interphase
(CEI) by the same additive was observed. Contrary to the CEI
formed by the benchmark electrolyte formulation, the
interphase of the additive containing electrolyte
formulation is significantly influenced in an
electrochemical manner (oxidation reactions), as derived
from potentiodynamic measurements. As a result, the
additive-tuned CEI was found smoother and less resistive
compared to the additive-free counterpart, which was
demonstrated by electrochemical impedance spectroscopy
(EIS), X-ray photoelectron spectroscopy (XPS) and scanning
electron microscopy (SEM) of the harvested
LiNi1/3Co1/3Mn1/3O2 (NMC111) electrodes after
charge/discharge cycling. The simultaneous improvement of
the interphases on cathode and anode by the additive could
finally enhance the overall performance of a NMC111/graphite
cell.},
cin = {IEK-12},
ddc = {660},
cid = {I:(DE-Juel1)IEK-12-20141217},
pnm = {131 - Electrochemical Storage (POF3-131)},
pid = {G:(DE-HGF)POF3-131},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000450275800001},
doi = {10.1149/2.1221814jes},
url = {https://juser.fz-juelich.de/record/863382},
}