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@ARTICLE{Ghaur:1009089,
author = {Ghaur, Adjmal and Pfeiffer, Felix and Diddens, Diddo and
Peschel, Christoph and Dienwiebel, Iris and Du, Leilei and
Profanter, Laurin and Weiling, Matthias and Winter, Martin
and Placke, Tobias and Nowak, Sascha and Baghernejad,
Masoud},
title = {{M}olecular‐{C}ling‐{E}ffect of {F}luoroethylene
{C}arbonate {C}haracterized via
{E}thoxy(pentafluoro)cyclotriphosphazene on {S}i{O}x/{C}
{A}node {M}aterials – {A} {N}ew {P}erspective for
{F}ormerly {S}ub‐{S}ufficient {SEI} {F}orming {A}dditive
{C}ompounds},
journal = {Small},
volume = {19},
number = {44},
issn = {1613-6810},
address = {Weinheim},
publisher = {Wiley-VCH},
reportid = {FZJ-2023-02628},
pages = {2302486},
year = {2023},
abstract = {Effective electrolyte compositions are of primary
importance in raising the performance of lithium-ion
batteries (LIBs). Recently, fluorinated cyclic phosphazenes
in combination with fluoroethylene carbonate (FEC) have been
introduced as promising electrolyte additives, which can
decompose to form an effective dense, uniform, and thin
protective layer on the surface of electrodes. Although the
basic electrochemical aspects of cyclic fluorinated
phosphazenes combined with FEC were introduced, it is still
unclear how these two compounds interact constructively
during operation. This study investigates the complementary
effect of FEC and ethoxy(pentafluoro)cyclotriphosphazene
(EtPFPN) in aprotic organic electrolyte in
LiNi0.5Co0.2Mn0.3O ∥ SiOx/C full cells. The formation
mechanism of lithium ethyl methyl carbonate (LEMC)-EtPFPN
interphasial intermediate products and the reaction
mechanism of lithium alkoxide with EtPFPN are proposed and
supported by Density Functional Theory calculations. A novel
property of FEC is also discussed here, called
molecular-cling-effect (MCE). To the best knowledge, the MCE
has not been reported in the literature, although FEC
belongs to one of the most investigated electrolyte
additives. The beneficial MCE of FEC toward the
sub-sufficient solid-electrolyte interphase forming additive
compound EtPFPN is investigated via gas chromatography-mass
spectrometry, gas chromatography high resolution-accurate
mass spectrometry, in situ shell-isolated
nanoparticle-enhanced Raman spectroscopy, and scanning
electron microscopy.},
cin = {IEK-12},
ddc = {620},
cid = {I:(DE-Juel1)IEK-12-20141217},
pnm = {1222 - Components and Cells (POF4-122) / 1221 -
Fundamentals and Materials (POF4-122) /
Elektrolytformulierungen für Lithiumbatterien der nächsten
Generation mit großer Energiedichte und hoher
Beständigkeit (13XP5129)},
pid = {G:(DE-HGF)POF4-1222 / G:(DE-HGF)POF4-1221 /
G:(BMBF)13XP5129},
typ = {PUB:(DE-HGF)16},
pubmed = {37403278},
UT = {WOS:001022760900001},
doi = {10.1002/smll.202302486},
url = {https://juser.fz-juelich.de/record/1009089},
}