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@ARTICLE{Dagger:851139,
author = {Dagger, Tim and Grützke, Martin and Reichert, Matthias and
Haetge, Jan and Nowak, Sascha and Winter, Martin and
Schappacher, Falko M.},
title = {{I}nvestigation of lithium ion battery electrolytes
containing flame retardants in combination with the film
forming electrolyte additives vinylene carbonate, vinyl
ethylene carbonate and fluoroethylene carbonate},
journal = {Journal of power sources},
volume = {372},
issn = {0378-7753},
address = {New York, NY [u.a.]},
publisher = {Elsevier},
reportid = {FZJ-2018-04841},
pages = {276 - 285},
year = {2017},
abstract = {In order to address the trade-off between the safety
lithium ion battery (LIB) electrolytes and their
electrochemical performance, synergetic effects of flame
retardant additives (FRs) in combination with film forming
additives (FFAs) are investigated. Triphenyl phosphate (TPP)
and a silicon-containing additive (WA) are applied as FRs to
improve the onset temperature of the thermal runaway of a
LIB standard electrolyte (LP57: 1 M LiPF6 in EC:EMC 3:7)
about 15 K and 28 K, respectively. The application of the
FRs in MCMB graphite/lithium metal and NMC111/lithium metal
three-electrode cells induces insufficiencies in terms of
charge/discharge cycling stability and rate capability.It is
investigated if the addition of FFAs can degrade the
insufficiencies that are induced by the FRs. Vinylene
carbonate, vinyl ethylene carbonate and fluoroethylene
carbonate are added to a mixture of LP57 with $10\%$ FR to
enhance the cycling performance via improved interphase
formation. Results reveal, that the rate capability of cells
containing TPP or WA is especially improved by addition of
$2\%$ or $5\%$ FEC, respectively.Postmortem analyses of the
electrodes by SEM and of the electrolyte by GC-MS are
performed. Direct correlations between the cycling behavior
during the C-rate study and the electrolyte decomposition
products are drawn.},
cin = {IEK-12},
ddc = {620},
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:000418392100033},
doi = {10.1016/j.jpowsour.2017.10.058},
url = {https://juser.fz-juelich.de/record/851139},
}