% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@ARTICLE{Nowak:1025075,
author = {Nowak, Sascha and Kubot, Maximilian and Winter, Martin and
Kasnatscheew, Johannes and Muschiol, Elisabeth},
title = {{F}ormation and {S}uppression of {T}oxic
{O}rganofluorophosphates in {L}ithium {I}on {B}atteries:
{M}aking the {H}igh-{V}oltage {A}dditive {L}ithium
{D}ifluorophosphate {V}iable for {C}ommercial
{A}pplications},
journal = {Meeting abstracts},
volume = {MA2023-01},
number = {2},
issn = {1091-8213},
address = {Pennington, NJ},
publisher = {Soc.},
reportid = {FZJ-2024-02663},
pages = {645 - 645},
year = {2023},
note = {Hierbei handelt es sich lediglich um einen Abstract.},
abstract = {Organofluorophosphates (OFPs) are one of the major concerns
regarding the safety of Lithium Ion Batteries (LIBs) due to
their neurotoxic properties. The formation through the
hydrolysis of the conducting salt LiPF6 and subsequent
reactions (reductive/oxidative) with the cyclic and linear
carbonates is a major drawback in terms of commercial
application of LIBs. The additive Lithium Difluorophosphate,
which is literature known and beneficial for high-voltage
LIBs due to its transition metal (TM) capturing abilities,
accelerates the formation of toxic OFPs even further as it
also is a hydrolysis product of LiPF6. The suppression of
the formation of toxic OFPs through a synergetic dual
additive approach with fluoroethylene carbonate (FEC) is
presented in this study. Here, the thermal- and
electrochemical formation of OFPs are successfully inhibited
with the addition of 2 $wt.\%$ of FEC to the electrolyte
containing LiDFP (1 $wt.\%).$ Characterization of OFPs is
conducted via high performance liquid chromatography mass
spectrometry and the toxicological capabilities of the aged
electrolyte is assed through an inhibition-evaluation of
Acetylcholinesterase lyophilizate. Combined, these two
methods illustrate the successful inhibition of OFP
formation in FEC/LiDFP dual-additive electrolytes. Further,
this dual-additive approach does not deteriorate the
performance of LiDFP as single additive making the FEC/LiDFP
additive combination a possible new benchmark for
high-voltage LIBs.},
cin = {IEK-12},
ddc = {540},
cid = {I:(DE-Juel1)IEK-12-20141217},
pnm = {1221 - Fundamentals and Materials (POF4-122)},
pid = {G:(DE-HGF)POF4-1221},
typ = {PUB:(DE-HGF)16},
doi = {10.1149/MA2023-012645mtgabs},
url = {https://juser.fz-juelich.de/record/1025075},
}