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@ARTICLE{Wilken:828979,
author = {Wilken, A. and Kraft, V. and Girod, S. and Winter, M. and
Nowak, S.},
title = {{A} fluoride-selective electrode ({F}se) for the
quantification of fluoride in lithium-ion battery ({L}ib)
electrolytes},
journal = {Analytical methods},
volume = {8},
number = {38},
issn = {1759-9679},
address = {Cambridge},
publisher = {RSC Publ.},
reportid = {FZJ-2017-02796},
pages = {6932 - 6940},
year = {2016},
abstract = {In this work, a fluoride-selective electrode (FSE) was
applied with regard to the analysis of fluoride in lithium
hexafluorophosphate-based lithium-ion battery (LIB)
electrolytes. The influence of linear organic carbonate
solvents dimethyl carbonate (DMC), ethyl methyl carbonate
(EMC) and diethyl carbonate (DEC) which are used as
co-solvents in battery electrolytes was investigated. The
developed FSE method for the analysis of battery
electrolytes was comprehensively validated in view of the
(1) trueness and recovery rates (nominal vs. actual
comparison; influence of different amounts of electrolytes
on the performance of the electrode; recovery rates of
defined differences in concentration), (2) precision
(intra-day precision and inter-day precision), (3)
selectivity (influence of the carbonate solvents on
different fluoride concentrations; interferents) and (4)
linearity and range. Statistical analysis was performed to
evaluate the data and to characterize the reproducibility of
the method. The determination of the commercially available
LP30 (1 mol LiPF6 and ethylene carbonate/dimethyl carbonate
(EC : DMC, 50 : 50 $wt\%))$ electrolyte stored over 47 days
and at 80 °C, by the FSE technique was compared to the
fluoride analysis by ion chromatography (IC). While
interferences in the IC method resulted in false-high
concentrations, the FSE operated free from interferences,
selective and specific. The validation of the method was
successfully carried out and enables new areas of
application.},
cin = {IEK-12},
ddc = {540},
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:000385380800014},
doi = {10.1039/C6AY02264B},
url = {https://juser.fz-juelich.de/record/828979},
}