%0 Journal Article
%A Dagger, Tim
%A Henschel, Jonas
%A Rezaei Rad, Babak
%A Lürenbaum, Constantin
%A Schappacher, Falko M.
%A Winter, Martin
%A Nowak, Sascha
%T Investigating the lithium ion battery electrolyte additive tris (2,2,2-trifluoroethyl) phosphite by gas chromatography with a flame ionization detector (GC-FID)
%J RSC Advances
%V 7
%N 84
%@ 2046-2069
%C London
%I RSC Publishing
%M FZJ-2018-04808
%P 53048 - 53055
%D 2017
%X The quantification of lithium ion battery electrolyte additives provides challenges in terms of methods and instrumentation. In this work, the detectability of the flame retardant additive tris(2,2,2-trifluoroethyl) phosphite (TTFPi) differs unusually when added to a standard electrolyte (1 M LiPF6 in ethylene carbonate (EC)[thin space (1/6-em)]:[thin space (1/6-em)]dimethyl carbonate (DMC) 1[thin space (1/6-em)]:[thin space (1/6-em)]1 wt%) using gas chromatography with a flame ionization detector (GC-FID). In this work, nuclear magnetic resonance (NMR), ion trap time of flight mass spectrometry (IT-TOF™ MS) and gas chromatography-mass spectrometry (GC-MS) are used to investigate a pure TTFPi solution and a standard battery electrolyte with TTFPi as an additive with regard to parasitic TTFPi consuming reactions and different TTFPi concentrations, respectively. NMR and IT-TOF™ MS measurements confirm the chemical stability of the TTFPi/standard electrolyte mixture and concentration dependent GC-MS and GC-FID experiments indicate a premature FID saturation limit for TTFPi in presence of standard electrolyte. The findings explain the counterintuitive absence of TTFPi for higher concentrations and provide important information for future sample preparation.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000416049900002
%R 10.1039/C7RA09476K
%U https://juser.fz-juelich.de/record/851106