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Determining the Composition of Carbonate Solvent Systems Used in Lithium-Ion Batteries without Salt Removal
- Source :
- Energies; Volume 15; Issue 8; Pages: 2805
- Publication Year :
- 2022
- Publisher :
- MDPI AG, 2022.
-
Abstract
- In this work, two methods were investigated for determining the composition of carbonate solvent systems used in lithium-ion (Li-ion) battery electrolytes. One method was based on comprehensive two-dimensional gas chromatography with electron ionization time-of-flight mass spectrometry (GC×GC/EI TOF MS), which often enables unknown compound identification by their electron ionization (EI) mass spectra. The other method was based on comprehensive two-dimensional gas chromatography with flame ionization detection (GC×GC/FID). Both methods were used to determine the concentrations of six different commonly used carbonates in Li-ion battery electrolytes (i.e., ethylene carbonate (EC), propylene carbonate (PC), dimethyl carbonate (DMC), diethyl carbonate (DEC), ethyl methyl carbonate (EMC), and vinylene carbonate (VC) in model compound mixtures (MCMs), single-blind samples (SBS), and a commercially obtained electrolyte solution (COES). Both methods were found to be precise (uncertainty < 5%), accurate (error < 5%), and sensitive (limit of detection
- Subjects :
- Control and Optimization
Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Electrical and Electronic Engineering
lithium-ion batteries
electrolyte
two-dimensional gas chromatography (GC×GC)
mass spectrometry (MS)
flame ionization detector (FID)
analytical techniques
Engineering (miscellaneous)
Energy (miscellaneous)
Subjects
Details
- ISSN :
- 19961073
- Volume :
- 15
- Database :
- OpenAIRE
- Journal :
- Energies
- Accession number :
- edsair.doi.dedup.....74fb3d228a4874d1328a0d3192660a2f
- Full Text :
- https://doi.org/10.3390/en15082805