File(s) under permanent embargo
The anion effect in ternary electrolyte systems using poly(diallyldimethylammonium) and phosphonium-based ionic liquid with high lithium salt concentration
journal contribution
posted on 2018-12-01, 00:00 authored by Ruhamah Yunis, Gaetan Girard, Xiaoen Wang, Haijin Zhu, A J Bhattacharyya, Patrick HowlettPatrick Howlett, D R MacFarlane, Maria ForsythMaria Forsyth© 2018 Poly(dialyldimethylammonium) (PDADMA) is a popular host for ion gel or composite polymer electrolytes for lithium batteries. Novel ternary systems are synthesised in this work by mixing high concentrations of lithium salt (lithium bis(fluorosulfonyl)imide (LiFSI)) with trimethylisobutylphosphonium bis(fluorosulfonyl)imide ([P111i4FSI) and PDADMA FSI. The aim of this work is to provide a comparison of the FSI-system with NTf2-system. Phase behaviour, structure and transport properties of these ternary systems were investigated using thermal gravimetric analysis (TGA), differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), electrochemical impedance spectroscopy (EIS), attenuated total reflectance fourier transform infrared spectroscopy (ATR-FTIR) and solid state nuclear magnetic resonance (solid-state NMR). A free standing flexible and transparent membrane is obtained with 60:40 wt% (Electrolyte (3.8 m LiFSI in P111i4FSI (LiFSI/IL)): PDADMA FSI), attaining a conductivity of 0.49 mS/cm at 40 °C with a Li+ transference number of 0.21 at 50 °C.
History
Journal
Solid State IonicsVolume
327Pagination
83 - 92Publisher
ElsevierLocation
Amsterdam, The NetherlandsPublisher DOI
ISSN
0167-2738Language
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2018, ElsevierUsage metrics
Keywords
Poly(diallyldimethylammonium)Bis(fluorosulfonyl)imideTrimethylisobutylphosphoniumFree-standing membraneLithium-ion batteryPolymerScience & TechnologyPhysical SciencesChemistry, PhysicalPhysics, Condensed MatterChemistryPhysicsPoly(diallyldimethylanunonium)Tree-standing membraneBATTERIESMECHANISMDIFFUSIONNUMBERCondensed Matter Physics
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC