TY - JOUR
T1 - The anion effect in ternary electrolyte systems using poly(diallyldimethylammonium) and phosphonium-based ionic liquid with high lithium salt concentration
AU - Yunis, Ruhamah
AU - Girard, Gaetan M.A.
AU - Wang, Xiaoen
AU - Zhu, Haijin
AU - Bhattacharyya, Aninda J.
AU - Howlett, Patrick
AU - MacFarlane, Douglas R.
AU - Forsyth, Maria
N1 - Publisher Copyright:
© 2018
PY - 2018/12/1
Y1 - 2018/12/1
N2 - 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.
AB - 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.
KW - Bis(fluorosulfonyl)imide
KW - Free-standing membrane
KW - Lithium-ion battery
KW - Poly(diallyldimethylammonium)
KW - Polymer
KW - Trimethylisobutylphosphonium
UR - http://www.scopus.com/inward/record.url?scp=85055657875&partnerID=8YFLogxK
U2 - 10.1016/j.ssi.2018.10.018
DO - 10.1016/j.ssi.2018.10.018
M3 - 文章
AN - SCOPUS:85055657875
SN - 0167-2738
VL - 327
SP - 83
EP - 92
JO - Solid State Ionics
JF - Solid State Ionics
ER -
