Scaling of AC conductivity, electrochemical and thermal properties of ionic liquid based polymer nanocomposite electrolytes

Nath, A. K.; Kumar, Ashok

doi:10.1016/j.electacta.2014.02.101

Cited by 51 publications

(18 citation statements)

References 42 publications

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“…Some polymer gel electrolytes were obtained by incorporating ionic liquids (ILs) with the aim of improving the properties of the GPEs. Similar to plasticiser, an ionic liquid can induce the formation amorphous phase by the voluminous cations to create "free-volume" which is favourable for ion diffusion [22]. The use of GPEs can also improve the contact at the interface of the electrode and avoid leakage problems that are common with liquid electrolytes [23] while maintaining high conductivities.…”

Section: Introductionmentioning

confidence: 98%

Ionic liquid-based polymer gel electrolytes for symmetrical solid-state electrical double layer capacitor operated at different operating voltages

Syahidah

Majid

2015

Electrochimica Acta

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Section: Introductionmentioning

confidence: 98%

Ionic liquid-based polymer gel electrolytes for symmetrical solid-state electrical double layer capacitor operated at different operating voltages

Syahidah

Majid

2015

Electrochimica Acta

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“…A wide range of ionic liquids have been doped in numerous polymers for polymer electrolyte and sensor applications. Some specific polymers that have been doped with ionic liquids for various applications include: sulfonated poly(ether ketone), polyurethane, poly(propylene carbonate), poly(vinyl acetate), poly(vinyl chloride), cellulose triacetate, poly(styrene‐ b ‐methyl methacrylate), poly(styrene‐ b ‐methyl methacrylate), poly(styrene‐ b ‐methylbutylene), poly(styrene‐ b −2‐vinylpyridine), polybutadiene, poly(vinylidene fluoride), poly(vinylidene fluoride‐ co ‐hexafluoropropylene), polytetrafluoroethylene, polyethylene, poly(methyl methacrylate), poly(vinyl pyridine), poly(ethyleneimine), poly(diallyldimethylammonium chloride), poly(allylamine hydrochloride), poly( n ‐isopropylacrylamide), polysulfides, polysulfone, and polyimides . A large portion of the work involving ionic liquids in PEMs has involved the use of ionic liquids as anhydrous ion vehicles .…”

Section: Introductionmentioning

confidence: 99%

Influences of liquid electrolyte and polyimide identity on the structure and conductivity of polyimide–poly(ethylene glycol) materials

Coletta

Toney

Frank

2014

J of Applied Polymer Sci

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Current fuel cell technology demands improvements for widespread use, and novel polymer materials may be able to achieve the necessary enhancements. This work inspects the composition, structure, and properties of poly(ethylene glycol) (PEG)-aromatic polyimide systems aimed at polymer electrolyte membrane applications, as PEG is a known ion conductor and aromatic polyimides are quite stable. Liquid electrolytes were incorporated into the polymers through soaking to achieve ionic conductivity. By varying polyimide and liquid electrolyte, the polymers were analyzed for their structure and conductivity. Fourier transform infrared spectroscopy, thermal gravimetric analysis, differential scanning calorimetry, small-angle X-ray scattering, electrochemical impedance spectroscopy, and cyclic voltammetry were used as characterization tools. Electrolyte identity impacts liquid uptake and conductivity. Polyimide identity can influence the size and variability of the doped polymer structure, which ultimately can change conductivity by up to 28%, with the maximum conductivity being 102 mS/cm at 80 C and 70% RH.

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“…Frequency dependent conductivity formalism has been used to elucidate ion dynamics processes of various polymer-salt complexes. 47,48 The conductivity spectra obtained for (PEO+10wt.% LiPF 6 )+x wt.% BMIMPF 6 for x=0, 10 and 20 at various temperatures are shown in Fig. 10 (see curves A, B, C respectively).…”

Section: Frequency Dependent Ionic Conductivity Studymentioning

confidence: 99%

Studies on structural, thermal and AC conductivity scaling of PEO-LiPF6 polymer electrolyte with added ionic liquid [BMIMPF6]

et al. 2015

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Preparation and characterization of polymer electrolyte films of PEO+10wt.% LiPF 6 +xwt.% BMIMPF 6 (1-butyl-3-methylimidazolium hexafluorophosphate) containing dopant salt lithium hexafluorophosphate (LiPF 6 ) and ionic liquid (BMIMPF 6 ) having common anion PF -6 are reported. The ionic conductivity of the polymer electrolyte films has been found to increase with increasing concentration of BMIMPF 6 in PEO+10 wt.% LiPF 6 due to the plasticization effect of ionic liquid. DSC and XRD results show that the crystallinity of polymer electrolyte decreases with BMIMPF 6 concentration which, in turn, is responsible for the increase in ionic conductivity. FTIR spectroscopic study shows the complexation of salt and/or ionic liquid cations with the polymer backbone.

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Scaling of AC conductivity, electrochemical and thermal properties of ionic liquid based polymer nanocomposite electrolytes

Cited by 51 publications

References 42 publications

Ionic liquid-based polymer gel electrolytes for symmetrical solid-state electrical double layer capacitor operated at different operating voltages

Ionic liquid-based polymer gel electrolytes for symmetrical solid-state electrical double layer capacitor operated at different operating voltages

Influences of liquid electrolyte and polyimide identity on the structure and conductivity of polyimide–poly(ethylene glycol) materials

Studies on structural, thermal and AC conductivity scaling of PEO-LiPF6 polymer electrolyte with added ionic liquid [BMIMPF6]

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