Ion-pairing effects and ion–solvent–polymer interactions in LiN(CF3SO2)2–PC–PMMA electrolytes: a FTIR study

Deepa, Melepurath; Agnihotry, S.A.; Gupta, D. K.; Chandra, Ramesh

doi:10.1016/j.electacta.2003.08.020

Cited by 102 publications

(80 citation statements)

References 36 publications

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“…The most used plasticizers are low molecular weight organic solvents such as propylene carbonate (PC), ethylene carbonate (EC), ~/-butyrolactone (yBL), N,N-dimethylformamide (DMF) etc. [2,4].…”

Section: Introductionmentioning

confidence: 98%

Structural and electrochemical characteristics of 49% PMMA grafted polyisoprene-LiCF3SO3-PC based polymer electrolytes

Alias

Ling

Kumutha

2005

Ionics

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Abstract. Gel polymer electrolytes consisting of 49% PMMA grafted polyisoprene-LiCF3SO3, were plasticized with propylene carbonate (PC) are reported. The effect of PC on the electrochemical properties of the polymer electrolyte has been investigated. Analysis of FTIR spectra shows the interaction of salt and plasticizers with the polymer chain. The ionic conductivity was measured and exhibited a maximum value of 104 S/cm. The temperature dependence of the electrical conductivity follows the Arrhenius law.

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Section: Introductionmentioning

confidence: 98%

Structural and electrochemical characteristics of 49% PMMA grafted polyisoprene-LiCF3SO3-PC based polymer electrolytes

Alias

Ling

Kumutha

2005

Ionics

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“…FTIR spectroscopy studies confirmed the polymer-salt interactions. FTIR spectroscopic investigations coupled with ionic conductivity and viscosity measurements on lithium imide LiN(CF 3 SO 2 ) 2 -propylene carbonate (PC)-poly(methyl methacrylate) (PMMA) based liquid and gel electrolytes over a wide range of salt (0.025-3 M) and polymer (5-25 wt.%) concentration were reported by Deepa et al [Deepa et al, 2004] and found that the high ionic conductivity occurs at salt concentrations ≥1.25 M.…”

Section: Pmma Based Electrolytesmentioning

confidence: 99%

Surface Analysis Studies on Polymer Electrolyte Membranes Using Scanning Electron Microscope and Atomic Force Microscope

Ulaganathan¹,

Nithya²,

Rajendran³

2012

Scanning Electron Microscopy

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“…In this contest the study of ion-ion and ion-polymer interactions is of great interest. [17][18][19] mechanism in polymer electrolytes arises from the migration of ions coupled with segmental motion of polymer chains. 5 As the segmental motion of polymer chains plays a fundamental role on the transport mechanism, 5 it is necessary to study ion transport mechanism along with polymer segmental relaxation process in polymer electrolytes.…”

Section: Introductionmentioning

confidence: 99%

Ionic conductivity and dielectric permittivity of PEO-LiClO4 solid polymer electrolyte plasticized with propylene carbonate

Das

Ghosh

2015

AIP Advances

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We have studied ionic conductivity and dielectric permittivity of PEO-LiClO4 solid polymer electrolyte plasticized with propylene carbonate. Differential scanning calorimetry and X-ray diffraction studies confirm minimum volume fraction of crystalline phase for the polymer electrolyte with 40 wt. % propylene carbonate. The ionic conductivity exhibits a maximum for the same composition. The temperature dependence of the ionic conductivity has been well interpreted using Vogel-Tamman-Fulcher equation. Ion-ion interactions in the polymer electrolytes have been studied using Raman spectra and the concentrations of free ions, ion-pairs and ion-aggregates have been determined. The ionic conductivity increases due to the increase of free ions with the increase of propylene carbonate content. But for higher content of propylene carbonate, the ionic conductivity decreases due to the increase of concentrations of ion-pairs and ion-aggregates. To get further insights into the ion dynamics, the experimental data for the complex dielectric permittivity have been studied using Havriliak–Negami function. The variation of relaxation time with temperature obtained from this formalism follows Vogel-Tamman-Fulcher equation similar to the ionic conductivity.

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Ion-pairing effects and ion–solvent–polymer interactions in LiN(CF3SO2)2–PC–PMMA electrolytes: a FTIR study

Cited by 102 publications

References 36 publications

Structural and electrochemical characteristics of 49% PMMA grafted polyisoprene-LiCF3SO3-PC based polymer electrolytes

Structural and electrochemical characteristics of 49% PMMA grafted polyisoprene-LiCF3SO3-PC based polymer electrolytes

Surface Analysis Studies on Polymer Electrolyte Membranes Using Scanning Electron Microscope and Atomic Force Microscope

Ionic conductivity and dielectric permittivity of PEO-LiClO4 solid polymer electrolyte plasticized with propylene carbonate

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