scholarly journals Effect of Zirconium Oxide Nanofiller and Dibutyl Phthalate Plasticizer on Ionic Conductivity and Optical Properties of Solid Polymer Electrolyte

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Siti Mariah Mohd Yasin ◽  
Suriani Ibrahim ◽  
Mohd Rafie Johan
Keyword(s):  
Zirconium Oxide ◽  
Dibutyl Phthalate ◽  
Solid Polymer Electrolytes ◽  
Localized States ◽  
Solid Polymer ◽  
Casting Technique ◽  
Phthalate Plasticizer ◽  
Maximum Conductivity ◽  
Solution Casting Technique ◽  
Poly Ethylene

New solid polymer electrolytes (SPE) based on poly(ethylene oxide) (PEO) doped with lithium trifluoromethanesulfonate (LiCF3SO3), dibutyl phthalate (DBP) plasticizer, and zirconium oxide (ZrO2) nanoparticles were prepared by solution-casting technique. The conductivity was enhanced by addition of dibutyl phthalate (DBP) plasticizer and ZrO2nanofiller with maximum conductivity(1.38×10-4 Scm-1). The absorption edge and band gap values showed decreases upon addition of LiSO3CF3, DBP, and ZrO2due to the formation of localized states in the SPE and the degree of disorder in the films increased.

Dielectric Relaxation Study on TiO2 Based Nanocomposite Blend Polymer Electrolytes

2014 ◽  
Vol 807 ◽  
pp. 135-142
Author(s):  
C. Ambika ◽  
G. Hirankumar
Keyword(s):  
Polymer Electrolytes ◽  
Methanesulfonic Acid ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Solution Casting ◽  
Casting Technique ◽  
Relaxation Study ◽  
Maximum Conductivity ◽  
Solution Casting Technique ◽  
Blend Polymer

Nanocomposite solid polymer electrolytes comprise of PMMA (poly methyl methacrylate), PVP (poly vinyl pyrolidone), MSA (methanesulfonic acid) and TiO2 as nanofiller were prepared by solution casting technique at different compositions. Sample with 1 mol% incorporated TiO2 has shown maximum conductivity and its value was found as 2.82 ×10-5 S/cm. The value of conductivity has been enhanced to about 31% upon the addition of nanofiller. The relaxation time for all the prepared composites as well as for the composite having maximum conductivity at various isotherms have been calculated from the loss tangent plot. The frequency and temperature dependence of dielectric constant and dielectric loss nanocomposite solid polymer electrolytes have also been studied. The modulus analysis confirms the non-Debye type formalism in the prepared composites.

scholarly journals Vibrational, electrical, dielectric and optical properties of PVA-LiPF6 solid polymer electrolytes

2019 ◽  
Vol 37 (3) ◽  
pp. 331-337 ◽  
Author(s):  
S. Abarna ◽  
G. Hirankumar
Keyword(s):  
Polymer Electrolytes ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Conductivity Enhancement ◽  
Casting Technique ◽  
Vis Spectroscopy ◽  
Maximum Conductivity ◽  
Solution Casting Technique ◽  
Ft Ir ◽  
Dielectric And Optical Properties

AbstractSolid polymer electrolytes based on polyvinyl alcohol (PVA) doped with LiPF6 have been prepared using solution casting technique. Electrical properties of prepared electrolyte films were analyzed using AC impedance spectroscopy. The ionic conductivity was found to increase with increasing salt concentration. The maximum conductivity of 8.94 × 10−3 S·cm−1 was obtained at ambient temperature for the film containing 20 mol% of LiPF6. The conductivity enhancement was correlated to the enhancement of available charge carriers. The formation of a complex between the polymer and salt was confirmed by Fourier transform infrared spectroscopy (FT-IR). The optical nature of the polymer electrolyte films was analyzed through UV-Vis spectroscopy.

Characterization of Plasticized PMMA-LiClO4 Solid Polymer Electrolytes

2012 ◽  
Vol 585 ◽  
pp. 185-189 ◽  
Author(s):  
Rajni Sharma ◽  
Anjan Sil ◽  
Subrata Ray
Keyword(s):  
Ionic Conductivity ◽  
Polymer Electrolytes ◽  
Thermal Analyses ◽  
Impedance Analysis ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Casting Technique ◽  
Ac Impedance Analysis ◽  
Solution Casting Technique

In the present work, the effect of Li salt i.e. LiClO4 contained in composite plasticizer (PC+DEC) with three different concentrations on ionic transport and other electrochemical properties of PMMA based gel polymer electrolytes synthesized has been investigated. The electrolytes have been synthesized by solution casting technique by varying the wt (%) of salt and plasticizer. The formation of polymer-salt complexes and their structural characterization have been carried out by FTIR spectroscopic and XRD analyses. The room temperature ionic conductivity of the electrolyte composition 0.6PMMA-0.125(PC+DEC)-0.15LiClO4 (wt %) has been found to be maximum whose magnitude is 0.40×10-5 S/cm as determined by ac impedance analysis. The temperature dependent ionic conductivity of electrolyte sample0.6PMMA-0.125(PC+DEC)-0.15LiClO4 has further been investigated. Thermal analyses of electrolyte samples of all three compositions have also been done.

Role of Salt Concentration Lithium Perchlorate on Ionic Conductivity and Structural of (Glycidyl Methacrylate-co-Ethyl Methacrylate) (70/30) Based on a Solid Polymer Electrolyte

2012 ◽  
Vol 626 ◽  
pp. 454-458 ◽  
Author(s):  
M. Imperiyka ◽  
Azizan Ahmad ◽  
S.A. Hanifah ◽  
Mohd Yusri Abdul Rahman
Keyword(s):  
Glycidyl Methacrylate ◽  
Fourier Transforms ◽  
Electrochemical Impedance ◽  
Epoxy Group ◽  
Lithium Perchlorate ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Casting Technique ◽  
Ethyl Methacrylate ◽  
Solution Casting Technique

A new solid polymer electrolytes (SPE) comprising copolymer of poly(glycidyl methacrylate, GMA) and (ethyl methacrylate, EMA) as polymer host and LiClO4as dopant was prepared by solution-casting technique. The copolymer was prepared by photopolymerization method and was characterized using NMR. The SPEs were characterized using electrochemical impedance spectroscopy (EIS), fourier transforms infrared (FTIR) and X-ray diffraction (XRD). The highest conductivity achieved was 4.0x10-4at 373K with highest conductivity at room temperature (2.7x10ˉ5 S cm-1at 30 wt. % of LiClO4). The active coordination site for the cation (Li+), three electrons donating functional carbonyl, ether and epoxy group of the GMA-co-EMA host have been evaluated base on their properties that were recorded in (FTIR). The structural analysis showed reduction in copolymer crystallinity phases at its highest conductivity

The Investigation on Ionic Conduction of PEMA Based Solid Polymer Electrolytes

2010 ◽  
Vol 93-94 ◽  
pp. 381-384
Author(s):  
Shahrul Amir ◽  
Mohamed Nor Sabirin ◽  
Ri Hanum Yahaya Subban
Keyword(s):  
Polymer Electrolytes ◽  
Ionic Conduction ◽  
Lithium Perchlorate ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
X Ray Diffraction ◽  
Conducting Film ◽  
X Ray ◽  
Casting Technique ◽  
Solution Casting Technique

Solid polymer electrolytes comprising of various weight ratios of poly(ethyl methacrylate) (PEMA) and lithium perchlorate (LiClO4) salt were prepared via solution casting technique using N,N-Dimethylformamide (DMF) as the solvent. The conductivity values of the electrolytes were determined utilizing Solatron 1260. The highest conductivity obtained is in the order of 10-6 S cm-1. Structural properties of the electrolytes were investigated by X-ray diffraction and the results show that the highest conducting film is the most amorphous.

scholarly journals Preparation and Characterization of Ammonium Ceric Nitrate Doped PVDF Polymer Electrolytes

2019 ◽  
Vol 8 (4S2) ◽  
pp. 903-906
Keyword(s):  
Polymer Electrolytes ◽  
Vinylidene Fluoride ◽  
Impedance Analysis ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Casting Technique ◽  
Ac Impedance Analysis ◽  
Poly Vinylidene Fluoride ◽  
Solution Casting Technique ◽  
Ammonium Ceric Nitrate

Poly [vinylidene fluoride] (PVdF): Ammonium ceric nitrate ((NH4)2Ce(NO3)6) based Proton conducting solid polymer electrolytes (SPEs) are prepared by solution casting technique. Polymer electrolytes are characterized by several techniques. The Structural property of the electrolytes are confirmed by XRD. The functional groups present in polymer electrolytes are confirmed by FTIR. The conductivity of the polymer electrolytes are calculated by using AC impedance analysis. The Maximum ionic conductivity is obtained for 2wt% of ammonium ceric nitrate doped polymer electrolyte.

Miscibility and Conductivities of PEO/PMMA-LiClO4 Solid Polymer Electrolyte

2013 ◽  
Vol 812 ◽  
pp. 267-270 ◽  
Author(s):  
Siti Rozana Abd Karim ◽  
Lai Har Sim ◽  
Chin Han Chan ◽  
Nurul Fatahah Asyqin Zainal ◽  
Masitah Abu Kassim
Keyword(s):  
Solid Polymer ◽  
Salt System ◽  
Segmental Motion ◽  
Casting Technique ◽  
Percolation Path ◽  
Salt Complex ◽  
Solution Casting Technique ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene ◽  
Pmma Blends

Thin films of poly (ethylene oxide) (PEO), poly (methyl methacrylate) (PMMA) and selected blends of PEO/PMMA with and without the addition of LiClO4 were prepared using solution casting technique. The presence of a single Tg which corresponds closely to that of the Gordon Taylor equation confirms the miscibility of both the salt-free and salt-doped blends. The Tgs and the ion conductivity (σ) at room temperature of PEO, PMMA and the PEO/PMMA blends generally increase with ascending salt concentration (Y). Variations in the σ value as a function of Y for all the three systems correlate closely with their respective Tg results. PMMA-salt complex records the lowest σ value at all salt concentrations. PEO/PMMA/LiClO4 blend with 75 wt% PEO exhibits the highest σ value of 5 x 10-7 S cm-1 at Y = 0.10. The σ value of the blend-salt system is observed to be slightly lower than that of the PEO-salt system. This is due to reduced segmental motion cause by increased Tg of the blend and a decrease in free ions in the amorphous phase of PEO as a small amount of the salt is solvated by PMMA in the blend. Therefore, the percolation path lies in the amorphous PEO rich phase of the blend.

Solid Polymer Electrolytes from Crosslinked PEG and Dilithium N,N'-Bis(trifluoromethanesulfonyl)perfluoroalkane-1,ω-disulfonamide and Lithium Bis(trifluoromethanesulfonyl)imide Salts

2008 ◽  
Vol 73 (12) ◽  
pp. 1777-1798 ◽  
Author(s):  
Olt E. Geiculescu ◽  
Rama V. Rajagopal ◽  
Emilia C. Mladin ◽  
Stephen E. Creager ◽  
Darryl D. Desmarteau
Keyword(s):  
Ionic Conductivity ◽  
Polymer Electrolytes ◽  
Minimum Energy ◽  
Ionic Conductivities ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Segmental Motion ◽  
Concentrated Electrolytes ◽  
Two Factors ◽  
Poly Ethylene

The present work consists of a series of studies with regard to the structure and charge transport in solid polymer electrolytes (SPE) prepared using various new bis(trifluoromethanesulfonyl)imide (TFSI)-based dianionic dilithium salts in crosslinked low-molecular-weight poly(ethylene glycol). Some of the thermal properties (glass transition temperature, differential molar heat capacity) and ionic conductivities were determined for both diluted (EO/Li = 30:1) and concentrated (EO/Li = 10:1) SPEs. Trends in ionic conductivity of the new SPEs with respect to anion structure revealed that while for the dilute electrolytes ionic conductivity is generally rising with increased length of the perfluoroalkylene linking group in the dianions, for the concentrated electrolytes the trend is reversed with respect to dianion length. This behavior could be the result of a combination of two factors: on one hand a decrease in dianion basicity that results in diminished ion pairing and an enhancement in the number of charge carriers with increasing fluorine anion content, thereby increasing ionic conductivity while on the other hand the increasing anion size and concentration produce an increase in the friction/entanglements of the polymeric segments which lowers even more the reduced segmental motion of the crosslinked polymer and decrease the dianion contribution to the overall ionic conductivity. DFT modeling of the same TFSI-based dianionic dilithium salts reveals that the reason for the trend observed is due to the variation in ion dissociation enthalpy, derived from minimum-energy structures, with respect to perfluoroalkylene chain length.

Solid polymer electrolytes based on statistical poly (ethylene oxide-propylene oxide) copolymers

1995 ◽  
Vol 40 (13-14) ◽  
pp. 2295-2299 ◽  
Author(s):  
X. Andrieu ◽  
J.F. Fauvarque ◽  
A. Goux ◽  
T. Hamaide ◽  
R. M'hamdi ◽  
...  
Keyword(s):  
Ethylene Oxide ◽  
Propylene Oxide ◽  
Polymer Electrolytes ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene
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