scholarly journals Development and Characterization of Poly(1-vinylpyrrolidone-co-vinyl acetate) Copolymer Based Polymer Electrolytes

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Nurul Nadiah Sa’adun ◽  
Ramesh Subramaniam ◽  
Ramesh Kasi
Keyword(s):  
Ionic Liquid ◽  
Ionic Conductivity ◽  
Polymer Electrolyte ◽  
Vinyl Acetate ◽  
Polymer Electrolytes ◽  
Morphological Properties ◽  
X Ray Diffraction ◽  
Casting Technique ◽  
Solution Casting Technique

Gel polymer electrolytes (GPEs) are developed using poly(1-vinylpyrrolidone-co-vinyl acetate) [P(VP-co-VAc)] as the host polymer, lithium bis(trifluoromethane) sulfonimide [LiTFSI] as the lithium salt and ionic liquid, and 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl) imide [EMImTFSI] by using solution casting technique. The effect of ionic liquid on ionic conductivity is studied and the optimum ionic conductivity at room temperature is found to be 2.14 × 10−6 S cm−1for sample containing 25 wt% of EMImTFSI. The temperature dependence of ionic conductivity from 303 K to 353 K exhibits Arrhenius plot behaviour. The thermal stability of the polymer electrolyte system is studied by using thermogravimetric analysis (TGA) while the structural and morphological properties of the polymer electrolyte is studied by using Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction analysis (XRD), respectively.

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.

scholarly journals Preparation and Characterization of Polymer Electrolyte of Glycidyl Methacrylate-Methyl Methacrylate-LiClO4Plasticized with Ethylene Carbonate

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
M. Imperiyka ◽  
A. Ahmad ◽  
S. A. Hanifah ◽  
M. Y. A. Rahman
Keyword(s):  
Polymer Electrolyte ◽  
Fourier Transforms ◽  
Ethylene Carbonate ◽  
X Ray Diffraction ◽  
Solar Cell Application ◽  
Casting Technique ◽  
Dye Sensitized ◽  
Amorphous Nature ◽  
Solution Casting Technique

In the present investigation, we study the properties of the plasticized polyglycidyl methacrylate P(GMA) copolymerized with polymethyl methacrylate P(MMA)-LiClO4polymer electrolyte prepared by solution casting technique. The electrolyte was characterized using impedance spectroscopy (EIS), Fourier transforms infrared (FTIR), cyclic voltammetry (CV), and X-ray diffraction (XRD). The conductivity was improved from1.3×10−12 S cm−1to8.7×10−6 S cm−1upon the addition of 25 wt.% LiClO4salt into P(GMA-MMA). The conductivity was improved from1.4×10−6 S cm−1to3.0×10−4 S cm−1upon the addition of 80 wt.% EC into P(GMA-MMA)-LiClO4The band that belongs to C–O–C is shifted farther than the band of C=O upon the addition of LiClO4into P(GMA-MMA). The band of C–O–C stretching is shifted to lower wavenumber upon the addition of EC into P(GMA-MMA)-LiClO4. Upon the addition of EC into P(GMA-co-MMA), the intensity of the peaks decreases, implying the amorphous nature of the electrolyte increases with the concentration of the plasticizer. The electrolyte is electrochemically stable at 3.8 V, making it suitable for dye-sensitized solar cell application.

Electrical Analysis of Cornstarch-Based Polymer Electrolyte Doped with NaCl

2017 ◽  
Vol 268 ◽  
pp. 347-351 ◽  
Author(s):  
Syakirah binti Shahrudin ◽  
Azizah Hanom Ahmad
Keyword(s):  
Ionic Conductivity ◽  
Polymer Electrolyte ◽  
Polymer Electrolytes ◽  
Room Temperature ◽  
Transport Number ◽  
Corn Starch ◽  
Solution Casting ◽  
Arrhenius Model ◽  
Casting Technique ◽  
Solution Casting Technique

Corn starch (CS) – sodium chloride (NaCl) based polymer electrolytes were prepared by solution casting technique. At room temperature, CS-NaCl film with ratio of 70 wt. % - 30 wt. % demonstrates the highest ionic conductivity in the range of (1.72 ± 0.12) x10-5 Scm-1. Temperature-dependence ionic conductivity study follows Arrhenius model and using related plot, the activation energy for highest conducting composition is 0.16eV. The transport number measurement studies confirmed that the ionic conductivity of this polymer electrolyte is due to ions. Fourier transform infrared spectroscopy (FTIR) analysis proved the interaction between CS and NaCl.

Transport and Morphological Properties of Gel Polymer Electrolytes Containing Mg(CF3SO3)2

2013 ◽  
Vol 686 ◽  
pp. 137-144 ◽  
Author(s):  
N.H. Zainol ◽  
Zurina Osman ◽  
Lisani Othman ◽  
K.B. Md. Isa
Keyword(s):  
Polymer Electrolyte ◽  
Polymer Electrolytes ◽  
Ethylene Carbonate ◽  
Gel Polymer Electrolyte ◽  
Morphological Properties ◽  
Gel Polymer Electrolytes ◽  
Casting Technique ◽  
Ionic Transport Number ◽  
Solution Casting Technique ◽  
Ion Conducting

Magnesium-ion conducting gel polymer electrolytes (GPEs) based on PMMA with ethylene carbonate (EC) and propylene carbonate (PC) as a plasticizing solvent were prepared via the solution casting technique. Mg(CF3SO3)2 salt was used as source of magnesium ions, Mg2+. The variation of conductivity with salt concentrations, from 5 wt.% to 30 wt.% was studied. The gel polymer electrolyte with composition 20 wt.% of Mg(CF3SO3)2 exhibited the highest conductivity of 1.27 x 10-3 S cm-1 at room temperature. The conductivity-temperature dependence of gel polymer electrolyte films obeys Arrhenius behaviour with activation energy in the range of 0.18 eV to 0.26 eV. Ionic transport number was evaluated using DC polarization technique and it reveals the conducting species are predominantly ions. It is found that the ionic conductivity and transport properties of the prepared GPEs are consistent with the X-Ray Diffraction (XRD) and Field Emission Scanning Electron Microscopy (FESEM) studies.

Effects of Different Concentration in (w/v)% of Carboxymethyl Iota-Carrageenan Based Green Polymer Electrolyte

2015 ◽  
Vol 1107 ◽  
pp. 205-210
Author(s):  
Fatihah Najirah Jumaah ◽  
Azizan Ahmad ◽  
Hussein Hanibah ◽  
Nadhratun Naiim Mobarak ◽  
M.A. Ghani
Keyword(s):  
Ionic Conductivity ◽  
Polymer Electrolyte ◽  
Electrochemical Impedance ◽  
Amorphous Region ◽  
Xrd Analysis ◽  
X Ray Diffraction ◽  
Volume Percentage ◽  
Casting Technique ◽  
Solution Casting Technique ◽  
Green Polymer

The effect of different concentrations in weight per volume percentage, (w/v)% of iota-carrageenan and carboxymethyl-iota carrageenan used as the green polymer electrolyte has been studied. The polymer electrolyte films were prepared by solution casting technique. Different concentration in the range from 1.0 – 6.0 (w/v)% were dissolved in fix volume of acetic acid which act as solvent. The films have been analyzed through attenuated Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD) measurement and electrochemical impedance spectroscopy (EIS). The EIS results showed that the ionic conductivity increased as the concentration of the polymer increases. In comparison between iota-carrageenan and carboxymethyl iota-carrageenan, carboxymethyl-iota carrageenan showed better results due to the presence of more active site. The highest conductivity achieved by iota-carrageenan and carboxymethyl iota-carrageenan were 3.45 × 10-6S cm-1and 9.57 × 10-4S cm-1at the concentration 3.0 and 4.0 (w/v)% , respectively. From the FTIR spectra, it depicts that the intensity of significant peaks of ether and carboxylate group increases as the concentration of polymer increases. The XRD analysis showed that as the concentration of polymer increase, the amorphous region in the films would be enhanced. This study showed that the concentration play significant role in the ionic conductivity improvement.

Properties of Gel Polymer Electrolyte Based Poly(Vinylidine Fluoride-сo-Hexafluoropropylene) (PVdF-HFP), Lithium Perchlorate (LiClO4) and 1-Butyl-3-Methylimmidazoliumhexafluorophosphate [PF6]

2021 ◽  
Vol 317 ◽  
pp. 434-439
Author(s):  
Siti Aminah Mohd Noor ◽  
Chow Peng Wong ◽  
Mariah Zuliana Dzulkipli ◽  
Mohd Sukor Su'ait ◽  
Lee Tian Khoon ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Polymer Electrolyte ◽  
Room Temperature ◽  
Morphological Analysis ◽  
Gel Polymer Electrolyte ◽  
Lithium Perchlorate ◽  
Casting Technique ◽  
Solution Casting Technique ◽  
Imidazolium Ion

This study reported the preparation and characterization of gel polymer electrolyte (GPE) using poly (vinylidine fluoride-co-hexafluoropropylene) (PVdF-HFP), lithium perchlorate (LiClO4) and 1-butyl-3-metilimmidazoliumhexafluorophosphate [PF6]. The GPE were prepared by solution casting technique. [Bmim] [PF6] ionic liquid is used as an additive for the purpose of increasing the ionic conductivity of GPE. Morphological analysis showed that the electrolyte gel polymer sample had a smooth and flat surface with the addition of [Bmim] [PF6] and no phase separation effect was observed. This shows the compatibility between PVdF-HFP and [Bmim] [PF6]. ATR-FTIR analysis showed that C-F bond related peaks experienced peak changes in terms of intensity and peak shifting. This proves the interaction of the imidazolium ion with the fluorine atom through the formation of coordinate bonds. Ionic conductivity analysis showed that PVdF-HFP-[Bmim][PF6] samples reached a maximum room temperature ionic conductivity value of 2.44 × 10-4 S cm-1 at 60 wt.% [Bmim] [PF6]. When 20 wt.% of LiClO4 added to the system, the ionic conductivity increased one magnitude order to 2.20 × 10-3 S cm-1.

Structural and Electrical Characterization of Hexanoyl Chitosan-LiClO4-TiO2-DMC Polymer Electrolytes

2013 ◽  
Vol 594-595 ◽  
pp. 608-612
Author(s):  
F.H. Muhammad ◽  
R.H.Y. Subban ◽  
Tan Winie
Keyword(s):  
Polymer Electrolytes ◽  
Electrical Characterization ◽  
Structural Aspect ◽  
X Ray Diffraction ◽  
Electrolyte System ◽  
Casting Technique ◽  
Hexanoyl Chitosan ◽  
Structural And Electrical Properties ◽  
Solution Casting Technique

Hexanoyl chitosan-based polymer electrolytes were prepared using the solution casting technique. The effect of dimethyl carbonate (DMC) plasticizer on the structural and electrical properties of the prepared electrolyte system was investigated by X-ray diffraction and impedance spectroscopy, respectively. Upon addition of 15 wt. % of DMC, the ionic conductivity was increased to 4.09 x 10-4 S cm-1 from 3.06 x 10-4 S cm-1. The XRD results revealed the variation in conductivity from the structural aspect. For example, sample with lower crystallinity exhibits higher conductivity. The Rice and Roth model was employed to understand the variation in conductivity on the basis of number and mobility of free ions.

scholarly journals Increasing the ionic conductivity of solid state polymer electrolyte using fly ash as a filler

2018 ◽  
Vol 14 (4) ◽  
pp. 443-447
Author(s):  
Yatim Lailun Ni'mah ◽  
Muhammad Fajar Taufik ◽  
Atetegap Maezah ◽  
Fredy Kurniawan
Keyword(s):  
Fly Ash ◽  
Ionic Conductivity ◽  
Polymer Electrolyte ◽  
Solid Polymer Electrolyte ◽  
Impedance Analysis ◽  
Solid Polymer ◽  
X Ray Diffraction ◽  
Casting Technique ◽  
Varied Temperature ◽  
Solution Casting Technique

Polymer electrolytes film based on polyethylene oxide (PEO) complexes with NaClO4 salt with a ratio of EO: Na = 20:1 and fly ash as filler has been prepared by solution casting technique. The crystallinity of the solid polymer electrolyte was characterized by X-Ray Diffraction (XRD). The interaction between PEO and Na-ions confirmed by Fourier Transform Infra Red (FTIR) analysis. The ionic conductivity of the solid polymer electrolyte was investigated by impedance analysis from 1 MHz to 1 Hz at a varied temperature of 50°C, 60°C, 70°C, 80°C, and 90°C. The maximum ionic conductivity of EO: Na = 20 was 5.31 x 10-5 S cm-1 and increases to 2.13 x 10-4 S cm-1 by the addition of fly ash 5% at the temperature of 60°C.

Ionic Conductivity, Morphology and Transport Number of Lithium Ions in PMMA Based Gel Polymer Electrolytes

2013 ◽  
Vol 334-335 ◽  
pp. 137-142 ◽  
Author(s):  
Lisani Othman ◽  
Khairul Bahiyah Md. Isa ◽  
Zurina Osman ◽  
Rosiyah Yahya
Keyword(s):  
Ionic Conductivity ◽  
Salt Concentration ◽  
Polymer Electrolytes ◽  
Ethylene Carbonate ◽  
Transference Number ◽  
Gel Polymer Electrolytes ◽  
Casting Technique ◽  
Ionic Transference Number ◽  
Temperature Dependence Of Conductivity ◽  
Solution Casting Technique

The gel polymer electrolytes (GPEs) composed of polymethylmethacrylate (PMMA) with lithium trifluoromethanesulfonate (LiCF3SO3) salt dissolved in a binary mixture of ethylene carbonate (EC) and propylene carbonate (PC) organic solvents have been prepared by the solution casting technique. The samples are prepared by varying the salt concentrations from 5 wt.% to 30 wt.%. Impedance spectroscopy measurement has been carried out to determine the ionic conductivity of the samples. The sample containing 25 wt.% of LiCF3SO3salt exhibits the highest room temperature ionic conductivity of 2.56 x 10-3S cm-1. The conductivity of the GPEs has been found to depend on the salt concentration added to the sample, while at higher salt concentration reveals a decrease in the ionic conductivity due to ions association. The temperature dependence of conductivity from 303 K to 373 K is found to obey the Arrhenius law. The ionic transference number,tiof GPEs has been estimated by the DC polarization method and the value is found to be 0.98, 0.93, and 0.97 for the sample containing 25 wt.%, 5 wt.% and 30 wt.% respectively. This result is consistent with the conductivity studies.

Effect of Propylene Carbonate on Ionic Conductivity of MG49-TiO2-LiClO4 Composites Polymer Electrolytes

2012 ◽  
Vol 501 ◽  
pp. 44-48 ◽  
Author(s):  
Azizan Ahmad ◽  
Shwu Ping Low ◽  
Fadwa Saad Addaokali Almakhzoom ◽  
Mohd Yusri Abdul Rahman
Keyword(s):  
Ionic Conductivity ◽  
Propylene Carbonate ◽  
Polymer Electrolytes ◽  
Electrochemical Impedance ◽  
Chemical Interaction ◽  
Optimum Level ◽  
Lithium Ions ◽  
Xrd Pattern ◽  
Casting Technique ◽  
Solution Casting Technique

The effect of plasticizer (PC) on the conductivity and chemical interaction of polymer electrolyte of MG49–PC–LiClO4–TiO2 has been investigated. The electrolyte films were successfully prepared by solution casting technique. Alternating current electrochemical impedance spectroscopy was employed to investigate the ionic conductivity of the electrolyte films at 25 °C, and the analysis showed that the addition of propylene carbonate (PC) plasticizer has increased the ionic conductivity of the electrolyte up to its optimum level. The highest conductivity of 2.54×10−4 Scm−1 was obtained at 30 wt.% of PC. Fourier transform infrared spectroscopy measurement was employed to study the interactions between lithium ions and oxygen atoms that occurred at carbonyl (C=O) and ether (C-O-C) groups. XRD pattern showed that the crystallinity phase was reduced at the highest conductivity.

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