PVDF-HFP and 1-ethyl-3-methylimidazolium thiocyanate–doped polymer electrolyte for efficient supercapacitors

2018 ◽  
Vol 30 (8) ◽  
pp. 911-917 ◽  
Author(s):  
Pankaj Tuhania ◽  
Pramod K Singh ◽  
B Bhattacharya ◽  
Pawan S Dhapola ◽  
Shivani Yadav ◽  
...  
Keyword(s):  
Polymer Electrolyte ◽  
Solid Polymer Electrolyte ◽  
Vinylidene Fluoride ◽  
Electrochemical Impedance ◽  
Solid Polymer ◽  
Low Viscosity ◽  
Poly Vinylidene Fluoride ◽  
Maximum Conductivity ◽  
Solution Cast ◽  
Electrochemical Double Layer

The sole aim of the present article is to develop an ionic liquid (IL)-doped solid polymer electrolyte for an electrochemical double-layer capacitor (EDLC). A solution cast technique was adopted to develop a solid polymer electrolyte of poly (vinylidene fluoride-co-hexafluoropropylene) as host polymer and low-viscosity IL (1-ethyl-3-methylimidazolium thiocyanate) as dopant. Electrochemical impedance spectroscopy measurement showed a six orders of magnitude enhancement in conductivity ( σ) by IL doping. A linear sweep voltammetric investigation of the electrolyte films exhibited a good electrochemical stability window of 3.6 V. Polarized optical microscopy of the synthesized films revealed a reduction in crystallinity by IL doping. Infrared spectroscopy further affirms the composite nature of the film. The maximum conductivity value of 2.65 mS/cm is obtained for 80% of the ionic-doped system. Using maximum conductivity film and porous carbon-based electrodes, we have developed EDLCs that show a specific capacitance value of 2.36 F/g.

Poly(vinylidene fluoride)-Based Al Ion Conductive Solid Polymer Electrolyte for Al Battery

2017 ◽  
Vol 164 (14) ◽  
pp. A3868-A3875 ◽  
Author(s):  
Masashi Kotobuki ◽  
Li Lu ◽  
Seruguei V. Savilov ◽  
Serguei M. Aldoshin
Keyword(s):  
Polymer Electrolyte ◽  
Solid Polymer Electrolyte ◽  
Vinylidene Fluoride ◽  
Solid Polymer ◽  
Poly Vinylidene Fluoride

Actuation Behavior of CP Actuator Based on Polypyrrole and PVDF

2007 ◽  
Vol 29-30 ◽  
pp. 363-366 ◽  
Author(s):  
J.M. Ha ◽  
Hyun Ok Lim ◽  
Nam Ju Jo
Keyword(s):  
Polymer Electrolyte ◽  
Conducting Polymer ◽  
Solid Polymer Electrolyte ◽  
Vinylidene Fluoride ◽  
Oxidation Process ◽  
Electrochemical Polymerization ◽  
Solid Polymer ◽  
Poly Vinylidene Fluoride

Conducting polymer (CP) actuators undergo volumetric changes due to the movement of dopant ions into the film during the electrical oxidation process. In this work, PPy/SPE/PPy electroactive tri-layer actuator was prepared by the electrochemical polymerization of pyrrole and the actuation characteristics were studied. An all-solid actuator, consisting of two polypyrrole (PPy) films and a solid polymer electrolyte (SPE) based on poly(vinylidene fluoride) (PVDF), clearly showed a reversible displacement in an atmosphere when a voltage was applied.

The Effect of LiCF3SO3 Complexed MG30-PEMA Blend Solid Polymer Electrolyte

2015 ◽  
Vol 1107 ◽  
pp. 158-162
Author(s):  
Siti Fadzilah Ayub ◽  
R. Zakaria ◽  
K. Nazir ◽  
A.F. Aziz ◽  
Muhd Zu Azhan Yahya ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Polymer Electrolyte ◽  
Polymer Blend ◽  
Solid Polymer Electrolyte ◽  
Electrochemical Impedance ◽  
Solid Polymer ◽  
Casting Technique ◽  
Concentration Maximum ◽  
Conductivity Increase ◽  
Maximum Conductivity

In this work, solid polymer electrolyte compose of blended 30% poly (methyl methacrylate) grafted natural rubber (MG30)-poly (ethyl methacrylate) (PEMA) polymer blend doped with Lithium trimethasulfonate (LiCF3SO3) films were prepared by solution casting technique. . FTIR analysis showed that the interactions between lithium ions and oxygen atoms occur at the carbonyl functional group C=O where there is shifting in wavenumber from 1728 cm-1 of pure blend to lower wavenumber of blended MG30-PEMA on the MMA structure in both MG30 and PEMA. DSC analysis showed miscibility of polymer blend. From Electrochemical Impedance Spectrocopy analysis, ionic conductivity increase with the increasing of salt concentration. Maximum conductivity at room temperature is 9.20 x 10-6 Scm-1 was obtained when 30 wt% of LiCF3SO3 was added into the system. Ionic conductivity temperature dependence plots found obeys the Arrhenius rule.

scholarly journals An Electrochemical Amperometric Ethylene Sensor with Solid Polymer Electrolyte Based on Ionic Liquid

Sensors ◽  
2021 ◽  
Vol 21 (3) ◽  
pp. 711
Author(s):  
Petr Kuberský ◽  
Jiří Navrátil ◽  
Tomáš Syrový ◽  
Petr Sedlák ◽  
Stanislav Nešpůrek ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Polymer Electrolyte ◽  
Solid Polymer Electrolyte ◽  
Vinylidene Fluoride ◽  
Solid Polymer ◽  
Response Recovery ◽  
Poly Vinylidene Fluoride ◽  
Jet Printing ◽  
Aerosol Jet Printing ◽  
Printing Techniques

An electrochemical amperometric ethylene sensor with solid polymer electrolyte (SPE) and semi-planar three electrode topology involving a working, pseudoreference, and counter electrode is presented. The polymer electrolyte is based on the ionic liquid 1-butyl 3-methylimidazolium bis(trifluoromethylsulfonyl)imide [BMIM][NTf2] immobilized in a poly(vinylidene fluoride) matrix. An innovative aerosol-jet printing technique was used to deposit the gold working electrode (WE) on the solid polymer electrolyte layer to make a unique electrochemical active SPE/WE interface. The analyte, gaseous ethylene, was detected by oxidation at 800 mV vs. the platinum pseudoreference electrode. The sensor parameters such as sensitivity, response/recovery time, repeatability, hysteresis, and limits of detection and quantification were determined and their relation to the morphology and microstructure of the SPE/WE interface examined. The use of additive printing techniques for sensor preparation demonstrates the potential of polymer electrolytes with respect to the mass production of printed electrochemical gas sensors.

Electrical, thermal, and dielectric studies of ionic liquid-based polymer electrolyte for photoelectrochemical device

2018 ◽  
Vol 30 (8) ◽  
pp. 1002-1008 ◽  
Author(s):  
Pawan S Dhapola ◽  
Pramod K Singh ◽  
B Bhattacharya ◽  
Karan Surana ◽  
RM Mehra ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Polymer Electrolyte ◽  
Solid Polymer Electrolyte ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Open Circuit ◽  
Solid Polymer ◽  
Low Viscosity ◽  
Solution Cast

In this work, solution cast method was adapted for the preparation of 1-ethyl-3-methylimidazolium dicyanamide (EMImDCN)-doped solid polymer electrolyte. Optimum composition of polymer electrolyte (polyethylene oxide + sodium iodide) was treated as the host polymer. The ionic conductivity was further enhanced by adding low-viscosity ionic liquid (IL) EMImDCN. Electrical, thermal, dielectric, and photoelectrochemical properties of polymer host and IL-doped solid polymer electrolyte (ILDPE) are presented in detail. An electrochemical device, that is, dye-sensitized solar cell was fabricated using maximum conducting ILDPE film, which shows short-circuit current density of 0.118 mA/cm2, open-circuit voltage of 0.71 V, and overall efficiency of 0.061% at 1 sun condition.

Electrochemical double-layer supercapacitor using poly(methyl methacrylate) solid polymer electrolyte

2020 ◽  
Vol 32 (2) ◽  
pp. 201-207 ◽  
Author(s):  
Ibrahim Zakariya’u ◽  
Burak Gultekin ◽  
Vijay Singh ◽  
Pramod K Singh
Keyword(s):  
Methyl Methacrylate ◽  
Polymer Electrolyte ◽  
Double Layer ◽  
Solid Polymer Electrolyte ◽  
Electrochemical Impedance ◽  
Solid Polymer ◽  
Scanning Calorimetry ◽  
Poly Methyl Methacrylate ◽  
Conductivity Enhancement ◽  
Electrochemical Double Layer

The prime objective of the present article is to develop an efficient supercapacitor based on polymer electrolyte doped with salt. Solution cast technique was adopted to develop a solid polymer electrolyte of polymer poly(methyl methacrylate) (PMMA) as host polymer and salt potassium hydroxide (KOH) as a dopant. Incorporation of salt increases the amorphicity and assisted in conductivity enhancement. Moreover, doping of salt increases the overall conductivity of polymer electrolyte film. Electrochemical impedance spectroscopy reveals the enhancement in conductivity (four orders of magnitude) by salt doping. Fourier transform infrared shows the complexation and composite nature of films. Polarized optical microscopy shows the reduction in crystallinity, which is further confirmed by Differential scanning calorimetry. Fabricated electrochemical double-layer supercapacitor using maximum conducting polymer—salt electrolyte and symmetric carbon nanotubes electrodes shows specific capacitance of 21.86 F g−1.

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