Effect of Ionic Liquid Anion Type in the Performance of Solid Polymer Electrolytes Based on Poly(Vinylidene fluoride‐trifluoroethylene)

2014 ◽  
Vol 27 (2) ◽  
pp. 457-464 ◽  
Author(s):  
R. Leones ◽  
C. M. Costa ◽  
A. V. Machado ◽  
J. M. S. S. Esperança ◽  
M. M. Silva ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Polymer Electrolytes ◽  
Vinylidene Fluoride ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Poly Vinylidene Fluoride ◽  
Anion Type

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.

Structural and ion transport properties of lithium triflate/poly(vinylidene fluoride-co-hexafluoropropylene)-based polymer electrolytes

2016 ◽  
Vol 49 (6) ◽  
pp. 513-526 ◽  
Author(s):  
Asheesh Kumar ◽  
Raghunandan Sharma ◽  
M Suresh ◽  
Malay K Das ◽  
Kamal K Kar
Keyword(s):  
Polymer Electrolytes ◽  
Vinylidene Fluoride ◽  
Complex Impedance ◽  
Weight Ratio ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Spectroscopic Techniques ◽  
Lithium Triflate ◽  
Increase With Increase ◽  
Poly Vinylidene Fluoride

Polymer electrolytes consisting of poly(vinylidene fluoride-co-hexafluoropropylene) in combination with lithium triflate (LiCF3SO3) salt of varying concentration have been prepared using the conventional solution casting technique in the argon atmosphere. Structural electrical characterizations of the synthesized electrolytes have been performed using various imaging and spectroscopic techniques. The DC conductivities determined by complex impedance plots reveal gradual increase with increase in salt concentration up to a particular limit and decrease subsequently. The maximum DC conductivity obtained at 300 K is 1.64 × 10−4 Scm−1 for the electrolyte with a polymer to salt weight ratio of 1:1.8. The temperature-dependent conductivity followed a mixed Arrhenius and Vogel–Tamman–Fulcher type behaviour for the polymer electrolytes. From the Summerfield master curve plot, the conductivity of the solid polymer electrolytes is found to depend not only on ion dynamics but also on the segmental mobility of the polymer chains.

scholarly journals Effect of the Different Crystallinity of Ionic Liquid Based Solid Polymer Electrolyte on the Performance of Amperometric Gas Sensor

2020 ◽  
Vol 2 (1) ◽  
pp. 37
Author(s):  
Petr Sedlák ◽  
Petr Kuberský ◽  
Adam Gajdoš ◽  
Jiří Majzner ◽  
Vlasta Sedláková ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Gas Sensor ◽  
Electrochemical Sensors ◽  
Vinylidene Fluoride ◽  
Limit Of Detection ◽  
Point Of View ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Current Response ◽  
Poly Vinylidene Fluoride

Solid polymer electrolytes (SPE) based on ionic liquid, poly-(vinylidene fluoride) and solvent N-methyl-pyrrolidone represent an effective component in electrochemical sensors. The advantage lies in their composition, which offers an opportunity to prepare SPE layers with a different porosity and microstructure. The study shows how the SPEs of different crystallinities affect the performance of an amperometric gas sensor from the point of view of current response (sensitivity), limit of detection and current fluctuations. The morphology of SPE has an impact not only on its conductivity but also on sensor sensitivity due to the morphology of the interface SPE/working electrode (WE).

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