A Single Ionic Conductor Based on Nafion and Its Electrochemical Properties Used As Lithium Polymer Electrolyte

Abstract

In an attempt to raise the transport number of Li+ to nearly unity in solid polymer electrolytes, commercial perfluorinated sulfonate acid membrane Nafion 117 was lithiated and codissolved with copolymer poly(vinylidene fluoride)hexafluoropropylene. The effect of fumed silica on the physical and electrochemical properties of the single ion conduction polymer electrolyte was studied with atom force microscopy, fourier transform infrared spectroscopy, differential scanning calorimetry, and electrochemical impedance spectroscopy. It was confirmed that the fumed silica has an obvious effect on the morphology of polymer electrolyte membranes and ionic conductivity. The resulting materials exhibit good film formation, solvent-maintaining capability, and dimensional stability. The lithium polymer electrolyte after gelling with a plasticizer shows a high ionic conductivity of 3.18 × 10-4 S/cm.

ZnO decorated TiO2 nanosheet composites for lithium ion battery

“…Electrochemical impedance spectroscopy (EIS) is a powerful tool to investigate the interfacial charge transfer process [39][40][41]. Fig.…”

Enhanced electrochemical properties of nanocomposite polymer electrolyte based on copolymer with exfoliated clays

“…The affinity between lithium salts and PVDF-based polymer is very poor, so polar solvent (or plasticizer) should be added in GPEs systems [11,18,26]. EC and DMC were used in this work based upon their boiling point, viscosity, and dielectric constant [27].…”

“…The ionic conductivity of GPEs at temperatures ranging from −5 to 60 • C was estimated from the ac electrochemical impedance spectroscopy (EIS) results. The GPES were sandwiched between two stainless steel (SS 304) electrodes within a laboratory built Teflon cell [11]. The GPEs membranes have the thickness about 50-150 m and area about 0.785 cm 2 .…”

“…However, in those CPEs systems the cationic transference number is relative low (about 0.2-0.4) [9]. Many research interests were put on the methods to increase the cationic transference number by using single ionic polymer electrolytes [10,11] or addition anion receptors [12].…”

Solvent‐Free Ionic Liquid Electrolytes for Mesoscopic Dye‐Sensitized Solar Cells

“…It may be used to investigate the charge carrier dynamics in the bulk or interfacial regions of any kind of solid or liquid material, including ionic, semiconducting, mixed electronic-ionic conductors and even insulators (dielectrics). [54,55] In this section the focus is on the application of EIS in analyzing the performance of IL-based DSCs.…”