Electrical, Structural, Optical And Thermal Properties of (1-X)Blend: X LI[(CF3 SO2 ) 2N] Solid Polymer Electrolyte System

2014 ◽  
Author(s):  
Ravindra Kumar Gupta ◽  
Hee-Woo Rhee
Keyword(s):  
Thermal Properties ◽  
Polymer Electrolyte ◽  
Solid Polymer Electrolyte ◽  
Solid Polymer ◽  
Electrolyte System

scholarly journals Highly Conductive Redox-Couple Solid Polymer Electrolyte System: Blend-KI-I2 for Dye-Sensitized Solar Cells

2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
Ravindra Kumar Gupta ◽  
Hee-Woo Rhee
Keyword(s):  
Ionic Conductivity ◽  
Polymer Electrolyte ◽  
Solid Polymer Electrolyte ◽  
Dye Sensitized Solar Cells ◽  
Weight Fraction ◽  
Redox Couple ◽  
Solid Polymer ◽  
Equal Weight ◽  
Electrolyte System ◽  
Dye Sensitized

Ionic conductivity of a redox-couple solid polymer electrolyte system, () blend: [0.9KI : 0.1I2] with in weight fraction, is reported. A blend of poly(ethylene oxide) (abbreviated as PEO) and succinonitrile in equal weight fraction was used as a polymeric matrix instead of the PEO and succinonitrile because of its low-cost, electrical conductivity superior to the PEO, and thermal stability better than the succinonitrile. The electrolyte with showed ionic conductivity of S cm−1 and iodine ion diffusivity of nearly  cm2 s−1 at 25°C. The conductivity and diffusivity values were nearly two orders of magnitude higher than those of the PEO-KI-I2 due to the improved PEO crystallinity. It also exhibited dye-sensitized solar cell efficiency of 2.2% at 100 mW cm−2, which is twice of the cell prepared using the PEO-KI-I2 only.

Effects of Natural Clay on Ionic Conductivity, Crystallinity and Thermal Properties of PEO-LiCF3SO3-Natural Clay as Solid Polymer Electrolyte Nanocomposites

2019 ◽  
Vol 803 ◽  
pp. 98-103 ◽  
Author(s):  
Pattranuch Pongsuk ◽  
Jantrawan Pumchusak
Keyword(s):  
Thermal Properties ◽  
Ionic Conductivity ◽  
Polymer Electrolyte ◽  
Solid Polymer Electrolyte ◽  
Solid Polymer ◽  
Natural Clay ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
Halloysite Nanotube ◽  
Electrolyte Membranes

The polymer nanocomposites of PEO-LiCF3SO3 based solid polymer electrolyte were prepared using two kinds of natural clays, which are halloysite nanotube (HNT) and montmorillonite (MMT) nanoparticle. Different contents (0, 1, 5 and 10wt %) of halloysite nanotube (HNT) and montmorillonite (MMT) nanoparticle were explored. Solid polymer electrolyte nanocomposite film was prepared by solution casting method. The ionic conductivity, crystallinity and thermal properties of solid polymer electrolyte membranes were studied by impedance spectroscopy, X-ray diffraction (XRD) and differential scanning calorimetry (DSC), respectively. It was found that HNT provided higher ionic conductivity for solid polymer electrolyte nanocomposite than what MMT did. The highest ionic conductivity at room temperature was found at 5% HNT as 2.068 x 10-5 S.cm-1. The ion-polymer interactions between PEO-LiCF3SO3 and natural clay nanoparticle were investigated by using Fourier transform infrared (FTIR) spectra. The PEO-LiCF3SO3-5%HNT showed good oxidative stability than PEO-LiCF3SO3 composite.

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