Silver Ion Conducting Characteristics Of A Polyethylene Oxide-based Composite Polymer Electrolyte And Application In Solid State Batteries

Amudha, S.; Suthanthiraraj, S. Austin

doi:10.5185/amlett.2015.5831

Cited by 20 publications

(13 citation statements)

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“…In the case of PEObased polymer electrolytes, reduction in crystallinity phase of PEO is generally associated with its smooth and even surface morphology [43,44]. During the present consideration, the observed surface morphology of the above film has been found to be uniformly patterned, though characterized with [15,40,45]. The surface roughness is frequently associated with a high surface free energy which may aid the attachment of particles to the nucleus and in that way would contribute towards more rapid kinetics of nucleation [46].…”

Section: Surface Morphological Featuresmentioning

confidence: 80%

“…As reported in Table 2, the degree of crystallinity of the electrolyte is found to decline from 57.9 to 36.4 % with the addition of zinc triflate salt from 2.5 to 12.5 wt%. Interestingly, the minimum crystallinity realized at 12.5 wt% loading of salt may be attributed to the realization of a higher amorphous content in the case of PZ5 owing to the most probable disturbance along the PEO side chain existing as a result of interaction of Zn 2+ ions in terms of Lewis acid/base reactions [40]. This feature as inferred from the detailed XRD analysis is found to be in good agreement with the present ionic conductivity measurements since the value of ionic conductivity is by and large enhanced by the amorphous phase of a polymer electrolyte system [19,21].…”

Section: Cation Transport Number Datamentioning

confidence: 95%

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Preparation and characterization of a new PEO-PPG blend polymer electrolyte system

Nancy

Suthanthiraraj

2016

Ionics

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This paper reports on preparation and characterization of thin films of a new zinc ion conducting blended polymer electrolyte system containing polyethylene oxide [PEO] and polypropylene glycol [PPG] complexed with zinc triflate [Zn(CF 3 SO 3 ) 2 ] salt. The room temperature ionic conductivity (σ 298K ) data of such PEO-PPG polymer blends prepared by solution casting technique were found to be of the order of 10 −5 S cm −1 , whereas the optimized composition containing 90:10 wt% ratio of PEO and PPG possessed an appreciably high ionic conductivity of 7.5 × 10 −5 S cm −1 . Subsequently, six different weight percentages of zinc triflate viz., 2.5, 5, 7.5, 10, 12.5 and 15, respectively, were added into the above polymer blend and resulting polymer-salt complexes were characterized by means of various analytical tools. Interestingly, the best conducting specimen namely 87.5 wt% (PEO:PPG)-12.5 wt% Zn(CF 3 SO 3 ) 2 exhibited an enhanced room temperature ionic conductivity of 6.9 × 10 −4 S cm −1 with an activation energy of 0.6 eV for ionic conduction. The present XRD results have indicated the occurrence of characteristic PEO peaks and effects of salt concentration on the observed intensity of these diffraction peaks. Appropriate values of degree of crystallinity for different samples were derived from both XRD and DSC analyses, while an examination of surface morphology of the blended polymer electrolyte system has revealed the formation of homogenous spherulites involving a rough surface and relevant zinc ionic transport number was found to be 0.59 at room temperature for the best conducting polymer electrolyte system thus developed.

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Section: Surface Morphological Featuresmentioning

confidence: 80%

Section: Cation Transport Number Datamentioning

confidence: 95%

Preparation and characterization of a new PEO-PPG blend polymer electrolyte system

Nancy

Suthanthiraraj

2016

Ionics

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“…It has been shown that after the fourth measurement, the parameters describing the temperature dependence of the conductance in the solid state are the same for conductance on direct and alternating currents. 5. It has been shown that the temperature dependence of the conductance of linear polyethylene with a content of 20 wt.% soot and 20 wt.% calcite above the melting point of polymer can be described in the Fig.…”

Section: Dynamics Of the Conductance Temperature Dependence For Lineamentioning

confidence: 99%

“…We consider that the difference between the T 0 value for σ DC (380 K) and σ AC (373 K) is most significant to measure in a solid phase. From our viewpoint, it may be (4), 377 (5), 392 (6), and 408 K (7). Table 2.…”

Section: Dynamics Of the Conductance Temperature Dependence For Lineamentioning

confidence: 99%

“…Therefore, an important scientific task is to study the electrical properties of these composite materials at those concentrations of impurities, at which they have the most suitable parameters for practical use. Electrical properties of polymers with different type conductive impurities are investigated for a relatively long time [1][2][3][4][5][6][7][8][9]. In the recent papers, nanoparticles [10][11][12][13][14][15][16][17], in particular nanotubes [18][19][20][21], were used to a greater extent as impurities.…”

Section: Introductionmentioning

confidence: 99%

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Dynamics of the conductance temperature dependence for composite based on linear polyethylene with impurity of soot and calcite

Poberezhets¹

2019

Semicond. phys., quantum electron. optoelectron.

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Within the temperature 293 to 425 K and frequency 10 -3 to 10 6 Hz ranges by using the direct and alternating currents, the dynamics of electrical conductance σ of linear polyethylene with the impurity of 20 wt.% soot and 20 wt.% CaCO 3 (calcite) has been investigated. It has been shown that for the solid state of polyethylene (below 380 K), the dependence of electrical conductance on the temperature T on both the direct (σ DC ) and alternating (σ AC ) currents can be described by the power dependence on ( )is the temperature of the phase transition for polyethylene). It has been shown that when being repeatedly measured, the σ DC and σ AC values increase, and the power indexes of temperature dependence decrease. The measured values are stable after the fourth measurement. The greatest changes in the conductance, depending on the first and second measurements (almost three orders of magnitude), were observed at a temperature close to T 0 . It has been assumed that the dynamics of electrical conductance, depending on the number of measurements, is caused by the influence of the electric field on the ordering of impurity in polymer. It has been shown that for T > 380 K, the typical for liquids Arrhenius dependence of σ DC and σ AC on temperature is observed. It has been found that at the first measurement, the temperature dependence of σ DC and σ AC can be described by two activation energies, while for a stable state (starting from the fourth measurement)by one activation energy (within the measurement error of the same for σ DC and σ AC and equal to 1 eV).

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Effects of the electrolyte content on the electrical permittivity, thermal stability, and optical dispersion of poly(vinyl alcohol)–cesium copper oxide–lithium perchlorate nanocomposite solid‐polymer electrolytes

Al-Gunaid

Saeed²,

Siddaramaiah³

2017

J of Applied Polymer Sci

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Solid‐polymer electrolytes (SPEs) in the form of poly(vinyl alcohol) (PVA) doped with various amounts (5, 10, and 15 wt %) of lithium perchlorate trihydrate (LiClO4·3H2O) and 2 wt % cesium copper oxide (Cs2CuO2) nanoparticles were fabricated by a solvent intercalation method. The obtained nanocomposites were evaluated for their chemical structure and microstructural and morphological behaviors via Fourier transform infrared spectroscopy, X‐ray diffraction, and scanning electron microscopy methods, respectively. The obtained dielectric behaviors, alternating‐current conductivity, dielectric modulus, and dielectric relaxation of the SPEs depended on the volume fraction of the electrolyte. Linear behavior of the current–voltage characteristics for all of the SPE films was observed with a slight deviation at a higher voltage. The thermal behaviors of the PVA–Cs2CuO2–LiClO4 films were evaluated by differential scanning calorimetry and thermogravimetric analysis. The refractive index, band‐gap energy, and optical dispersion were examined with UV–visible spectroscopy. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 45852.

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Silver Ion Conducting Characteristics Of A Polyethylene Oxide-based Composite Polymer Electrolyte And Application In Solid State Batteries

Cited by 20 publications

References 0 publications

Preparation and characterization of a new PEO-PPG blend polymer electrolyte system

Preparation and characterization of a new PEO-PPG blend polymer electrolyte system

Dynamics of the conductance temperature dependence for composite based on linear polyethylene with impurity of soot and calcite

Effects of the electrolyte content on the electrical permittivity, thermal stability, and optical dispersion of poly(vinyl alcohol)–cesium copper oxide–lithium perchlorate nanocomposite solid‐polymer electrolytes

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