Structural, electrical conductivity, and transport analysis of PAN–NH4Cl polymer electrolyte system

Sikkanthar, S.; Karthikeyan, S.; Selvasekarapandian, S.; Dorai, Arunkumar; Nithya, H.; Kawamura, Junichi

doi:10.1007/s11581-016-1645-x

Cited by 37 publications

(9 citation statements)

References 45 publications

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“…Independently of the above-described doubts, the above-described Wagner's method [113] is from time to time applied to the polymeric electrolytes with both metal ions [114,115], as well as, protonic conductivities [116][117][118][119][120][121][122][123]. Therefore, it is worth analyzing both its proper and misused applications.…”

Section: Wagner's Methods and Its Modificationsmentioning

confidence: 99%

Transference Number Determination in Poor-Dissociated Low Dielectric Constant Lithium and Protonic Electrolytes

et al. 2021

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Whereas the major potential of the development of lithium-based cells is commonly attributed to the use of solid polymer electrolytes (SPE) to replace liquid ones, the possibilities of the improvement of the applicability of the fuel cell is often attributed to the novel electrolytic materials belonging to various structural families. In both cases, the transport properties of the electrolytes significantly affect the operational parameters of the galvanic and fuel cells incorporating them. Amongst them, the transference number (TN) of the electrochemically active species (usually cations) is, on the one hand, one of the most significant descriptors of the resulting cell operational efficiency while on the other, despite many years of investigation, it remains the worst definable and determinable material parameter. The paper delivers not only an extensive review of the development of the TN determination methodology but as well tries to show the physicochemical nature of the discrepancies observed between the values determined using various approaches for the same systems of interest. The provided critical review is supported by some original experimental data gathered for composite polymeric systems incorporating both inorganic and organic dispersed phases. It as well explains the physical sense of the negative transference number values resulting from some more elaborated approaches for highly associated systems.

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Section: Wagner's Methods and Its Modificationsmentioning

confidence: 99%

Transference Number Determination in Poor-Dissociated Low Dielectric Constant Lithium and Protonic Electrolytes

et al. 2021

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“…2 (a) and (b) depicts both real and imaginary part of the electric moduli at temperatures between 303K to 343K for PEIL08. At low frequencies, M r and M i approaches zero for all temperatures indicating that electrode polarization phenomenon makes negligible contribution [13]. The presence of the long tail at the low frequency end is attributed to the large capacitance associated with the electrodes [14], which gives added evidence of the suppression of electrode polarization.…”

Section: Resultsmentioning

confidence: 91%

Dielectric Studies of PEO-based Polymer Electrolytes Doped with LiTFSI Salt and EMIMTFSI Ionic Liquid

Hashim¹,

Subban²

2019

IJET

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In this work, poly (ethylene oxide) (PEO) is doped with Lithium bis (trifluoromethanesulfonyl) imide (LiTFSI) salt and 1-Ethyl-3-methylimidazolium bis (trifluromethanesulfonyl) imide (EMIm-TFSI) ionic liquid, a plasticiser, for preparation of PEO-LiTFSI-EMImTFSI plasticised polymer electrolyte (PPE) system. Impedance spectroscopy is used to analyse the dependence of dielectric behaviour of the films on frequency and temperature. It is performed in the temperature range between 303K to 343K for frequencies between 50 Hz to 1 MHz. The cationic transport in the films may be explained from the dielectric constant, ԑr and dielectric loss, ԑi where they are found to increase with temperature at lower frequency and decrease at higher frequency, showing that the electrodes were being polarized. Both real parts, Mr and imaginary part, Mi of the modulus showed an increase at high frequency that indicates the spread of conductivity relaxation. The highest temperature (343K) achieved the lowest relaxation time, τ due to increase in number of ions and increase in mobility of ions in the polymer system indicating that conductivity in this system is thermally activated.

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“…Figure (a) shows the spectrum of PAN, where the peak at 2244 cm −1 was due to C≡N stretching vibrations. The peak at 1453 cm −1 confirmed the presence of CH 2 bending . Figure (b) illustrates the spectrum of P(VP‐ co ‐Vac), in which the peak at 1734 cm −1 was due to the CO stretching of poly(vinyl acetate) (PVAc) and the peak at 1660 cm −1 confirmed the presence of poly(vinyl pyrrolidone) (PVP).…”

Section: Resultsmentioning

confidence: 99%

“…The peak at 1453 cm −1 confirmed the presence of CH 2 bending. 39,40 Figure 6 (b) illustrates the spectrum of P(VP-co-Vac), in which the peak at 1734 cm −1 was due to the C O stretching of poly(vinyl acetate) (PVAc) and the peak at 1660 cm −1 confirmed the presence of poly(vinyl pyrrolidone) (PVP). The peaks at 1233 and 1020 cm −1 expressed the presence of the CN stretching of PVP and C─O─C stretching vibrations of PVAc, respectively.…”

Section: Dielectric Permittivity and Electric Modulus Studiesmentioning

confidence: 99%

Polyacrylonitrile–poly(1‐vinyl pyrrolidone‐co‐vinyl acetate) blend based gel polymer electrolytes incorporated with sodium iodide salt for dye‐sensitized solar cell applications

Saidi

Omar

et al. 2019

J of Applied Polymer Sci

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New gel polymer electrolytes (GPEs) were prepared via the blending of a polyacrylonitrile polymer and a poly(1‐vinyl pyrrolidone‐co‐vinyl acetate) copolymer. The sodium iodide (NaI) salt concentration was varied for each GPE sample. From ionic conductivity (σ) studies, we observed that the sample with a 40 wt % NaI salt content (N40) showed the highest σ of 3.54 × 10−3 ± 0.05 S/cm at room temperature, and all of the GPE samples obeyed Arrhenius behavior. The dielectric properties of the GPE samples were also analyzed to study the electrical polarization of the materials. The developed GPE samples were also characterized with X‐ray diffraction and Fourier transform infrared spectroscopy. We also then used the developed GPE samples for the fabrication of dye‐sensitized solar cells by sandwiching them between a photoanode and Pt counter electrode for photovoltaic studies. The highest photovoltaic performance was achieved by N40, with an efficiency of 3.04%. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47810.

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Structural, electrical conductivity, and transport analysis of PAN–NH4Cl polymer electrolyte system

Cited by 37 publications

References 45 publications

Transference Number Determination in Poor-Dissociated Low Dielectric Constant Lithium and Protonic Electrolytes

Transference Number Determination in Poor-Dissociated Low Dielectric Constant Lithium and Protonic Electrolytes

Dielectric Studies of PEO-based Polymer Electrolytes Doped with LiTFSI Salt and EMIMTFSI Ionic Liquid

Polyacrylonitrile–poly(1‐vinyl pyrrolidone‐co‐vinyl acetate) blend based gel polymer electrolytes incorporated with sodium iodide salt for dye‐sensitized solar cell applications

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