Lithium ion conduction in PVA-based polymer electrolyte system modified with combination of nanofillers

Sunitha, V. R.; Kabbur, Suraj Kumar M.; Pavan, G. S.; Sandesh, N.; Suhas, M. R.; Lalithnarayan, C.; Laxman, N.; Radhakrishnan, Shanthi

doi:10.1007/s11581-019-03225-9

Cited by 19 publications

(11 citation statements)

References 21 publications

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“…Polymer electrolytes are membranes for the ion transport mechanism. For example, a poly(vinyl alcohol) (PVA) polymer host is as assumed to be one of the cornerstones for the preparation of various types of polymer electrolytes, because of its capability of dissolving a number of inorganic salts and also its biodegradability [6,7]. On the other hand, composites and natural polyphenols are crucial for membrane separation technology and the treatment of wastewater dyes [8,9].…”

Section: Introductionmentioning

confidence: 99%

Structural, Morphological, Electrical and Electrochemical Properties of PVA: CS-Based Proton-Conducting Polymer Blend Electrolytes

2020

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Polymer blend electrolytes based on poly(vinyl alcohol):chitosan (PVA:CS) incorporated with various quantities of ammonium iodide were prepared and characterized using a range of electrochemical, structural and microscopic techniques. In the structural analysis, X-ray diffraction (XRD) was used to confirm the buildup of the amorphous phase. To reveal the effect of dopant addition on structural changes, field-emission scanning electron microscope (FESEM) was used. The protrusions of salt aggregates with large quantity were seen at the surface of the formed films at 50 wt.% of the added salt. The nature of the relationship between conductivity and dielectric properties was shown using electrochemical impedance spectroscopy (EIS). The EIS spectra were fitted with electrical equivalent circuits (EECs). It was observed that both dielectric constant and dielectric loss were high in the low-frequency region. For all samples, loss tangent and electric modulus plots were analyzed to become familiar with the relaxation behavior. Linear sweep voltammetry (LSV) and transference number measurement (TNM) were recorded. A relatively high cut-off potential for the polymer electrolyte was obtained at 1.33 V and both values of the transference number for ion (tion) and electronic (telec) showed the ion dominant as charge carrier species. The TNM and LSV measurements indicate the suitability of the samples for energy storage application if their conductivity can be more enhanced.

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Section: Introductionmentioning

confidence: 99%

Structural, Morphological, Electrical and Electrochemical Properties of PVA: CS-Based Proton-Conducting Polymer Blend Electrolytes

2020

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“…It was reported that the electrical conductivity was improved by incorporating the salt of LiAsF6 with the PVAL host polymer 13 . Also, the addition of nanofillers to LiClO 4 /PVAL or piperidinium cations with lithium bis(trifluoromethanesulfonyl)imide on PVAL cause an increase in DC electrical conductivity of the solid polymer electrolyte for Li‐ion batteries 14,15 . An electrolyte film based on PVAL with Li‐ion conducting gel was prepared for electrical double‐layer capacitors 16 …”

Section: Introductionmentioning

confidence: 99%

Structural, electrical, and nonlinear optical performance of PVAL embedded with Li⁺‐ions for multifunctional devices

Ali

Abdelaziz

Nawar

et al. 2020

Polymers for Advanced Techs

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In this paper, pure and 0.04%, 0.19%, 0.4%, 1.9%, and 4% LiNO3‐doped PVAL (polyvinyl alcohol) electrolyte were fabricated in the form of solid films by the casting process. The influence of Li+‐ions on PVAL was identified by some characterization tools such as X‐ray diffraction, FT‐IR (Fourier transform infrared), scanning electron microscope (SEM), thermal gravimetric analysis (TGA), UV‐visible‐NIR spectroscopy, dielectric, and conductivity measurements. X‐ray diffraction studies indicate that the semicrystalline of PVAL and the calculated crystallize size from Gaussian fitting were decreased with Li+‐ions concentration. FT‐IR results indicate that there is strong interaction among doping ions and the matrix. The surface morphology of the electrolyte films was studied via SEM. The optical studies demonstrate that the transmittance of films decreased with the rising of Li+‐ions. Urbach's energy and bandgap are also reduced with adding more ions. Different empirical equations were used to study the relation between the energy gap and the refractive index. The index of refraction of the films has average values in 2.024 to 2.078 range. Li+‐ion concentrations critically influenced the factors of nonlinearity. The calculated values of nonlinear optical susceptibility χ(3) and refractive index n2 were increased from 8.6 × 10−13 esu and 1.55 × 10−11 to 20.56 × 10−10 esu and 2.05 × 10−11, respectively. The dielectric constant and loss measurements of the PVAL embedded with 4% of LiNO3 (SPL‐5) were decreased exponentially with increasing the incident frequency. The AC electrical conductivity (σAC) and nonlinear I‐V curves are enhanced by increasing the Li+‐ion contents. The electrical current was increased with small resistivity for SPL‐5 film. The studied films have an inimitable result in various fields, such as nonlinear optical and varistor devices.

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“…Other than this, Sunitha et al 49 prepared PVA-based nanocomposite solid polymer electrolyte (NCSPE) films where they incorporated numerous fillers like barium titanate (BaTiO 3 ), MMT, strontium titanate (SrTiO 3 ) and aluminum oxide (Al 2 O 3 ) with particle size less than 100 nm to PVA-LiClO 4 matrix. These samples were denoted as:…”

Section: Resultsmentioning

confidence: 99%

“…Details of supercapacitors reported from the author's laboratory 49. PVA-polyacrylonitrile (PAN),89 PVA-PMA101 polymer blends have already been studied.…”

mentioning

confidence: 99%

Ionic liquid dispersed highly conducting polymer electrolyte for supercapacitor application: Current scenario and prospects “ICSEM 2021”

Mathela

Kumar

Singh

et al. 2022

High Performance Polymers

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Ionic liquid (IL) is now being considered as a novel contender in the development of highly conducting polymer electrolytes rather than a solvent. It has a significant impact on the electrochemical performance of polymer electrolytes. This study emphasizes the significance of low viscosity IL dispersion within a polymer (PVA) matrix. The electrical, structural and photoelectrochemical properties of the IL-doped polymer electrolyte are discussed in detail. These highly conducting IL doped solid polymer electrolytes show promise towards the development of highly efficient Supercapacitors.

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Lithium ion conduction in PVA-based polymer electrolyte system modified with combination of nanofillers

Cited by 19 publications

References 21 publications

Structural, Morphological, Electrical and Electrochemical Properties of PVA: CS-Based Proton-Conducting Polymer Blend Electrolytes

Structural, Morphological, Electrical and Electrochemical Properties of PVA: CS-Based Proton-Conducting Polymer Blend Electrolytes

Structural, electrical, and nonlinear optical performance of PVAL embedded with Li⁺‐ions for multifunctional devices

Ionic liquid dispersed highly conducting polymer electrolyte for supercapacitor application: Current scenario and prospects “ICSEM 2021”

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Lithium ion conduction in PVA-based polymer electrolyte system modified with combination of nanofillers

Cited by 19 publications

References 21 publications

Structural, Morphological, Electrical and Electrochemical Properties of PVA: CS-Based Proton-Conducting Polymer Blend Electrolytes

Structural, Morphological, Electrical and Electrochemical Properties of PVA: CS-Based Proton-Conducting Polymer Blend Electrolytes

Structural, electrical, and nonlinear optical performance of PVAL embedded with Li+‐ions for multifunctional devices

Ionic liquid dispersed highly conducting polymer electrolyte for supercapacitor application: Current scenario and prospects “ICSEM 2021”

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Structural, electrical, and nonlinear optical performance of PVAL embedded with Li⁺‐ions for multifunctional devices