Lithium ion conduction and ion–polymer interaction in PVdF-HFP based gel polymer electrolytes

Isa, Khairul Bahiyah Md.; Osman, Z.; Arof, A. K.; Othman, L.; Zainol, N. H.; Samin, Siti Mariam; Chong, Woon Gie; Kamarulzaman, Norlıda

doi:10.1016/j.ssi.2014.10.012

Cited by 33 publications

(14 citation statements)

References 32 publications

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“…Recently, many researchers have reported the various GPEs with various plasticizers to enhance the different properties such as ionic conductivity, structural properties, surface morphology, etc. 17,18 It is well known that the ionic conductivity of polymer electrolyte depends on the number of charge species and transportation of salt ions occurs through the amorphous region. So, the salt should have low lattice energy and anionic radius so that the ion can diffuse easily through the polymer matrix.…”

Section: Introductionmentioning

confidence: 99%

Ionic conductivity and relaxation studies in PVDF-HFP:PMMA-based gel polymer blend electrolyte with LiClO₄salt

Gohel

Kanchan

2018

J. Adv. Dielect.

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Poly(vinylidene fluoride-hexafluropropylene) (PVDF-HFP) and poly(methyl methacrylate) (PMMA)-based gel polymer electrolytes (GPEs) comprising propylene carbonate and diethyl carbonate mixed plasticizer with variation of lithium perchlorate (LiClO 4 ) salt concentrations have been prepared using a solvent casting technique. Structural characterization has been carried out using XRD wherein diffraction pattern reveals the amorphous nature of sample up to 7.5 wt.% salt and complexation of polymers and salt have been studied by FTIR analysis. Surface morphology of the samples has been studied using scanning electron microscope. Electrochemical impedance spectroscopy in the temperature range 303-363 K has been carried out for electrical conductivity. The maximum room temperature conductivity of 2.83Â10 À4 S cm À1 has been observed for the GPE incorporating 7.5 wt.% LiClO 4 . The temperature dependence of ionic conductivity obeys the Arrhenius relation. The increase in ionic conductivity with change in temperatures and salt content is observed. Transport number measurement is carried out by Wagner's DC polarization method. Loss tangent (tan ) and imaginary part of modulus (M 00 ) corresponding to dielectric relaxation and conductivity relaxation respectively show faster relaxation process with increasing salt content up to optimum value of 7.5 wt.% LiClO 4 . The modulus (M 00 ) shows that the conductivity relaxation is of non-Debye type (broader than Debye peak).

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Section: Introductionmentioning

confidence: 99%

Ionic conductivity and relaxation studies in PVDF-HFP:PMMA-based gel polymer blend electrolyte with LiClO₄salt

Gohel

Kanchan

2018

J. Adv. Dielect.

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“…The parameter B of P(MCA-GM400)-based gel polymer electrolytes is in the range of 8.91 to 10.98 kJ mol −1 . The values are almost equal to or higher than those of the reported gel polymer electrolytes, such as PVDF-HFP-based gel polymer electrolyte (7.72 kJ mol − 1 to 9.85 kJ mol − 1 ) [4], PMMA-based gel polymer electrolyte (3.33 kJ mol − 1 to kJ mol −1 ) [34], PAN-based gel polymer electrolyte (10.6 kJ mol −1 to 14.0 kJ mol −1 ) [35], poly(oxetane) with cyanoethoxy group in the side chain-based gel polymer electrolyte (5.80 kJ mol −1 to 9.39 kJ mol −1 ) [12].…”

Section: Samplementioning

confidence: 58%

“…Unlike the dry solid polymer electrolytes, gel polymer electrolytes are consisting of cross-linked polymer networks swollen by organic liquid electrolytes such as propylene carbonate (PC) or ethylene carbonate (EC) containing lithium salts [4]. In the gel polymer electrolytes, lithium ions are mainly solvated by the liquid solvents and the liquid electrolyte is supported by the interaction with the polymer matrix.…”

Section: Introductionmentioning

confidence: 99%

Gel polymer electrolytes based on poly(methacrylamide) derivative having branched pendant with terminal nitrile groups

et al. 2016

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“…The main component required to prepare GPE is plasticizers which are low molecular weight organic carbonates having slow evaporation.The GPE is comprised of single plasticizer or mixture of two or more includes ethylene carbonate (EC), propylene carbonate (PC), dimethyl carbonate (DMC), diethyl carbonate (DEC), dimethyl formamide (DMF) [1]. Recently, various GPEs system have been reported by a group of researchers by using various plasticizers to boost the structural, electrical and electrochemical properties [20,21]. Subbu et al [22] have designed the GPE system comprised of PEO/PVdC−co−AN /LiClO 4 /X plasticizers.…”

Section: Introductionmentioning

confidence: 99%

Gel polymer electrolyte based on PVDF-HFP:PMMA incorporated with propylene carbonate (PC) and diethyl carbonate (DEC) plasticizers : electrical, morphology, structural and electrochemical properties

Gohel

Kanchan

Machhi

et al. 2020

Mater. Res. Express

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To overcome the drawbacks of organic solvent−based liquid electrolytes and a solid polymer electrolyte as a separator in lithium polymer battery, in the recent study gel polymer electrolyte (GPE) using poly(vinylidene fluoride− hexafluropropylene) (PVDF−HFP) and poly (methyl methacrylate) (PMMA) as host polymers, lithium perchlorate (LiClO 4 ) salt as conducting species and propylene carbonate (PC) and diethyl carbonate (DEC) plasticizers as an organic solvent has been prepared. The solution casting technique has been adopted to fabricate gel polymer electrolyte (GPE). The prepared GPE films were analyzed using different experimental techniques to discover the properties of GPE. The ionic conductivity of GPE films has been carried out using electrochemical impedance spectroscopic technique. The maximum ionic conductivity of 3.97E-4 S cm −1 has been obtained for GPE having 60 wt% PC:DEC. As an evidence of change in ionic conductivity, structural characterization has been analyzed using FTIR and SEM where, FTIR spectra reveal complex formation taking place between polymers, salt, and plasticizers and SEM micrograph shows a change in surface morphology with a change in plasticizers amount. Dielectric analysis has been also carried out in terms of dielectric constant (e¢) and dielectric loss (e). Cyclic voltammetry (CV) has been applied to find electrochemical stability window.

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Lithium ion conduction and ion–polymer interaction in PVdF-HFP based gel polymer electrolytes

Cited by 33 publications

References 32 publications

Ionic conductivity and relaxation studies in PVDF-HFP:PMMA-based gel polymer blend electrolyte with LiClO₄salt

Ionic conductivity and relaxation studies in PVDF-HFP:PMMA-based gel polymer blend electrolyte with LiClO₄salt

Gel polymer electrolytes based on poly(methacrylamide) derivative having branched pendant with terminal nitrile groups

Gel polymer electrolyte based on PVDF-HFP:PMMA incorporated with propylene carbonate (PC) and diethyl carbonate (DEC) plasticizers : electrical, morphology, structural and electrochemical properties

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Lithium ion conduction and ion–polymer interaction in PVdF-HFP based gel polymer electrolytes

Cited by 33 publications

References 32 publications

Ionic conductivity and relaxation studies in PVDF-HFP:PMMA-based gel polymer blend electrolyte with LiClO4salt

Ionic conductivity and relaxation studies in PVDF-HFP:PMMA-based gel polymer blend electrolyte with LiClO4salt

Gel polymer electrolytes based on poly(methacrylamide) derivative having branched pendant with terminal nitrile groups

Gel polymer electrolyte based on PVDF-HFP:PMMA incorporated with propylene carbonate (PC) and diethyl carbonate (DEC) plasticizers : electrical, morphology, structural and electrochemical properties

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Ionic conductivity and relaxation studies in PVDF-HFP:PMMA-based gel polymer blend electrolyte with LiClO₄salt

Ionic conductivity and relaxation studies in PVDF-HFP:PMMA-based gel polymer blend electrolyte with LiClO₄salt