Effect of plasticizers on ionic conductivity and dielectric relaxation of PEO-LiClO4 polymer electrolyte

Das, Sayan; Ghosh, A.

doi:10.1016/j.electacta.2015.04.178

Cited by 156 publications

(97 citation statements)

References 26 publications

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“…Numerous efforts have been made to enhance the ionic conduction of SPEs including addition of plasticizers and fillers, synthesis of copolymers, single‐ion conductive electrolytes, polymer‐in‐salt electrolytes and many more . Several studies have revealed that low‐molecular‐weight plasticizers such as ethylene carbonate (EC; ϵ = 89.78), propylene carbonate (ϵ = 66.14) and dimethyl carbonate (ϵ = 3.17) enhance mobility of ions through decreasing the crystalline regions of a polymer matrix and simplifying polymer chain movements . However, poor mechanical properties are major drawbacks associated with such plasticized polymer electrolytes .…”

Section: Introductionmentioning

confidence: 99%

Nanofibrous poly(ethylene oxide)‐based structures incorporated with multi‐walled carbon nanotube and graphene oxide as all‐solid‐state electrolytes for lithium ion batteries

Banitaba

Semnani

Heydari-Soureshjani

et al. 2019

Polymer International

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Nanofibrous solid polymer electrolytes were prepared using the electrospinning method. These nanofibres were constructed from poly(ethylene oxide), lithium perchlorate and ethylene carbonate, which were incorporated with multi‐walled carbon nanotube (MWCNT) and graphene oxide (GO). The morphological properties of the as‐prepared electrolytes and the interaction between the components of the composites were characterized using scanning electron microscopy and Fourier transform infrared spectroscopy, respectively. X‐ray spectra and differential scanning calorimetry indicated an increase in amorphous regions of the nanofibrous electrolytes on addition of the fillers. However, the crystalline regions were increased on incorporation of fillers into polymeric film electrolytes. The conductivity values of the nanofibrous electrolytes reached 0.048 and 0.057 mS cm−1 when 0.35 wt% MWCNT and 0.21 wt % GO were introduced into the nanofibrous structures, respectively. The capacity and cycling stability of the nanofibrous electrolytes were improved by incorporation of MWCNT filler. Furthermore, stress and elongation modulus were improved at low MWCNT and GO filler contents. Results revealed that the nanofibrous structures could be promising candidates as solvent‐free electrolytes applicable in lithium ion batteries. © 2019 Society of Chemical Industry

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Section: Introductionmentioning

confidence: 99%

Nanofibrous poly(ethylene oxide)‐based structures incorporated with multi‐walled carbon nanotube and graphene oxide as all‐solid‐state electrolytes for lithium ion batteries

Banitaba

Semnani

Heydari-Soureshjani

et al. 2019

Polymer International

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“…[17]. The incorporated plasticizer must have high dielectric constant than the polymer because high dielectric constant plasticizer solvates lithium salts easily leading to higher ionic conductivity [18,19]. Gel polymer electrolytes overcome the drawbacks such as leakage, evaporation arising in liquid electrolytes, and the poor ionic conductivity of solid polymer electrolytes thus making gel polymer electrolytes prominent than its contemporaries [20,21].…”

Section: Introductionmentioning

confidence: 99%

Influence of plasticizer on ionic conductivity of PVC-PBMA polymer electrolytes

Arunkumar

Babu

Rani

et al. 2017

Ionics

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Plasticized polymer electrolytes comprising of ethylene carbonate as the plasticizing agent in poly (vinyl chloride) [PVC]-poly (butyl methacrylate) [PBMA] blended polymer electrolytes were prepared by solution casting technique.Complex formation, structural elucidation, conductivity, dielectric parameters ( ′, ″, M′, and M″), thermal stability, and surface morphology are brought out from FTIR, XRD, ac impedance analysis, dielectric studies, thermogravimetry/ differential thermal analysis, and scanning electron microscopic studies, respectively. Polymer electrolytes are found to exhibit higher ionic conductivity at higher concentration of plasticizer at the cost of their mechanical stability. Conductivity of 1.879 × 10 −4 S cm −1 is exhibited by the polymer electrolyte consisting of 69% of plasticizer with appreciable thermal stability up to 523 K. Temperature and frequency dependence of conductivity is found to follow Vogel Tammann Fulcher relation and Jonscher power law, respectively. Real and imaginary parts of dielectric constants are found to decrease with increase in frequency which could be due to the electrode polarization effect.

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“…Although, poor ionic conduction value of SPEs (10 −8 –10 −6 S.cm −1 ) has suppressed their potential for use in various applications . Over the years, considerable efforts have been devoted to enhancing ionic conductivity of SPEs such as the development of polymer‐in‐salt and single‐ion conducting systems, the addition of plasticizers and fillers, and so on . Introduction of plasticizers to polymer membrane structures has been one of the promising lines of investigations .…”

Section: Introductionmentioning

confidence: 99%

Evaluating the electrochemical properties of PEO‐based nanofibrous electrolytes incorporated with TiO₂ nanofiller applicable in lithium‐ion batteries

Banitaba

Semnani

Rezaei

et al. 2019

Polymers for Advanced Techs

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In the present work, nanofibrous composite polymer electrolytes consist of polyethylene oxide (PEO), ethylene carbonate (EC), propylene carbonate (PC), lithium perchlorate (LiClO4), and titanium dioxide (TiO2) were designed using response surface method (RSM) and synthesized via an electrospinning process. Morphological properties of the as‐prepared electrolytes were studied using SEM. FTIR spectroscopy was conducted to investigate the interaction between the components of the composites. The highest room temperature ionic conductivity of 0.085 mS.cm−1 was obtained with incorporation of 0.175 wt. % TiO2 filler into the plasticized nanofibrous electrolyte by EC. Moreover, the optimum structure was compared with a film polymeric electrolyte prepared using a film casting method. Despite more amorphous structure of the film electrolyte, the nanofibrous electrolyte showed superior ion conductivity possibly due to the highly porous structure of the nanofibrous membranes. Furthermore, the mechanical properties illustrated slight deterioration with incorporation of the TiO2 nanoparticles into the electrospun electrolytes. This investigation indicated the great potential of the electrospun structures as all‐solid‐state polymeric electrolytes applicable in lithium ion batteries.

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Effect of plasticizers on ionic conductivity and dielectric relaxation of PEO-LiClO4 polymer electrolyte

Cited by 156 publications

References 26 publications

Nanofibrous poly(ethylene oxide)‐based structures incorporated with multi‐walled carbon nanotube and graphene oxide as all‐solid‐state electrolytes for lithium ion batteries

Nanofibrous poly(ethylene oxide)‐based structures incorporated with multi‐walled carbon nanotube and graphene oxide as all‐solid‐state electrolytes for lithium ion batteries

Influence of plasticizer on ionic conductivity of PVC-PBMA polymer electrolytes

Evaluating the electrochemical properties of PEO‐based nanofibrous electrolytes incorporated with TiO₂ nanofiller applicable in lithium‐ion batteries

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Effect of plasticizers on ionic conductivity and dielectric relaxation of PEO-LiClO4 polymer electrolyte

Cited by 156 publications

References 26 publications

Nanofibrous poly(ethylene oxide)‐based structures incorporated with multi‐walled carbon nanotube and graphene oxide as all‐solid‐state electrolytes for lithium ion batteries

Nanofibrous poly(ethylene oxide)‐based structures incorporated with multi‐walled carbon nanotube and graphene oxide as all‐solid‐state electrolytes for lithium ion batteries

Influence of plasticizer on ionic conductivity of PVC-PBMA polymer electrolytes

Evaluating the electrochemical properties of PEO‐based nanofibrous electrolytes incorporated with TiO2 nanofiller applicable in lithium‐ion batteries

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Evaluating the electrochemical properties of PEO‐based nanofibrous electrolytes incorporated with TiO₂ nanofiller applicable in lithium‐ion batteries