Effect of plasticizer on conductivity and cell parameters of (PMMA+NaClO4) polymer electrolyte system

Sekhar, P. Chandra

doi:10.9790/4861-0240106

Cited by 20 publications

(8 citation statements)

References 25 publications

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“…It has also been reported that the addition of NH 4 F salt into carboxymethylcellulose (CMC) film has increased the ionic conductivity of the electrolyte [27]. The dissociation of salt is affected by the plasticization process that provides more conducting paths for the mobile ions to migrate, thus increasing the ionic conductivity [28]. Meanwhile, Chai and Isa [29] mentioned that glycerol has the ability to increase the ionic mobility of the CMC-oleic acid electrolyte system and hence enhance ionic conductivity.…”

Section: Introductionmentioning

confidence: 99%

Metal Complex as a Novel Approach to Enhance the Amorphous Phase and Improve the EDLC Performance of Plasticized Proton Conducting Chitosan-Based Polymer Electrolyte

et al. 2020

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This work indicates that glycerolized chitosan-NH4F polymer electrolytes incorporated with zinc metal complexes are crucial for EDLC application. The ionic conductivity of the plasticized system was improved drastically from 9.52 × 10−4 S/cm to 1.71 × 10−3 S/cm with the addition of a zinc metal complex. The XRD results demonstrated that the amorphous phase was enhanced for the system containing the zinc metal complex. The transference number of ions (tion) and electrons (te) were measured for two of the highest conducting electrolyte systems. It confirmed that the ions were the dominant charge carriers in both systems as tion values for CSNHG4 and CSNHG5 electrolytes were 0.976 and 0.966, respectively. From the examination of LSV, zinc improved the electrolyte electrochemical stability to 2.25 V. The achieved specific capacitance from the CV plot reveals the role of the metal complex on storage properties. The charge–discharge profile was obtained for the system incorporated with the metal complex. The obtained specific capacitance ranged from 69.7 to 77.6 F/g. The energy and power densities became stable from 7.8 to 8.5 Wh/kg and 1041.7 to 248.2 W/kg, respectively, as the EDLC finalized the cycles.

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Section: Introductionmentioning

confidence: 99%

Metal Complex as a Novel Approach to Enhance the Amorphous Phase and Improve the EDLC Performance of Plasticized Proton Conducting Chitosan-Based Polymer Electrolyte

et al. 2020

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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: 83%

“…Usually, physical properties of such blends are very much dependent on their phase morphology, degree of mixing and type of interfacial interaction existing between two polymeric components [14,15]. Many polymer blends exhibit properties that are more conducive than that of individual constituent polymers [16].…”

Section: Introductionmentioning

confidence: 99%

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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“…In another study, there has been an increase in conductivity of dextran-ammonium nitrate (NH 4 NO 3 ) system from 3.00 ± 1.60 × 10 −5 Scm −1 to 1.15 ± 0.08 × 10 −3 Scm −1 with 20 wt.% of glycerol addition [13]. The critical step in increasing conductivity depends upon the plasticization process, which facilitates the degree of dissociation of salts [14]. The liquid electrolytes are widely used because of their high performance in various energy devices despite the ease of evaporation and leakage, which causes corrosion [15,16].…”

Section: Introductionmentioning

confidence: 99%

Glycerolized Li+ Ion Conducting Chitosan-Based Polymer Electrolyte for Energy Storage EDLC Device Applications with Relatively High Energy Density

et al. 2020

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In this study, the solution casting method was employed to prepare plasticized polymer electrolytes of chitosan (CS):LiCO2CH3:Glycerol with electrochemical stability (1.8 V). The electrolyte studied in this current work could be established as new materials in the fabrication of EDLC with high specific capacitance and energy density. The system with high dielectric constant was also associated with high DC conductivity (5.19 × 10−4 S/cm). The increase of the amorphous phase upon the addition of glycerol was observed from XRD results. The main charge carrier in the polymer electrolyte was ion as tel (0.044) < tion (0.956). Cyclic voltammetry presented an almost rectangular plot with the absence of a Faradaic peak. Specific capacitance was found to be dependent on the scan rate used. The efficiency of the EDLC was observed to remain constant at 98.8% to 99.5% up to 700 cycles, portraying an excellent cyclability. High values of specific capacitance, energy density, and power density were achieved, such as 132.8 F/g, 18.4 Wh/kg, and 2591 W/kg, respectively. The low equivalent series resistance (ESR) indicated that the EDLC possessed good electrolyte/electrode contact. It was discovered that the power density of the EDLC was affected by ESR.

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Effect of plasticizer on conductivity and cell parameters of (PMMA+NaClO4) polymer electrolyte system

Abstract: Abstract:The effect of a plasticizer dimethyl formamide (DMF)

Cited by 20 publications

References 25 publications

Metal Complex as a Novel Approach to Enhance the Amorphous Phase and Improve the EDLC Performance of Plasticized Proton Conducting Chitosan-Based Polymer Electrolyte

Metal Complex as a Novel Approach to Enhance the Amorphous Phase and Improve the EDLC Performance of Plasticized Proton Conducting Chitosan-Based Polymer Electrolyte

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

Glycerolized Li+ Ion Conducting Chitosan-Based Polymer Electrolyte for Energy Storage EDLC Device Applications with Relatively High Energy Density

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