Role of preparation methods on the structural and dielectric properties of plasticized polymer blend electrolytes: Correlation between ionic conductivity and dielectric parameters

Sengwa, R. J.; Dhatarwal, Priyanka; Choudhary, Shobhna

doi:10.1016/j.electacta.2014.07.120

Cited by 107 publications

(67 citation statements)

References 53 publications

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“…These two broad peaks indicate the amorphous phase nature of host polymer [25]. Conversely, the sharp peaks found in pure LiCF3SO3 indicate that the compound is in complete crystalline nature [26]. It can be clearly seen from Fig.…”

Section: Xrd Analysismentioning

confidence: 89%

Effect of Al2O3 in poly(methyl methacrylate) composite polymer electrolytes

Sun¹,

You²,

Teo³

et al. 2018

AIP Conference Proceedings

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Section: Xrd Analysismentioning

confidence: 89%

Effect of Al2O3 in poly(methyl methacrylate) composite polymer electrolytes

Sun¹,

You²,

Teo³

et al. 2018

AIP Conference Proceedings

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“…In summary, the M′ values for both M 0 and M 40 portrayed long tail approaching zero at low frequency, because the transportation of ions in these polymer electrolytes were not influenced by the electric field. At this point, the relaxation process was independent from the nature of electrode materials, the contact between electrode/specimen, and the impurities adsorbed on the polymer electrolytes [22,24]. Figure 4b-d represents the variation of M″ values with frequency for M 0 and M 40 from 303 to 363 K, respectively.…”

Section: Electric Modulus Studiesmentioning

confidence: 94%

“…Dielectric loss (ɛ″) quantifies the amount of heat dissipated during ion transportation and dipole polarization [22]. The ɛ′ and ɛ″ spectra provide information on the dielectric polarization processes and the polymer dynamics at different electrical field and temperature [24]. Figure 3a-c describes the variation of dielectric permittivity with frequency for M 0 and M 40 from 303 to 363 K, respectively.…”

Section: Dielectric Relaxation Studiesmentioning

confidence: 99%

Effects of ionic liquid on the hydroxylpropylmethyl cellulose (HPMC) solid polymer electrolyte

Chong

Liew

Numan

et al. 2016

Ionics

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Biodegradable solid polymer electrolyte (SPE) is prepared by solution-casting technique using low-cost cellulose derivative, hydroxypropylmethyl cellulose (HPMC) as a host polymer. Owing to the hydrophobic nature of this polymer, it is predicted to exhibit low ionic conductivity upon addition of magnesium trifluoro methanesulfonate (MgTf 2 ) salt. Therefore, ionic liquid (IL), 1-butyl-3-methylimidazolium trifluoro methanesulfonate (BMIMTf), is added in order to enhance its ionic conductivity. Based on the findings, the ionic conductivity at room temperature and the dielectric behaviors of the SPE complex improved upon incorporation of 40 wt.% IL. On top of that, addition of IL reduces the degree of crystallinity and the glass transition temperature (T g ) of the SPE. The conductivity-temperature plot revealed that the transportation of ions in these films obey Arrhenius theory. The interaction between SPE complex, MgTf 2 salt, and BMIMTf is investigated by means of Fourier transform infrared (FTIR) spectroscopy through the change in peak intensity around 3413, 1570, and 1060 cm −1 , which are responsible for -OH stretching band, C-C and C-N bending modes of cyclic BMIM + , and C-O-C stretching band, respectively.

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“…Furthermore, these polymer electrolytes are well known for certain advantages they possess over conventional liquid electrolytes, some of which include their high flexibility, leak-proof nature, feasibility of miniaturization, lack of corrosion and mechanical strength [1][2][3][4][5]. However, such polymer electrolytes are not practically viable for direct utilization in high-energy power sources due to their low ionic conductivity values noticed at ambient temperatures [6].…”

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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Role of preparation methods on the structural and dielectric properties of plasticized polymer blend electrolytes: Correlation between ionic conductivity and dielectric parameters

Cited by 107 publications

References 53 publications

Effect of Al2O3 in poly(methyl methacrylate) composite polymer electrolytes

Effect of Al2O3 in poly(methyl methacrylate) composite polymer electrolytes

Effects of ionic liquid on the hydroxylpropylmethyl cellulose (HPMC) solid polymer electrolyte

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

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