Molecular interaction and ionic conductivity of polyethylene oxide– nanocomposites

Dey, Arup; Karan, Santanu; De, S. K.

doi:10.1016/j.jpcs.2009.12.085

Cited by 42 publications

(26 citation statements)

References 40 publications

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“…In addition, the CH2 wagging doublet at 1344 and 1360 cm -1 is an indication of crystalline phase in pure PEO. Experimental observations ascertained that by reduction in crystallinity of PEO, the intensity of these two peaks reduces and merges into one peak at 1350 cm -1 indicates the amorphous phase of PEO [32,52]. As can be seen in Figure 9-c, CH2 wagging doublet peaks merged into single peak at 1350 cm -1 in PEO/FGnP(1) sample, proposing the decrease of crystalline phase of PEO due to presence of FGnP.…”

Section: Monitoring Of Interactions Among Fgnp Peo and Liclo4mentioning

confidence: 83%

“…Figure 9-c presents the FT-IR spectra of PEO, PEO/FGnP(1), SPE and SPE/FGnP (1). Pure PEO shows the stretching triplet peak of C-O-C at 1147, 1112 and 1061 cm -1 which confirms the presence of crystalline structure [32]. In addition, the CH2 wagging doublet at 1344 and 1360 cm -1 is an indication of crystalline phase in pure PEO.…”

Section: Monitoring Of Interactions Among Fgnp Peo and Liclo4mentioning

confidence: 87%

“…It was indicated that the crystallization process of polymer chains in the presence of lithium based surfactant and nanotubes slowed down and thinner crystal lamellae were formed. Some interesting results were also reported in the nanocomposite polymer electrolytes with ceramic nanofillers [30,31], cerium oxide 6 nanoparticles [32], organoclay [33] and functionalized carbon nanotube [34] which showed that the addition of nanoparticles into polymer electrolyte caused a further reduction in the crystallinity of PEO. This study is motivated by current researches on the development of polymer electrolyte systems performance using nanomaterials.…”

Section: Introductionmentioning

confidence: 83%

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Effect of polyethylene glycol-grafted graphene on the non-isothermal crystallization kinetics of poly(ethylene oxide) and poly(ethylene oxide):lithium perchlorate electrolyte systems

Gomari

Ghasemi

Esfandeh

2016

Materials Research Bulletin

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Section: Monitoring Of Interactions Among Fgnp Peo and Liclo4mentioning

confidence: 83%

Section: Monitoring Of Interactions Among Fgnp Peo and Liclo4mentioning

confidence: 87%

Section: Introductionmentioning

confidence: 83%

See 1 more Smart Citation

Effect of polyethylene glycol-grafted graphene on the non-isothermal crystallization kinetics of poly(ethylene oxide) and poly(ethylene oxide):lithium perchlorate electrolyte systems

Gomari

Ghasemi

Esfandeh

2016

Materials Research Bulletin

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“…In addition, this could increase the suitable volume for lithium-ion transport at the polymer-Al 2 O 3 interfaces, ultimately leading to higher mobility. [29] The intensity of these peaks decreased with the addition of the ceramic fillers, indicating the reduction of crystalline plane spacing in the PEO matrix. [26][27][28] To further investigate the effects of the addition of a ceramic filler on the chemical-physical properties of the electrolyte membranes, we performed SEM, XRD, and DSC analysis.…”

Section: Resultsmentioning

confidence: 98%

Enhanced Lithium Battery with Polyethylene Oxide‐Based Electrolyte Containing Silane–Al₂O₃ Ceramic Filler

et al. 2013

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A solid polymer electrolyte prepared by using a solvent-free, scalable technique is reported. The membrane is formed by low-energy ball milling followed by hot-pressing of dry powdered polyethylene oxide polymer, LiCF3 SO3 salt, and silane-treated Al2 O3 (Al2 O3 -ST) ceramic filler. The effects of the ceramic fillers on the properties of the ionically conducting solid electrolyte membrane are characterized by using electrochemical impedance spectroscopy, XRD, differential scanning calorimeter, SEM, and galvanostatic cycling in lithium cells with a LiFePO4 cathode. We demonstrate that the membrane containing Al2 O3 -ST ceramic filler performs well in terms of ionic conductivity, thermal properties, and lithium transference number. Furthermore, we show that the lithium cells, which use the new electrolyte together with the LiFePO4 electrode, operate within 65 and 90 °C with high efficiency and long cycle life. Hence, the Al2 O3 -ST ceramic can be efficiently used as a ceramic filler to enhance the performance of solid polymer electrolytes in lithium batteries.

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“…where ΔH m represents the melting enthalpy of the sample and ΔH mp o represents the melting enthalpy of 100 % crystalline PEO = 213.1 J/g [31]. Since PPG is essentially an amorphous polymer, PEO has been considered as a homopolymer.…”

Section: Thermal Analysismentioning

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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Molecular interaction and ionic conductivity of polyethylene oxide– nanocomposites

Cited by 42 publications

References 40 publications

Effect of polyethylene glycol-grafted graphene on the non-isothermal crystallization kinetics of poly(ethylene oxide) and poly(ethylene oxide):lithium perchlorate electrolyte systems

Effect of polyethylene glycol-grafted graphene on the non-isothermal crystallization kinetics of poly(ethylene oxide) and poly(ethylene oxide):lithium perchlorate electrolyte systems

Enhanced Lithium Battery with Polyethylene Oxide‐Based Electrolyte Containing Silane–Al₂O₃ Ceramic Filler

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

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Molecular interaction and ionic conductivity of polyethylene oxide– nanocomposites

Cited by 42 publications

References 40 publications

Effect of polyethylene glycol-grafted graphene on the non-isothermal crystallization kinetics of poly(ethylene oxide) and poly(ethylene oxide):lithium perchlorate electrolyte systems

Effect of polyethylene glycol-grafted graphene on the non-isothermal crystallization kinetics of poly(ethylene oxide) and poly(ethylene oxide):lithium perchlorate electrolyte systems

Enhanced Lithium Battery with Polyethylene Oxide‐Based Electrolyte Containing Silane–Al2O3 Ceramic Filler

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

Contact Info

Product

Resources

About

Enhanced Lithium Battery with Polyethylene Oxide‐Based Electrolyte Containing Silane–Al₂O₃ Ceramic Filler