Structure and ionic conductivity of ionic liquid embedded PEO- LiCF3SO3 polymer electrolyte

Karmakar, A.; Ghosh, Ayan

doi:10.1063/1.4892855

Cited by 45 publications

(29 citation statements)

References 54 publications

(53 reference statements)

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“…The observed E σ value was marked in the figure which is 0.32 eV. This E σ value of the PNC film is found of the order of E σ values of various SPEs , and because of low E σ value the investigated PNC materials can be a potential candidate as base matrix in the preparation of nanocomposite SPE materials .…”

Section: Resultsmentioning

confidence: 69%

Structural, morphological, thermal, dielectric, and electrical properties of alumina nanoparticles filled PVA–PVP blend matrix‐based polymer nanocomposites

Choudhary

2018

Polymer Composites

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Alumina (Al2O3) nanoparticles filled poly(vinyl alcohol) (PVA) and poly(vinyl pyrrolidone) (PVP) blend matrix (50/50 wt%) based polymer nanocomposite (PNC) films (i.e., [PVA–PVP]–x wt% Al2O3; x = 0, 1, 3, and 5) have been prepared by solution‐cast method. X‐ray diffraction study has confirmed that the structures of these PNC materials are predominantly amorphous. The formation of miscible blend, polymer–polymer and polymer–nanoparticle interactions, and the effect of Al2O3 nanoparticles on the thermal properties of PVA–PVP blend matrix have been examined by Fourier transform infrared, differential scanning calorimetry and scanning electron microscopy measurements of the PNC films. The dielectric and electrical spectra of these PNC films have been measured from 20 Hz to 1 MHz using dielectric relaxation spectroscopy. It has been found that the dispersion of merely 1 wt% Al2O3 nanoparticles in the PVA–PVP blend matrix significantly reduces the crystalline phase and enhance the melting phase transition temperature of the PNC material, while the dielectric permittivity greatly decrease due to nano confinement effect. The real parts of dielectric permittivity and the impedance of these PNC films decrease linearly with the increase of the frequency, whereas the ac electrical conductivity has increased. A nonlinear increase of dielectric permittivity has been found with an increase of the temperature of PNC film and its dc electrical conductivity obeys the Arrhenius behavior. The dielectric and electrical properties of these PNC materials confirm their suitability as flexible nanodielectric of frequency tunable permittivity. POLYM. COMPOS., 39:E1788–E1799, 2018. © 2018 Society of Plastics Engineers

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Section: Resultsmentioning

confidence: 69%

Structural, morphological, thermal, dielectric, and electrical properties of alumina nanoparticles filled PVA–PVP blend matrix‐based polymer nanocomposites

Choudhary

2018

Polymer Composites

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“…where A is conductivity pre-exponential factor, which is related to the number of carrier ions, E a is the activation energy, T 0 is the Vogel scaling temperature at which the free volume disappears or at which configuration free entropy becomes zero, and R is the ideal gas constant. [31,32] The calculated values of VTF fitting parameters for PVCA-SPE was shown in Figure 4a. Compared with other kinds of polymer electrolytes, [3] PVCA-SPE has a lower activation energy (0.030 eV), indicative of the low energy barrier for lithium ion transfer in PVCA-SPE.…”

Section: Electrochemical Properties Of Pvca-spementioning

confidence: 99%

In Situ Generation of Poly (Vinylene Carbonate) Based Solid Electrolyte with Interfacial Stability for LiCoO₂ Lithium Batteries

et al. 2016

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Nowadays it is extremely urgent to seek high performance solid polymer electrolyte that possesses both interfacial stability toward lithium/graphitic anodes and high voltage cathodes for high energy density solid state batteries. Inspired by the positive interfacial effect of vinylene carbonate additive on solid electrolyte interface, a novel poly (vinylene carbonate) based solid polymer electrolyte is presented via a facile in situ polymerization process in this paper. It is manifested that poly (vinylene carbonate) based solid polymer electrolyte possess a superior electrochemical stability window up to 4.5 V versus Li/Li+ and considerable ionic conductivity of 9.82 × 10−5 S cm−1 at 50 °C. Moreover, it is demonstrated that high voltage LiCoO2/Li batteries using this solid polymer electrolyte display stable charge/discharge profiles, considerable rate capability, excellent cycling performance, and decent safety characteristic. It is believed that poly (vinylene carbonate) based electrolyte can be a very promising solid polymer electrolyte candidate for high energy density lithium batteries.

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“…This was already proved for various polymer electrolyte systems such as in PEOLiTFSI, ionic liquid based polymer membranes, and so on. [53][54][55][56][57] …”

Section: Raman Spectroscopymentioning

confidence: 99%

Lithium Polymer Electrolytes Based on Sulfonated Poly(ether ether ketone) for Lithium Polymer Batteries

et al. 2015

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We studied a lithium-ion conducting polymer based on sulfonated poly(ether ether ketone) (SPEEK) doped with lithium bis(trifluoromethane)sulfonimide (LiTFSI). Self-standing membranes were prepared by the solvent-casting technique with a LiTFSI loading of 0 to 30 wt.-%. The thermogravimetric analysis curves showed that the SO 3 H groups decompose earlier in the SPEEK-LiTFSI membranes than in pure SPEEK, owing to interactions between the Li + ions and the SO 3 H groups. X-ray diffraction and differential scanning calorimetry studies showed that the addition of LiTFSI decreased the crystallinity and the glass-transition temperature

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Structure and ionic conductivity of ionic liquid embedded PEO- LiCF3SO3 polymer electrolyte

Cited by 45 publications

References 54 publications

Structural, morphological, thermal, dielectric, and electrical properties of alumina nanoparticles filled PVA–PVP blend matrix‐based polymer nanocomposites

Structural, morphological, thermal, dielectric, and electrical properties of alumina nanoparticles filled PVA–PVP blend matrix‐based polymer nanocomposites

In Situ Generation of Poly (Vinylene Carbonate) Based Solid Electrolyte with Interfacial Stability for LiCoO₂ Lithium Batteries

Lithium Polymer Electrolytes Based on Sulfonated Poly(ether ether ketone) for Lithium Polymer Batteries

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Structure and ionic conductivity of ionic liquid embedded PEO- LiCF3SO3 polymer electrolyte

Cited by 45 publications

References 54 publications

Structural, morphological, thermal, dielectric, and electrical properties of alumina nanoparticles filled PVA–PVP blend matrix‐based polymer nanocomposites

Structural, morphological, thermal, dielectric, and electrical properties of alumina nanoparticles filled PVA–PVP blend matrix‐based polymer nanocomposites

In Situ Generation of Poly (Vinylene Carbonate) Based Solid Electrolyte with Interfacial Stability for LiCoO2 Lithium Batteries

Lithium Polymer Electrolytes Based on Sulfonated Poly(ether ether ketone) for Lithium Polymer Batteries

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In Situ Generation of Poly (Vinylene Carbonate) Based Solid Electrolyte with Interfacial Stability for LiCoO₂ Lithium Batteries