Modification in the transport and morphological properties of solid polymer electrolyte system by low-energy ion irradiation

Manjunatha, H.C.; Damle, R.; Kumar, Pravin; Kumaraswamy, G. N.

doi:10.1007/s11581-018-2518-2

Cited by 18 publications

(12 citation statements)

References 57 publications

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“…The XRD patterns of the electrolytes ( x = 100 to 8) did not depict the strongest reflection peaks of the DST at 2θ of 24.5, 27.7, and 28.3° indicating complete salt dissociation by the PEO. This is similar to those observed earlier for a number of PEO x ‐NaX electrolytes . These electrolytes exhibited ionic transference number close to unity .…”

Section: Resultssupporting

confidence: 90%

“…This, therefore, offers segmental motion only, which results in a poor electrical conductivity, ~10 −10 S cm −1 at 25 °C . It has already been shown that the PEO‐ionic salt complexation is an easy way to reduce the PEO crystallinity, thereby to improve the electrical conductivity . This is also visible in the σ 25 °C — x curve of the PEO x ‐DST electrolyte.…”

Section: Resultsmentioning

confidence: 97%

“…It is prepared by sandwiching a Na + ion conducting solid electrolyte between anode and cathode materials. Till now, a number of PEO x ‐NaX electrolytes have been investigated, where NaX stands for an inorganic salt . In this study, we have used the synthesized organic salt, DST (C 6 H 4 [COONa] 2 ) providing an organic anion with two Na + ions per molecule.…”

Section: Resultsmentioning

confidence: 99%

“…In the past, a number of Na + ion conducting PEO x ‐NaX polymer electrolytes has been investigated, where NaX is an inorganic salt and X stands for an anion such as I, SCN, Br, ClO 4 , NO 3 , PF 6 , PO 3 , BF 4 , YF 4 , CF 3 SO 3 , (CF 3 SO 2 ) 2 N, and (FSO 2 ) 2 N . The abbreviation, PEO corresponds to a high‐molecular‐weight poly(ethylene oxide) and x is the [O]/[Na + ] molar ratio.…”

Section: Introductionmentioning

confidence: 99%

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Utilization of poly(ethylene terephthalate) waste for preparing disodium terephthalate and its application in a solid polymer electrolyte

Haq

Shakeel

Alanazi

et al. 2019

J of Applied Polymer Sci

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A widespread application and nonbiodegradability of the poly(ethylene terephthalate) (PET) have created a huge amount of waste, which is imposing a serious life-threatening environmental problem. In this study, we have utilized the PET waste to synthesize disodium terephthalate (DST), an organic salt having two Na + ions per molecule. The purity of the DST phase was confirmed by Fourier transform infrared spectroscopy, X-ray diffractometry (XRD), and thermogravimetric analysis (TGA). A new poly(ethylene oxide)-DST polymer electrolyte was synthesized for utilizing Na + ions of the DST. The electrical conductivity of the electrolyte was optimized by varying the [O]/[Na + ] mole ratio with temperature and the results were explained using the XRD and differential scanning calorimetry studies. The TGA study showed that the electrolyte is thermally stable up to 200 C.

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Section: Resultssupporting

confidence: 90%

Section: Resultsmentioning

confidence: 97%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Utilization of poly(ethylene terephthalate) waste for preparing disodium terephthalate and its application in a solid polymer electrolyte

Haq

Shakeel

Alanazi

et al. 2019

J of Applied Polymer Sci

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show abstract

“…The slightly higher E σ value as compared to E τ value reveals that more energy is needed for the ions to crossover the potential barrier during the conduction as compared to that of the relaxation in these SPE materials. Further, the observed E σ and E τ values of these SPE films are also found in good agreement with earlier reported values for different SPE, NSPE and PSPE materials [19,21,31,37,44,45,48,50,52,56].…”

Section: Arrhenius Behavioursupporting

confidence: 92%

Effectively improved ionic conductivity of montmorillonite clay nanoplatelets incorporated nanocomposite solid polymer electrolytes for lithium ion-conducting devices

2018

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Synergistic effects of lithium salt concentration and inorganic nanofiller incorporation on the ionic conductivity of polymer blend matrix based nanocomposite solid polymer electrolytes (NSPEs) have been examined. The montmorillonite (MMT) clay nanoplatelets incorporated NSPE films based on poly(ethylene oxide) and poly(methyl methacrylate) blend matrix with lithium tetrafluoroborate (LiBF 4) ionic salt have been prepared by the solution-cast method followed by melt-press technique. The 1, 3, and 5 wt% MMT amounts along with 13.3 wt% LiBF 4 amount as compared to the weight of polymer blend have been used for the preparation of NSPE films. X-ray diffractometer (XRD) and the Fourier transform infrared (FTIR) spectrometer have been employed for structural characterization of these NSPE films. The complex permittivity and ac electrical conductivity spectra are investigated by using the dielectric relaxation spectroscopy, whereas the electrochemical performance of these materials has been characterized by the electrochemical analyzer. The XRD patterns reveal that the NSPEs are predominantly amorphous and have the intercalated and exfoliated MMT platelets, whereas the relative changes in their FTIR spectra confirm the ion-dipolar-nanofiller interactions between the functional groups of the blended polymers, lithium ions, and the MMT nanoplatelets. The permittivity and conductivity spectra of these materials are analyzed for exploring the dominant contribution of electrode polarization and dipolar polarization in the low and high frequency regions, respectively, and the presence of relaxation processes associated with structural dynamics of the solid-state ion-dipolar complexes. It has been found that the NSPE of relatively fast polymer chain segmental dynamics exhibits higher ionic conductivity. The room temperature ionic conductivity of the 13.3 wt% LiBF 4 containing SPE is found more than two times higher as compared to that of the SPE film having 9.7 wt% LiBF 4. When the MMT is incorporated, the ionic conductivity of 13.3 wt% LiBF 4 containing NSPEs enhances by about one order of magnitude at room temperature. The dc ionic conductivity of the 13.3 wt% LiBF 4 containing SPE film is found 1 × 10-5 S/ cm at 55 °C, whereas it is 1.65 × 10-5 S/cm at 27 °C for the 5 wt% MMT incorporated NSPE film. The significantly enhanced ionic conductivity with ions transference number close to unity, high electrochemical stability voltage window and good reversibility of these NSPE materials confirm their potential applications as ion conductor/separator for the development of all-solid-state ion conducting devices and the lithium-ion batteries.

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Modification of polymer electrolyte blend PEO/PVDF–HFP by low-energy O+ ion irradiation to improve electrolyte behavior

2021

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Modification in the transport and morphological properties of solid polymer electrolyte system by low-energy ion irradiation

Cited by 18 publications

References 57 publications

Utilization of poly(ethylene terephthalate) waste for preparing disodium terephthalate and its application in a solid polymer electrolyte

Utilization of poly(ethylene terephthalate) waste for preparing disodium terephthalate and its application in a solid polymer electrolyte

Effectively improved ionic conductivity of montmorillonite clay nanoplatelets incorporated nanocomposite solid polymer electrolytes for lithium ion-conducting devices

Modification of polymer electrolyte blend PEO/PVDF–HFP by low-energy O+ ion irradiation to improve electrolyte behavior

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