Ionic conductivity and transport properties of poly(vinylidene fluoride-co-hexafluoropropylene)-based solid polymer electrolytes

Abreha, Merhawi; Subrahmanyam, A.R.; Kumar, J. Siva

doi:10.1016/j.cplett.2016.06.065

Cited by 49 publications

(24 citation statements)

References 36 publications

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“…The shifting and the change in intensity of the peaks are clear indications the formation of charge transfer complexes between KMnO 4 salt and the BC molecules. A similar effect has also been reported in the research on the structural and optical characterization of PVA: KMnO 4 ‐based SPE, there are some similar works in the literature for different SPE systems that confirm our results …”

Section: Resultssupporting

confidence: 92%

Design of an optical sensor for ethylene based on nanofiber bacterial cellulose film and its application for determination of banana storage time

Pirsa

Chavoshizadeh

2018

Polymers for Advanced Techs

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In this work, new ethylene gas sensor was developed on the basis of portable bacterial cellulose (BC) nanofiber film doped with KMnO 4 (K-BC). The relationship between the concentration of KMnO 4 (8 × 10 −3 , 8 × 10 −4 , and 8 × 10 −5 mol L −1 ) and the optical and morphological properties of ethylene sensor was investigated. The Fourier-transform infrared results showed that some new interactions have occurred between BC membrane and KMnO 4 . The significant reduction in the relative intensity of the characteristic X-ray diffraction peak of BC in the doped films clearly indicates that the crystalline fraction decreases as a result of KMnO 4 addition. The fabricated K-BC was used for determination of ethylene concentration. The color, clarity, and absorbance of film at different concentrations of ethylene (10-2000 μg mL −1 ) were determined by spectrophotometer. Moisture absorption and water vapor permeability of BC were increased by the addition of KMnO 4 . Finally, the ethylene optical sensor was used for detection and determination of ethylene concentration in the bunch banana packages.

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Section: Resultssupporting

confidence: 92%

Design of an optical sensor for ethylene based on nanofiber bacterial cellulose film and its application for determination of banana storage time

Pirsa

Chavoshizadeh

2018

Polymers for Advanced Techs

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“…These changes indicate a lower crystallinity in the polymer with VANS when compared with the pure polymer film (baseline). 38,39 The absence of the endothermic peak at 56°C, which is related to the crystal phase transition from ferroelectric to paraelectric phase in the PVDF copolymer (known as the Curie temperature 40 ), corroborates the finding that the presence of the ANTs inhibits the polymer molecular relaxation during the copolymer phase transition. 41 The crystallinity values calculated through the DSC curves from the baseline and the VANS are 22.9% and 15.8%, respectively.…”

Section: Electrochemical Performancesupporting

confidence: 68%

“…In a similar approach, pure P(VDF-HFP) membranes were synthesized on bare silicon wafers based on a solution casting method. 39 The P(VDF-HFP) and P(VDF-HFP)/ ANT composites were then annealed at 100°C for 2 hours to fully remove solvent traces and peeled off from the substrate. 1 M tetraethylammonium tetrafluoroborate/propylene carbonate was infiltrated into P(VDF-HFP) or P(VDF-HFP)/ANT as the solid electrolyte.…”

Section: Electrochemical Measurementsmentioning

confidence: 99%

Multifunctional nanocomposite structural separators for energy storage

et al. 2019

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“…The Fourier Transform infrared spectroscopy (FTIR) was used to identify the characteristic bands of salt and polymer, as well as interaction between them, as presented in Figure 2 b. The characteristic peaks at 761 and 1402 cm −1 are assigned to α‐phase crystal of PVDF‐HFP, while the bands at 876 and 835 cm −1 are the amorphous phase [45] . The vibrations bands at 1072, 1171 cm −1 correspond to symmetrical stretching of CF 2 , which are shifted after LiTFSI mixing, implying the interaction between PVDF‐HFP matrix and LiTFSI [46] .…”

Section: Resultsmentioning

confidence: 99%

“…The characteristic peaks at 761 and 1402 cm À1 are assigned to a-phase crystal of PVDF-HFP, while the bands at 876 and 835 cm À1 are the amorphous phase. [45] The vibrations bands at 1072, 1171 cm À1 correspond to symmetrical stretching of CF 2 , which are shifted after LiTFSI mixing, implying the interaction between PVDF-HFP matrix and LiTFSI. [46] Raman spectroscopy was used to further reveal intensified cation/anion interactions as salt concentration increases.…”

Section: Resultsmentioning

confidence: 99%

Designing Polymer‐in‐Salt Electrolyte and Fully Infiltrated 3D Electrode for Integrated Solid‐State Lithium Batteries

Liu

et al. 2021

Angewandte Chemie

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Solid-state lithium batteries (SSLBs) are promising owing to enhanced safety and high energy density but plagued by the relatively low ionic conductivity of solid-state electrolytes and large electrolyte-electrode interfacial resistance. Herein, we design a poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP)-based polymer-in-salt solid electrolyte (PISSE) with high room-temperature ionic conductivity (1.24 10 À4 S cm À1 ) and construct a model integrated TiO 2 /Li SSLB with 3D fully infiltration of solid electrolyte. With forming aggregated ion clusters, unique ionic channels are generated in the PISSE, providing much faster Li + transport than common polymer electrolytes. The integrated device achieves maximized interfacial contact and electrochemical and mechanical stability, with performance close to liquid electrolyte. A pouch cell made of 2 SSLB units in series shows high voltage plateau (3.7 V) and volumetric energy density comparable to many commercial thin-film batteries.

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Ionic conductivity and transport properties of poly(vinylidene fluoride-co-hexafluoropropylene)-based solid polymer electrolytes

Cited by 49 publications

References 36 publications

Design of an optical sensor for ethylene based on nanofiber bacterial cellulose film and its application for determination of banana storage time

Design of an optical sensor for ethylene based on nanofiber bacterial cellulose film and its application for determination of banana storage time

Multifunctional nanocomposite structural separators for energy storage

Designing Polymer‐in‐Salt Electrolyte and Fully Infiltrated 3D Electrode for Integrated Solid‐State Lithium Batteries

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