Ion dynamics in NaBF4 salt-complexed PVC–PEO blend polymer electrolytes: correlation between average ion hopping length and network structure

Roy, Anirban; Dutta, Biswajit; Bhattacharya, Subhratanu

doi:10.1007/s11581-017-2154-2

Cited by 14 publications

(8 citation statements)

References 33 publications

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“…By analyzing the conductivity and permittivity spectra according to the model based on electrode polarization (EP) effect, the ion conductivity, free ion concentration and ion diffusivity were evaluated individually. [34][35][36][37][38] The study revealed a strong dependency of the ion conduction ability of gel motif to the charge transport within the metallogels.…”

Section: Ion Transport Propertiesmentioning

confidence: 91%

“…On the low-frequency side, both of these permittivity spectra demonstrate space charge relaxation phenomena, which occurs due to the electrode polarization effect (shaded region in Figure 10d), similar to that observed earlier for other ionic conductors. [35][36][37][38] It has been reported earlier [36][37][38][39] that σ dc and ion diffusivity (D) can be precisely estimated from the analysis of the electrode polarization (EP) region in complex conductivity and permittivity spectra. In the impedance measurement, the gel sample under study has been kept within a pair of SS electrodes of equal area, separated by a distance 'd'.…”

Section: Ion Transport Propertiesmentioning

confidence: 99%

“…In this physical situation, the ion transport in the direction perpendicular to the electrodes can be suitably explained according to the Poisson Nernst À Planck (PNP) model. [36] In PNP model the sample-electrode interface can be modeled by a constant phase element (CPE) and the Maxwell À Wagner relaxation time t 1 ¼ e 0 e s =s dc . The impe-dance of the CPE is expressed in terms of t 1 as [36][37][38] where C dl is the frequency dependent real part of double layer capacitance formed at the sample-electrode interface.…”

Section: Ion Transport Propertiesmentioning

confidence: 99%

“…[36] In PNP model the sample-electrode interface can be modeled by a constant phase element (CPE) and the Maxwell À Wagner relaxation time t 1 ¼ e 0 e s =s dc . The impe-dance of the CPE is expressed in terms of t 1 as [36][37][38] where C dl is the frequency dependent real part of double layer capacitance formed at the sample-electrode interface. e s and e 0 are the dielectric constant of the sample and free space permittivity, respectively.…”

Section: Ion Transport Propertiesmentioning

confidence: 99%

“…Here, e s;EP and L D are the low frequency permittivity value in presence of EP and Debye length, respectively. From the EP model, [36][37][38][39] the average ion diffusivity of a symmetric ion conducting sample can be expressed as…”

Section: Ion Transport Propertiesmentioning

confidence: 99%

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Silver‐Ion‐Selective Gelation of Simple Pyridine‐Naphthalimide Conjugates with Multiple Applications: Sensing, Drug Delivery, Dye Adsorption and Ion Conductivity

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Naphthalimide‐based compounds 1–4, which show excellent gelation from semi aqueous solvents in the presence of Ag+ ions over a series of other metal ions have been synthesized. While compounds 1–3 form gel in the presence of Ag+ ion in DMF‐H2O (1 : 1, v/v), compound 4, devoid of pyridine, acts as non gelator under identical conditions. The gels reveal rock and fibrous like morphologies and show good viscoelastic response as established from rheological study. Ag‐gels of 1–3 exhibit excellent ion conduction property along with other attributes in material chemistry. Ion transport properties within the gels are analyzed by evaluating the different electrical parameters viz. ion conductivity, ion diffusivity and concentration of mobile ions at different temperatures using impedance spectroscopy. Despite identical concentration of metal ion precursor within the gels, a strong gelator‐dependent conduction property is observed. Furthermore, the Ag‐gels as soft functional materials discriminate L‐ cysteine from other amino acids and show good response in drug delivery and dye adsorption from wastewater.

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Section: Ion Transport Propertiesmentioning

confidence: 91%

Section: Ion Transport Propertiesmentioning

confidence: 99%

Section: Ion Transport Propertiesmentioning

confidence: 99%

Section: Ion Transport Propertiesmentioning

confidence: 99%

Section: Ion Transport Propertiesmentioning

confidence: 99%

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Composite electrolytes and interface designs for progressive solid‐state sodium batteries

Hou,

Zhu,

Wang

et al. 2024

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Solid‐state sodium batteries (SSSBs) are poised to replace lithium‐ion batteries as viable alternatives for energy storage systems owing to their high safety and reliability, abundance of raw material, and low costs. However, as the core constituent of SSSBs, solid‐state electrolytes (SSEs) with low ionic conductivities at room temperature (RT) and unstable interfaces with electrodes hinder the development of SSSBs. Recently, composite SSEs (CSSEs), which inherit the desirable properties of two phases, high RT ionic conductivity, and high interfacial stability, have emerged as viable alternatives; however, their governing mechanism remains unclear. In this review, we summarize the recent research progress of CSSEs, classified into inorganic–inorganic, polymer–polymer, and inorganic–polymer types, and discuss their structure–property relationship in detail. Moreover, the CSSE–electrode interface issues and effective strategies to promote intimate and stable interfaces are summarized. Finally, the trends in the design of CSSEs and CSSE–electrode interfaces are presented, along with the future development prospects of high‐performance SSSBs.

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Structural, electrical and ion transport properties of free-standing blended solid polymeric thin films

2018

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Ion dynamics in NaBF4 salt-complexed PVC–PEO blend polymer electrolytes: correlation between average ion hopping length and network structure

Cited by 14 publications

References 33 publications

Silver‐Ion‐Selective Gelation of Simple Pyridine‐Naphthalimide Conjugates with Multiple Applications: Sensing, Drug Delivery, Dye Adsorption and Ion Conductivity

Silver‐Ion‐Selective Gelation of Simple Pyridine‐Naphthalimide Conjugates with Multiple Applications: Sensing, Drug Delivery, Dye Adsorption and Ion Conductivity

Composite electrolytes and interface designs for progressive solid‐state sodium batteries

Structural, electrical and ion transport properties of free-standing blended solid polymeric thin films

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