On the origin of conductivity enhancement in polymer-ceramic composite electrolytes

Kumar, Binod; Scanlon, L. G.; Spry, R. J.

doi:10.1016/s0378-7753(00)00665-0

Cited by 99 publications

(62 citation statements)

References 6 publications

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“…In order to enhance the performance of SPE in electrochemical utilities, several modifications are explored such as incorporation of nano-and inorganic fillers [1][2][3][4][5][6][7][8][9][10][11][12][13], and plasticizers [14][15][16], etc., in polymer electrolytes. The major issue in these modifications is focused on improving ion conductivity, which promises simultaneous mechanical properties and stable electrode/electrolyte interface.…”

Section: Introductionmentioning

confidence: 99%

Ionic conduction behavior in PVC–PEG blend polymer electrolytes upon the addition of TiO2

Rajendran

Babu

Devi

2008

Ionics

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The blend-based polymer electrolyte consisting of poly (vinyl chloride) (PVC) and poly (ethylene glycol) (PEG) as host polymers and lithium perchlorate (LiClO 4 ) as the complexing salt was studied. An attempt was made to investigate the effect of TiO 2 concentration in the unplasticized PVC-PEG polymer electrolyte system. The XRD and FTIR studies confirm the formation of a polymer-salt complex. The conductivity results indicate that the incorporation of ceramic filler up to a certain concentration (15 wt.%) increases the ionic conductivity and upon further addition the conductivity decreases. The maximum ionic conductivity 0.012×10 −4 S cm −1 is obtained for PVC-PEG-LiClO 4 -TiO 2 (75-25-5-15) system. Thermal stability of the polymer electrolyte is ascertained from TG/DTA studies.

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Section: Introductionmentioning

confidence: 99%

Ionic conduction behavior in PVC–PEG blend polymer electrolytes upon the addition of TiO2

Rajendran

Babu

Devi

2008

Ionics

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“…Various approaches such as copolymerization, plasticization, composite formation etc. have been proposed to overcome this challenge and each one has its own strength and weakness [13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Effect of plasticizer on microstructure and electrical properties of a sodium ion conducting composite polymer electrolyte

Pradhan

Samantaray

Choudhary

et al. 2005

Ionics

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Abstract.A plasticized composite polymer electrolyte (PCPE) based on Poly (ethylene oxide) + NaI with Na2SiO3 as the ceramics filler and Poly (ethylene glycol) as the plasticizer has been prepared by solution cast technique. Effect of plasticization on microstrucutre and electrical properties of the materials has been investigated. The changes in the structural and microstructural properties of the material have been investigated by XRD and SEM studies. The electrical conductivity estimated using a. c. impedance spectroscopy was found to be dependent on plasticizer concentration. An enhancement in the ionic conductivity value by three times has been recorded on addition of plasticizer when compared with that of unplasticized composite polymer electrolyte. The temperature dependence of conductivity of the polymer films is found to obey the Arrhenius behavior below and above the melting temperature of PEO. The electrical transport has been found to be a thermally activated process with ions being the predominant charge carrier.

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“…One of the important findings of Gozdz and Tarascon was that the addition of highly dispersed silica to the PVdF-HFP matrix significantly enhances the solvent absorption ability, thus leading to a considerable increase in the measured conductivities. The positive effect of various ceramic particles (also Al 2 O 3 , TiO 2 , and others) on the conductivities of dry polymer electrolytes is also well-documented in the literature [18][19][20][21][22][23]. The key factors responsible for the performance of these ceramic additives are believed to be particle size and surface chemistry.…”

Section: Introductionmentioning

confidence: 87%

Precipitated silica as filler for polymer electrolyte based on poly(acrylonitrile)/sulfolane

Kurc

2014

J Solid State Electrochem

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The aim of the present work was to perform a preliminary study of the physicochemical properties of hybrid organic-inorganic gel electrolytes for Li-ion batteries based on the PAN/TMS -poly(acrylonitrile)/sulfolane -polymeric matrix and surface-modified precipitated silicas. Modifications were done by means of the so-called dry method using silane U-511 3-methacryloxypropyltrimetoxysilane. Scanning electron microscopy (SEM), noninvasive back scattering method (NIBS), specific surface area (BET), the degree of modification of the silica fillers-Fourier-transform infrared spectroscopy (FT-IR), impedance analysis, and charging/ discharging were carried out. It is found that the silica fillers were homogeneously dispersed in the polymeric matrix, which enhanced conductivity and electrochemical stability of porous polymer electrolytes. Applicability of the prepared gel electrolytes for the Li-ion technology was estimated on the basis of specific conductivity measurements. It was shown that modification of the silica surface by the silane causes an increase in the gel-specific conductivity by about 2 orders of magnitude as compared to gel with unmodified silica.

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On the origin of conductivity enhancement in polymer-ceramic composite electrolytes

Cited by 99 publications

References 6 publications

Ionic conduction behavior in PVC–PEG blend polymer electrolytes upon the addition of TiO2

Ionic conduction behavior in PVC–PEG blend polymer electrolytes upon the addition of TiO2

Effect of plasticizer on microstructure and electrical properties of a sodium ion conducting composite polymer electrolyte

Precipitated silica as filler for polymer electrolyte based on poly(acrylonitrile)/sulfolane

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