New polymer electrolyte based on (PVA–PAN) blend for Li-ion battery applications

Angaiah, Subramania; Sundaram, N.; Kumar, G. Vijaya; Vasudevan, T.

doi:10.1007/s11581-006-0018-2

Cited by 59 publications

(27 citation statements)

References 11 publications

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“…The conductivity has been improved by 420 times when the ZnO filler was introduced into the PVC-LiClO 4 electrolyte system. The introduction of inorganic filler into the electrolyte system will make the electrolyte be more amorphous and promotes more free lithium ions from the inorganic salt of LiClO 4 to transfer into the electrolyte [10]. The increase in ionic conductivity with ZnO content is attributed to a reduction of crystallinity of composite polymer electrolyte.…”

Section: Methodsmentioning

confidence: 99%

“…These fillers promote more free lithium ions and produce more amorphous regions in the electrolyte for the transfer of charge carriers and hence improves the electrolyte conductivity. Another way of improving the conductivity of the solid polymeric electrolyte is to introduce a blend electrolyte system such as polyvinylidene fluoride (PVdF)-HFP-PAN-LiClO 4 [10], PVdF-PVC-LiBF 4 , PVdF-PVCLiClO 4 [11], PEO-PBE-LiClO 4 , PEO-PPO-LiN (CF 3 SO 2 ) 2 [12] and PEO-PEGDME-LiCF 3 SO 3 [13]. In this work, we prepared a polymer/semiconductor composite electrolyte of PVC-ZnO-LiClO 4 with ZnO as a filler.…”

Section: Introductionmentioning

confidence: 99%

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Electrical properties of a solid polymeric electrolyte of PVC–ZnO–LiClO4

Rahman

Ahmad

Wahab

2008

Ionics

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The ZnO filler has been introduced into a solid polymeric electrolyte of polyvinyl chloride (PVC)-ZnOLiClO 4 , replacing costly organic filler for conductivity improvement. Ionic conductivity of PVC-ZnO-LiClO 4 as a function of ZnO concentration and temperature has been studied. The electrolyte samples were prepared by solution casting technique. The ionic conductivity was measured using impedance spectroscopy technique. It was observed that the conductivity of the electrolyte varies with ZnO concentration and temperature. The temperature dependence on the conductivity of electrolyte was modelled by Arrhenius and Vogel-Tammann-Fulcher equations, respectively. The temperature dependence on the conductivity does not fit in both models. The highest room temperature conductivity of the electrolyte of 3.7×10 −7 Scm −1 was obtained at 20% by weight of ZnO and that without ZnO filler was found to be 8.8×10 −10 Scm −1 . The conductivity has been improved by 420 times when the ZnO filler was introduced into the PVC-LiClO 4 electrolyte system. It was also found that the glass transition temperature of the electrolyte PVCZnO-LiClO 4 is about the same as PVC-LiClO 4 . The increase in conductivity of the electrolyte with the ZnO filler was explained in terms of its surface morphology.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Electrical properties of a solid polymeric electrolyte of PVC–ZnO–LiClO4

Rahman

Ahmad

Wahab

2008

Ionics

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“…This implies that ion association likely occurred in the electrolyte system. Ion association caused the number of free ions to decrease which leads to the lower ionic conductivity values [31]. This can be explained by the fact that at extreme low salts concentrations, the salts exist in the form of isolated Li + and ClO 4 − ions.…”

Section: Thermal Analysismentioning

confidence: 99%

Temperature dependence of the conductivity of plasticized poly(vinyl chloride)-low molecular weight liquid 50% epoxidized natural rubber solid polymer electrolyte

Lee

Afiqah

Ahmad

et al. 2012

J Solid State Electrochem

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Characterizations were carried out to study on a new plasticized solid polymer electrolyte that was composed of blends of poly(vinyl chloride) (PVC), liquid 50% epoxidized natural rubber (LENR50), ethylene carbonate, and polypropylene carbonate. This freestanding solid polymer electrolyte (SPE) was successfully prepared by solution casting technique. Further analysis and characterizations were carried out by using scanning electron microscopy (SEM), X-ray diffraction, differential scanning calorimeter (DSC), Fourier transform infrared (ATR-FTIR), and impedance spectroscopy (EIS). The SEM results show that the morphologies of SPEs are compatible with good homogeneity. No agglomeration was observed. However, upon addition of salt, formation of micropores occurred. It is worth to note that micropores improve the mobility of ions in the SPE system, thus increased the ionic conductivity whereas the crystallinity analysis for SPEs indicates that the LiClO 4 salt is well complexed in the plasticized PVC-LENR50 as no sharp crystallinity peak was observed for 5-15% wt. LiClO 4 . This implies that LiClO 4 salt interacts with polymer host as more bonds are form via coordination bonding. In DSC study, it is found that the glass temperature (T g ) increased with the concentration of LiClO 4 . The lowest T g was obtained at 41.6°C when incorporated with 15% wt. LiClO 4 . The features of complexation in the electrolyte matrix were studied using ATR-FTIR at the peaks of C0O, C-O-C, and C-Cl. In EIS analysis, the highest ionic conductivity obtained was 1.20× 10 −3 S cm −1 at 15% wt. LiClO 4 at 353 K.

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“…The membrane morphology was investigated by XRD analysis. The polymer PVA is a quick dissolver and it can be easily blended with other polymers, while PVC has been chosen because of its high resistance to oxidation, heat released in burning is considerably low hence PVC membranes are suitable for safety reasons in products close to people's daily lives [7][8][9] .…”

Section: Research Articlementioning

confidence: 99%

Ionic Conductivity of PVC Based Microporous Polymer Membrane Electrolyte

Mahalle¹,

Sangawar²

2012

Chem Sci Trans

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A microporous polymer membrane based on polyvinyl chloride (PVC) was obtained by a novel polymer dissolution technique in different compositions of (PVC-PVA). The structural study of the prepared PVC microporous membrane was carried out by x-ray diffraction. TGA/DTA analysis reveals that the microporous polymer membrane is thermally stable up to 600 0 C. Ionic conductivity of polymer membrane electrolytes have been determined by impedance studies in the temperature of 303-343 K by varying the PVA content in PVC matrix. The ionic conductivity at room temperature was significantly enhanced about 5.431x10 -4 S/cm when the weight ratio of PVA was 40 wt%. Finally the effect of different lithium salt concentration was also studied for the microporous polymer electrolyte of high ionic conductivity system. A maximum ionic conductivity of 1.29x10 -3 S/cm was obtained for 3 M LiClO 4 electrolyte solution at ambient temperature.

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New polymer electrolyte based on (PVA–PAN) blend for Li-ion battery applications

Cited by 59 publications

References 11 publications

Electrical properties of a solid polymeric electrolyte of PVC–ZnO–LiClO4

Electrical properties of a solid polymeric electrolyte of PVC–ZnO–LiClO4

Temperature dependence of the conductivity of plasticized poly(vinyl chloride)-low molecular weight liquid 50% epoxidized natural rubber solid polymer electrolyte

Ionic Conductivity of PVC Based Microporous Polymer Membrane Electrolyte

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