Investigation of ionic conductivity of composite gel polymer electrolyte membranes based on P(VDF-HFP), LiClO4 and silica aerogel for lithium ion battery

Saikia, Diganta; Chen-Yang, Y. W.; Chen, Y.T.; Li, Y.K.; Lin, Shih-Ting

doi:10.1016/j.desal.2007.09.066

Cited by 92 publications

(38 citation statements)

References 17 publications

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“…The lowering of Tg is expected to make the ions move easily in the prepared polymer electrolyte systems. Similar results have been reported by Hiran Kumar et al for the PVA: CH3COONH4 polymer electrolytesystem 33 .The low glass transition temperature has been found for 20 wt% of NaF doped PAN. The calculated Tg values are listed in Table-2.These results were good agreement with conductivity values and XRD results.…”

Section: Dsc Characteristicssupporting

confidence: 89%

Ac Conductivity and Thermal Studies of Pan-Nafdoped Gel Polymer Electrolytes for Solid State Battery Applications

2017

Rasayan J Chem

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Thin film membranes of poly acrylonitrile (PAN) doped with sodium Fluoride (NaF) was prepared by solution casting technique. The Gel polymer Electrolyte films exhibiting an average thickness of 142 µm. The films were prepared with different (wt %) ratios. The structural formations were analyzed by X-Ray Diffraction method (XRD).The Conductivity Studies (AC) and thermal conductivity studies (DSC) of the different ratios of gel polymer electrolyte composites were studied. The AC conductivity studies were determined from the impedance data and thermal conductivity studies were measured using the transient electric pulse method. The AC Conductivity increases with increasing temperature and NaF Concentration. The formed fluoride complexes also contribute in increasing the AC quantities. The DSC measurements showed a decrease in the degree of crystallinity and increase of amorphous regions with increasing concentration of salt NaF. The sample containing 70PAN:30NaF exhibited the maximum conductivity of 1.82x10 -4 S cm -1 at room temperature (303K) and 2.96x10 -3 S cm -1 at 373K.

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Section: Dsc Characteristicssupporting

confidence: 89%

Ac Conductivity and Thermal Studies of Pan-Nafdoped Gel Polymer Electrolytes for Solid State Battery Applications

2017

Rasayan J Chem

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“…So, the degree of crystallization of polymer matrix decreases with addition of SiO 2 (Li ? ). The added Silicas are far more receptive to the segmental chain motion of the polymer [17]. Such an interaction stabilizes the amorphous structure and enhances the ionic conductivity of CMGPEs [18].…”

Section: Measurementsmentioning

confidence: 96%

Preparation and Characterization of Composite Microporous Gel Polymer Electrolytes Containing SiO2(Li+)

Tang

2013

J Inorg Organomet Polym

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In this paper, the single ionic conductor SiO 2 (Li ? ) was first synthesized from Tetraethylorthosilicate and c-(2,3-epoxypropoxy) propyltrimethoxysilane (KH560) by sol-gel hydrolysis and then neutralized by lithium hydroxide in methanol. The poly(vinylidene fluoride) based composite microporous gel polymer electrolytes (CMGPEs) doped with SiO 2 (Li ? ) was prepared by phase inversion method and the desirable CMGPEs was obtained after being activated in liquid electrolyte. The physicochemical properties of the CMGPEs were characterized by FT-IR, DSC, XRD, TG, stress-strain response and electrochemical measurements. It was found that with the addition of SiO 2 (Li ? ), the degree of crystallization of microporous polymer membrane was decreased while its porosity increased, which could promote the absorption and gelation of liquid electrolyte. In addition, due to vast amount of Li ? ions in the SiO 2 (Li ? ), it would promote ionic conductivity at room temperature for the CMGPEs. When the content of SiO 2 (Li ? ) reached 5 %wt, the ionic conductivity of the CMGPEs could reach 10 -2 S/cm order of magnitude at room temperature and the reciprocal temperature dependence of ionic conductivity of as-prepared CMGPEs follow arrhenius equation, in addition, its electrochemical stability window could reach 5.2 V.

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“…Aerogels are characterized by their high surface area and highly porous structure. These features have motivated the applications for supported catalysts (Hao et al, 2008;Pietron et al, 2002), lithium battery Saikia et al, 2008) and fuel cell (Guilmiot et al, 2007;Du et al, 2007aDu et al, , 2007b. Titania aerogel films have also been attracting interests as an alternative of the electrode of DSSC (Pietron et al, 2007).…”

Section: Introductionmentioning

confidence: 98%

Drying processes for preparation of titania aerogel using supercritical carbon dioxide

Shimoyama¹,

Ogata²,

Ishibashi³

et al. 2010

Chemical Engineering Research and Design

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Investigation of ionic conductivity of composite gel polymer electrolyte membranes based on P(VDF-HFP), LiClO4 and silica aerogel for lithium ion battery

Cited by 92 publications

References 17 publications

Ac Conductivity and Thermal Studies of Pan-Nafdoped Gel Polymer Electrolytes for Solid State Battery Applications

Ac Conductivity and Thermal Studies of Pan-Nafdoped Gel Polymer Electrolytes for Solid State Battery Applications

Preparation and Characterization of Composite Microporous Gel Polymer Electrolytes Containing SiO2(Li+)

Drying processes for preparation of titania aerogel using supercritical carbon dioxide

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