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Nanocomposite polymer electrolytes comprising PVA-graft-PEGME/TiO2 for Li-ion batteries

Published online by Cambridge University Press:  11 March 2014

Hamide Aydın Open the ORCID record for Hamide Aydın [Opens in a new window]  and
Ayhan Bozkurt
Hamide Aydın
Affiliation:
Department of Chemistry, Fatih University, 34500 Büyükçekmece-İstanbul, Turkey
Ayhan Bozkurt*
Affiliation:
Department of Chemistry, Fatih University, 34500 Büyükçekmece-İstanbul, Turkey
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

The present work investigates inorganic–organic nanocomposite polymer electrolytes (NCPEs) for lithium-ion battery applications. Nanoscale TiO2 particles were dispersed into boron comprising poly(vinyl alcohol) (PVA)-g-poly(ethylene glycol) methyl ether (PEGME) host polymer at several percentages. During preparation, nanocomposite matrices were doped with CF3SO3Li at several compositions and homogeneous soft solid materials were obtained. The interactions between host copolymer and inorganic additive and dopant were studied by Fourier transform infrared spectroscopy. The surface morphology of the NCPEs was investigated by scanning electron microscopy and their thermal properties were studied by thermogravimetric analysis and differential scanning calorimetry. The ionic conductivity of these novel NCPEs was studied by dielectric-impedance spectroscopy. High ambient temperature Li+ ion conducting (∼10−4 S/cm) NCPE matrices can be suggested for lithium battery applications.

Keywords

poly(vinyl alcohol)poly(ethylene glycol) methyl etherboric acidtitanium dioxidepolymer electrolytesLi-ion conductivity
Type
Articles
Information
Journal of Materials Research , Volume 29 , Issue 5 , 14 March 2014 , pp. 625 - 632
Copyright
Copyright © Materials Research Society 2014 

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