Impedance spectroscopy of carbon nanotube/solid polymer electrolyte composites

被引：15

作者：

Ibrahim, Suriani ^{[1
]}

Yasin, Siti Mariah Mohd ^{[1
]}

Ng, Meng Nee ^{[1
]}

Ahmad, Roslina ^{[1
]}

Johan, Mohd Rafie ^{[1
]}

机构：

[1] Univ Malaya, Adv Mat Res Lab, Dept Mech Engn, Fac Engn, Kuala Lumpur 50603, Malaysia

来源：

SOLID STATE COMMUNICATIONS | 2011年 / 151卷 / 23期

关键词：

Nanostructures; Thin films; Chemical synthesis; Scanning and transmission electron microscopy; IONIC-CONDUCTIVITY; SALT; TRANSPORT; PLASTICIZER; ENHANCEMENT; BATTERIES; FTIR; PEG;

D O I：

10.1016/j.ssc.2011.08.015

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

New composite polymer electrolytes (CPE) have been prepared by a solution-casting technique, using polyethylene oxide, lithium hexafluorate (LiPF6) as the doping salt, ethylene carbonate (EC) as the plasticizer and amorphous carbon nanotubes (alpha CNTs) as the filler. The crystallinity and ionic conductivity of the CPE are examined. Differential scanning calorimetry shows a decrease in melting temperature and crystallinity upon the addition of LiPF6, EC and alpha CNTs to the polymer electrolyte system. The addition of salt increases the conductivity up to 10(-5) S cm(-1). The incorporation of EC and alpha CNTs into the salted polymer shows a significant conductivity increase of 10(-4) and 10(-3) S cm(-1). The complexation process is examined using Fourier transform infrared spectroscopy. The Vogel-Tamman-Fulcher (VTF) plots suggest that the temperature dependence of conductivity is a thermally activated process. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1828 / 1832

页数：5

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