期刊
AIP ADVANCES
卷 5, 期 7, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4927768
关键词
-
资金
- BRNS-DAE, Mumbai
- DST, New Delhi, India
- UGC-New Delhi, India
Preparation and characterization of polymer electrolyte films of PEO+10wt.% LiPF6+xwt.% BMIMPF6 (1-butyl-3-methylimidazolium hexafluorophosphate) containing dopant salt lithium hexafluorophosphate (LiPF6) and ionic liquid (BMIMPF6) having common anion PF6- are reported. The ionic conductivity of the polymer electrolyte films has been found to increase with increasing concentration of BMIMPF6 in PEO+10 wt.% LiPF6 due to the plasticization effect of ionic liquid. DSC and XRD results show that the crystallinity of polymer electrolyte decreases with BMIMPF6 concentration which, in turn, is responsible for the increase in ionic conductivity. FTIR spectroscopic study shows the complexation of salt and/or ionic liquid cations with the polymer backbone. Ion dynamics behavior of PEO+LiPF6 as well as PEO+LiPF6+BMIMPF6 polymer electrolytes was studied by frequency dependent conductivity, sigma(f) measurements. The values sigma(f) at various temperatures have been analyzed in terms of Jonscher power law (JPL) and scaled with respect to frequency which shows universal power law characteristics at all temperatures. (C) 2015 Author(s).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据