Ion dynamics in methylcellulose–LiBOB solid polymer electrolytes

被引：0
|
作者：
S. Z. Yusof
H. J. Woo
A. K. Arof
机构：
[1] University of Malaya,Centre for Ionics University of Malaya, Faculty of Science
来源：
Ionics | 2016年 / 22卷
关键词：
Solid polymer electrolytes; Ionic conductivity; Ion dynamics; Power law; Dielectric constant;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A polymer electrolyte system comprising methylcellulose (MC) as the host polymer and lithium bis(oxalato) borate (LiBOB) as the lithium ion source has been prepared via the solution cast technique. The electrolyte with the highest conductivity of 2.79 μS cm−1 has a composition of 75 wt% MC–25 wt% LiBOB. The mobile ion concentration (n) in this sample was estimated to be 5.70 × 1020 cm−3. A good correlation between ionic conductivity, dielectric constant, and free ion concentration has been observed. The ratio of mobile ion number density (n) at a particular temperature to the concentration n0 of free ions at T = ∞ (n/n0) and the power law exponents (s) exhibit opposite trends when varied with salt concentration.
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页码：2113 / 2121
页数：8
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