Ion dynamics in methylcellulose–LiBOB solid polymer electrolytes

Yusof, S.Z. and Woo, H.J. and Arof, Abdul Kariem (2016) Ion dynamics in methylcellulose–LiBOB solid polymer electrolytes. Ionics, 22 (11). pp. 2113-2121. ISSN 0947-7047

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Official URL: http://dx.doi.org/10.1007/s11581-016-1733-y

Abstract

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.

Item Type: Article
Uncontrolled Keywords: Solid polymer electrolytes; Ionic conductivity; Ion dynamics; Power law; Dielectric constant
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Dept of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 08 Sep 2017 10:46
Last Modified: 05 Oct 2018 01:24
URI: http://eprints.um.edu.my/id/eprint/17780

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