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 n 0 of free ions at T = ∞ (n/n 0) and the power law exponents (s) exhibit opposite trends when varied with salt concentration.
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Acknowledgments
Financial supports from the University of Malaya (IPPP no. PG112-2013A) and from the Ministry of Higher Education Malaysia (FRGS no. FP053-2014A) are greatly acknowledged.
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Yusof, S.Z., Woo, H.J. & Arof, A.K. Ion dynamics in methylcellulose–LiBOB solid polymer electrolytes. Ionics 22, 2113–2121 (2016). https://doi.org/10.1007/s11581-016-1733-y
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DOI: https://doi.org/10.1007/s11581-016-1733-y