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Updated: Jan 21, 2026

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
Published on: December 20, 2016
Free ion diffusivity and charge concentration on cross-linked polymeric ionic liquid iongel films based on sulfonated
David Valverde1, Abel Garcia-Bernabé, Andreu Andrio
1Dpto. Química Inorgánica y Orgánica, Universidad Jaume I, Avda. Sos, Baynat s/n, Castellon 12071, Spain. cepeda@uji.es.
Abstract:
The properties of various mixtures of a zwitterionic ionic liquid (ZIs-1) and LiNTf2, including their conductivity, have been studied showing how they can be adjusted through their molar composition. Conductivity tends to increase with the LiNTf2 content although it presents a minimum at the region close to the eutectic point. These mixtures also provide excellent features as liquid phases for the preparation of composite materials based on crosslinked PILs. The prepared films display excellent and tuneable properties as conducting materials, with conductivities that can be higher than 10-2 S cm-1 above 100 °C. The selected polymeric compositions show very good mechanical properties and thermal stability, even for low crosslinking degrees, along with a suitable flexibility and good transparency. The final properties of the films correlate with the composition of the monomeric mixture used and with that of the ZIs-1:LiNTf2 mixture.
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