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Review
. 2016 Jan 11;55(2):500-13.
doi: 10.1002/anie.201504971. Epub 2015 Nov 19.

Ionic-Liquid-Based Polymer Electrolytes for Battery Applications

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Review

Ionic-Liquid-Based Polymer Electrolytes for Battery Applications

Irene Osada et al. Angew Chem Int Ed Engl. .

Abstract

The advent of solid-state polymer electrolytes for application in lithium batteries took place more than four decades ago when the ability of polyethylene oxide (PEO) to dissolve suitable lithium salts was demonstrated. Since then, many modifications of this basic system have been proposed and tested, involving the addition of conventional, carbonate-based electrolytes, low molecular weight polymers, ceramic fillers, and others. This Review focuses on ternary polymer electrolytes, that is, ion-conducting systems consisting of a polymer incorporating two salts, one bearing the lithium cation and the other introducing additional anions capable of plasticizing the polymer chains. Assessing the state of the research field of solid-state, ternary polymer electrolytes, while giving background on the whole field of polymer electrolytes, this Review is expected to stimulate new thoughts and ideas on the challenges and opportunities of lithium-metal batteries.

Keywords: energy storage; ionic liquids; lithium batteries; polymer electrolytes; solid-state electrolytes.

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