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Highly conductive, ionic liquid-based polymer electrolytes

TitleHighly conductive, ionic liquid-based polymer electrolytes
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2017
AuthorsSimonetti, E., Carewska M., Maresca G., De Francesco M., and Appetecchi Giovanni Battista
JournalJournal of the Electrochemical Society
KeywordsBis(fluorosulfonyl)imide, Conducting membrane, Electrolytes, Impedance spectroscopy, Ion conduction, Ionic liquids, Polyelectrolytes, Polyethylene oxides, Polymer electrolyte, Polymers, Polymethyl methacrylates, Solid electrolytes, Solid polymers, Solvent-free procedures, Storage periods

In this manuscript is reported a thermal and impedance spectroscopy investigation carried out on quaternary polymer electrolytes, to be addressed as separators for lithium solid polymer batteries, containing large amount of the N-methyl-N-propylpyrrolidinium bis(fluorosulfonyl)imide ionic liquid. The target is the development of Li+ conducting membranes with enhanced ion transport even below room temperature. Polyethylene oxide and polymethyl methacrylate were selected as the polymeric hosts. A fully dry, solvent-free procedure was followed for the preparation of the polymer electrolytes, which were seen to be self-consistent and handled even upon prolonged storage periods (more than 1 year). Appealing ionic conductivities were observed especially for the PEO electrolytes, i.e., 1.6 × 10 -3 and 1.5 × 10 -4 S cm -1 were reached at 20 and -20°C, respectively, which are ones the best, if not the best ion conduction, never detected for polymer electrolytes. © The Author(s) 2016. Published by ECS.


cited By 20

Citation KeySimonetti2017A6213