Journal
ELECTROCHIMICA ACTA
Volume 86, Issue -, Pages 330-338Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2012.03.084
Keywords
Polymer electrolyte; PEO; LiTFSI; Ionic liquid; Lithium coordination
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Funding
- European Commission within the Project LABOHR (FP7-GC-ELECTROCHEMICAL-STORAGE) [265971]
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Different compositions of a ternary solid polymer electrolyte (SPE) system consisting solely of poly(ethylene oxide), lithium bis(trifluoromethansulfonyl)imide (LiTFSI) and the ionic liquid N-methyl-N-butyl-pyrrolidinium bis(trifluoromethane-sulfonyl)imide (Pyr(14)TFSI) were tested. Differential scanning calorimetry shows that a few ternary polymer electrolytes with selected salt and ionic liquid contents are amorphous at room temperature. The Li+ coordination in the ternary electrolytes was analyzed by Raman spectroscopy while the Li+ transport properties were investigated by means of pulsed-field-gradient NMR (PFG-NMR), impedance spectroscopy and DC methods. (c) 2012 Elsevier Ltd. All rights reserved.
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