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Quaternary Polymer Electrolytes Containing an Ionic Liquid and a Ceramic Filler
Author(s) -
Sharova Varvara,
Kim GukTae,
Giffin Guinevere A.,
LexBalducci Alexandra,
Passerini Stefano
Publication year - 2016
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201600025
Subject(s) - electrolyte , ionic conductivity , materials science , ceramic , ethylene oxide , ionic liquid , glass transition , polymer , fast ion conductor , oxide , chemical engineering , electrochemistry , polymer chemistry , composite material , chemistry , organic chemistry , electrode , metallurgy , catalysis , copolymer , engineering
In this work, the individual and combined effects of an ionic liquid 1‐butyl‐1‐methylpyrrolidinium bis(trifluoromethanesulfonyl)imide and ceramic filler silicon dioxide on the thermal and electrochemical properties of poly(ethylene oxide) electrolytes have been investigated. The electrolyte containing both components has the lowest glass transition (−60 °C) and melting temperatures (27 °C), the highest conductivity at any investigated temperature, and the highest limiting current density (at 40 °C). This solid polymer electrolyte also exhibits the best long‐term cycling performance in Li/LiFePO 4 cells.