title: Quaternary Polymer Electrolytes Containing an Ionic Liquid and a Ceramic Filler.
abstract: 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/LiFePO4 cells.
authors.affiliation: Helmholtz Institute Ulm (HIU), Helmholtzstr. 11, Ulm, 89077, Germany.|Karlsruhe Institute of Technology (KIT), PO Box 3640, 76021, Karlsruhe, Germany.
authors.forename: Varvara
authors.initials: V
authors.lastname: Sharova
authors.affiliation: Helmholtz Institute Ulm (HIU), Helmholtzstr. 11, Ulm, 89077, Germany.|Karlsruhe Institute of Technology (KIT), PO Box 3640, 76021, Karlsruhe, Germany.
authors.forename: Guk-Tae
authors.initials: GT
authors.lastname: Kim
authors.affiliation: Helmholtz Institute Ulm (HIU), Helmholtzstr. 11, Ulm, 89077, Germany.|Karlsruhe Institute of Technology (KIT), PO Box 3640, 76021, Karlsruhe, Germany.
authors.forename: Guinevere A
authors.initials: GA
authors.lastname: Giffin
authors.affiliation: Helmholtz Institute Ulm (HIU), Helmholtzstr. 11, Ulm, 89077, Germany.|Karlsruhe Institute of Technology (KIT), PO Box 3640, 76021, Karlsruhe, Germany.
authors.forename: Alexandra
authors.initials: A
authors.lastname: Lex-Balducci
authors.affiliation: Helmholtz Institute Ulm (HIU), Helmholtzstr. 11, Ulm, 89077, Germany.|Karlsruhe Institute of Technology (KIT), PO Box 3640, 76021, Karlsruhe, Germany.
authors.forename: Stefano
authors.initials: S
authors.lastname: Passerini
mesh_terms: D004553:Electric Conductivity; D055664:Electrochemical Techniques; D004573:Electrolytes / Q000737:chemistry; D052578:Ionic Liquids / Q000737:chemistry*; D011092:Polyethylene Glycols / Q000737:chemistry*; D012822:Silicon Dioxide / Q000737:chemistry*; D013696:Temperature
chemical_list: D004573:Electrolytes; D052578:Ionic Liquids; D011092:Polyethylene Glycols; D012822:Silicon Dioxide
keywords: ceramic fillers; electrochemistry; ionic liquids; lithium polymer batteries; polyethers