Gel-type polymer electrolytes are formed by immobilizing a solution of lithium N,N-bis(trifluoromethanesulfonyl)imide (LiTFSI) in N-n-butyl-N-ethylpyrrolidinium N,N-bis(trifluoromethanesulfonyl) imide (Py24TFSI) ionic liquid (IL) with added mixtures of organic solvents, such as ethylene, propylene and dimethyl carbonates (EC, PC, and DMC, respectively), into a poly(vinylidenefluoride-co-hexafluoropropylene) (PVdF-HFP) matrix, and their properties investigated. The addition of the organic solvent mixtures results in an improvement of the ionic conductivity and in the stabilization of the interface with the lithium electrode. Conductivity values in the range of 10-3 - 10-2 Scm-1 are obtained in a wide temperature range. These unique properties allow the effective use of these membranes as electrolytes for the development of advanced polymer batteries based on a lithium metal anode and an olivine-type lithium iron phosphate cathode.

Ionic Liquid-based membranes as electrolyte for advanced lithium batteries / Navarra, MARIA ASSUNTA; Manzi, J; Lombardo, Lucia; Panero, Stefania; Scrosati, Bruno. - In: CHEMSUSCHEM. - ISSN 1864-5631. - STAMPA. - 4:(2011), pp. 125-130. [10.1002/cssc.201000254]

Ionic Liquid-based membranes as electrolyte for advanced lithium batteries

NAVARRA, MARIA ASSUNTA;LOMBARDO, LUCIA;PANERO, Stefania;SCROSATI, Bruno
2011

Abstract

Gel-type polymer electrolytes are formed by immobilizing a solution of lithium N,N-bis(trifluoromethanesulfonyl)imide (LiTFSI) in N-n-butyl-N-ethylpyrrolidinium N,N-bis(trifluoromethanesulfonyl) imide (Py24TFSI) ionic liquid (IL) with added mixtures of organic solvents, such as ethylene, propylene and dimethyl carbonates (EC, PC, and DMC, respectively), into a poly(vinylidenefluoride-co-hexafluoropropylene) (PVdF-HFP) matrix, and their properties investigated. The addition of the organic solvent mixtures results in an improvement of the ionic conductivity and in the stabilization of the interface with the lithium electrode. Conductivity values in the range of 10-3 - 10-2 Scm-1 are obtained in a wide temperature range. These unique properties allow the effective use of these membranes as electrolytes for the development of advanced polymer batteries based on a lithium metal anode and an olivine-type lithium iron phosphate cathode.
2011
lithium batteries; ionic liquids; polymer membranes
01 Pubblicazione su rivista::01a Articolo in rivista
Ionic Liquid-based membranes as electrolyte for advanced lithium batteries / Navarra, MARIA ASSUNTA; Manzi, J; Lombardo, Lucia; Panero, Stefania; Scrosati, Bruno. - In: CHEMSUSCHEM. - ISSN 1864-5631. - STAMPA. - 4:(2011), pp. 125-130. [10.1002/cssc.201000254]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/339421
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