• DOI:10.1002/cssc.201000254
• Corpus ID: 12415664

Ionic liquid-based membranes as electrolytes for advanced lithium polymer batteries.

@article{Navarra2011IonicLM,
  title={Ionic liquid-based membranes as electrolytes for advanced lithium polymer batteries.},
  author={Maria Assunta Navarra and Jack Manzi and Luciano Lombardo and Stefania Panero and Bruno. Scrosati},
  journal={ChemSusChem},
  year={2011},
  volume={4 1},
  pages={
          125-30
        }
}

• M. Navarra, J. Manzi, +2 authors B. Scrosati
• Published 17 January 2011
• Materials Science, Chemistry
• ChemSusChem

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  S cm⁻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.