Effect of calixpyrrole in PEO-LiBF4 polymer electrolytes

M. Kalita, M. Bukat, M. Ciosek, M. Siekierski, S. H. Chung, T. Rodríguez, S. G. Greenbaum, R. Kovarsky, D. Golodnitsky, E. Peled, D. Zane, B. Scrosati, W. Wieczorek

Research output: Contribution to journalArticlepeer-review

Abstract

It is shown that the addition of calix[6]pyrrole to polyether based electrolytes doped with LiBF4 results in an considerable increase in the cation transport number tLi+ as confirmed by dc-ac current techniques as well as by PFG NMR studies. The value of tLi+ in composite electrolytes beyond a certain minimum value weakly depends on the concentration of added calix[6]pyrrole. The increase in lithium transference number is associated with a decrease in ionic conductivity of composite polymeric electrolytes compared to the pure PEO-LiBF4 systems.

Original languageEnglish
Pages (from-to)3942-3948
Number of pages7
JournalElectrochimica Acta
Volume50
Issue number19
DOIs
StatePublished - 30 Jun 2005

Keywords

  • Anion receptors
  • Calyx[6]pyrroles
  • Lithium transference numbers
  • Polyethers

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