Effect of calixpyrrole in PEO–LiBF4 polymer electrolytes
2005; Elsevier BV; Volume: 50; Issue: 19 Linguagem: Inglês
10.1016/j.electacta.2005.02.067
ISSN1873-3859
AutoresM. Kalita, M. Bukat, Marcin Ciosek, Maciej Siekierski, S. H. Chung, Teddy Rodriguez, Steve Greenbaum, R. Kovarsky, Diana Golodnitsky, E. Peled, Daniela Zane, Bruno Scrosati, W. Wieczorek,
Tópico(s)Conducting polymers and applications
ResumoIt 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.
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