Solid composite polymer electrolytes with high cation transference number

Hadar Mazor, Diana Golodnitsky*, Yuri Rosenberg, Emanuel Peled, Wladek Wieczorek, Bruno Scrosati

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


This work presents the electrochemical and structural study of the dual modified composite LiBOB-based polymer electrolyte. Modification has been carried out by calix[6]pyrrole (CP) anion trap and nanosize silica filler. The main advantage of the use of LiBOB salt is the high ionic conductivity at near-ambient temperatures and low solid-electrolyte interphase (SEI) resistance. The conductivity of LiBOB:PEO20:CP0.125 with SiO 2 is slightly lower than 10-5 Scm-1 at 30 °C, a value higher by about two orders of magnitude than that of the semi-crystalline LiCF3,SO3, (LiTf)-PEO system. At 75 to 90 °C the bulk ionic conductivity of modified LiBOB polymer electrolyte approaches 1 mScm-1. The transference number of dual-modified LiBOB-polymer electrolyte is about 0.8 at 75 °C. Cyclic voltammetry tests showed a wide electrochemical stability window of the composite polymer electrolyte. The peak power of Li/MoOxSy cell with the polymer electrolyte film containing CP and SiO2 reaches 2.2 mW/cm2 and 3.0 mW/cm-2 at 90 and 110 °C, respectively.

Original languageEnglish
Pages (from-to)259-268
Number of pages10
JournalIsrael Journal of Chemistry
Issue number3-4
StatePublished - 2008


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