Conductivity of Lithium-Conducting Nafion Membranes Plasticized by Binary and Ternary Mixtures in the Sulfolan–Ethylene Carbonate–Diglyme System

R. R. Kayumov R. R. Kayumov , L. V. Shmygleva L. V. Shmygleva , E. Yu. Evshchik E. Yu. Evshchik , E. A. Sanginov E. A. Sanginov , N. A. Popov N. A. Popov , O. V. Bushkova O. V. Bushkova , Yu. A. Dobrovolsky Yu. A. Dobrovolsky
Russian Journal of Electrochemistry
Abstract / Full Text

The electrotransport characteristics of the polymer electrolyte based on lithiated Nafion-115 membrane plasticized by high-boiling dipolar aprotic solvents—sulfolane (SL), ethylene carbonate (EC), and diglyme (G2) and also by their binary and ternary mixtures are studied in a wide temperature interval (from –60 to +80°C). The best transport properties (conductivity 10–5–10–4 S cm–1 in the interval from –20 to +70°C) are demonstrated by samples plasticized with binary mixtures EC/G2 and EC/SL in certain ratios. The ternary plasticizer provides low activation energy (10–20 kJ mol–1) and sufficiently high conductivity in the temperature region not lower than –10°C.

Author information
  • Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow oblast, Russia

    R. R. Kayumov, L. V. Shmygleva, E. Yu. Evshchik, E. A. Sanginov & Yu. A. Dobrovolsky

  • Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences, Yekaterinburg, Russia

    N. A. Popov & O. V. Bushkova

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