Ionic Conductivity of Composite Solid Electrolytes (C4H9)4NBF4–Al2O3

A. S. Ulihin, N. F. Uvarov

Research output: Contribution to journalArticlepeer-review

Abstract

Composite solid electrolytes (C4H9)4NBF4–Al2O3 are synthesized in a wide range of composition. Their thermal, structural, and conducting properties are studied. The conductivity of the composites passes through a maximum at x ~ 0.9 and reaches 7.2 × 10–4 S/cm at 150°C for the 0.1(C4H9)4NBF4–0.9Al2O3 composite. The absence of thermal effect at the melting temperature of the ionic salt and the absence of peaks of tetrabutylammonium tetrafluoroborate in the diffraction pattern for a composite, which exhibits a high ionic conductivity, indicate that at x ≥ 0.9, (C4H9)4NBF4 is in the amorphous state, and ionic transfer occurs along the ionic salt/oxide interface.

Original languageEnglish
Pages (from-to)1015-1018
Number of pages4
JournalRussian Journal of Electrochemistry
Volume57
Issue number10
DOIs
Publication statusPublished - Oct 2021

Keywords

  • composite solid electrolytes
  • ionic conductivity
  • tetrabutylammonium tetrafluoroborate

OECD FOS+WOS

  • 1.04 CHEMICAL SCIENCES
  • 1.04.HQ ELECTROCHEMISTRY

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