The Raman Spectroscopy Study of the Binary Eutectic System (1 – x)(LiClO4–KClO4)–xAl2O3

Abstract

The physical and chemical properties of the (0.76LiClO₄–0.24KClO₄)_eut eutectic system and its heterogeneous composites with nanosized aluminum oxide powder are investigated by Raman spectroscopy, differential scanning calorimetry, and electrochemical impedance spectroscopy at different temperatures, phase states, and Al₂O₃ concentrations. The Al₂O₃ addition increased the ionic conductivity and lowered the activation energy. It is shown by the Raman spectroscopy that the addition of aluminum oxide leads to the formation of an amorphous phase, due to the lithium perchlorate crystalline phase destruction.