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Abstract <p>The physicochemical properties of 1.0 M lithium perchlorate solutions in mixtures of sulfolane with methyl, ethyl, and butyl acetates are studied; it is found that the introduction of alkyl acetates leads to a decrease in the viscosity of the electrolyte solutions and an expansion of the temperature range of the liquid-phase state. The specific ionic conductivity isotherms (30°C) of 1.0 M lithium perchlorate solutions in sulfolane–alkyl acetate mixtures exhibit maxima, the position of which is determined by the molecular weight of the alkyl acetate. The electrochemical stability window of 1.0 M LiClO<sub>4</sub> solutions in sulfolane–alkyl acetate mixtures is 5.7–5.8 V vs. Li/Li<sup>+</sup>.</p>

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Physicochemical Properties of Lithium Perchlorate Solutions in Sulfolane–Alkyl Acetate Mixtures

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  • 发表日期：

    2025年7月6日

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  • L. V. Sheina,
  • E. V. Kuz’mina,
  • E. V. Karaseva,
  • V. S. Kolosnitsyn

摘要

Abstract

The physicochemical properties of 1.0 M lithium perchlorate solutions in mixtures of sulfolane with methyl, ethyl, and butyl acetates are studied; it is found that the introduction of alkyl acetates leads to a decrease in the viscosity of the electrolyte solutions and an expansion of the temperature range of the liquid-phase state. The specific ionic conductivity isotherms (30°C) of 1.0 M lithium perchlorate solutions in sulfolane–alkyl acetate mixtures exhibit maxima, the position of which is determined by the molecular weight of the alkyl acetate. The electrochemical stability window of 1.0 M LiClO4 solutions in sulfolane–alkyl acetate mixtures is 5.7–5.8 V vs. Li/Li+.