ISSN 1608-4039 (Print)
ISSN 1680-9505 (Online)

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Golubyatnikova L., Mishinkin V. Y., Garipov D. R., Kuz'mina E. V., Kolosnitsyn S. V. Physical and chemical properties of lithium perchlorate and tetrafluoroborate solutions in the mixture of sulpholane and sulfurous anhydride. Electrochemical Energetics, 2023, vol. 23, iss. 4, pp. 197-206. DOI: 10.18500/1608-4039-2023-23-4-197-206, EDN: YHKSME

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Language: 
Russian
Heading: 
Electrolytes for sources of electrochemical power
Article type: 
Article
UDC: 
544.6.018.462
DOI: 
10.18500/1608-4039-2023-23-4-197-206
EDN: 
YHKSME

Physical and chemical properties of lithium perchlorate and tetrafluoroborate solutions in the mixture of sulpholane and sulfurous anhydride

Autors: 
Golubyatnikova Ludmila,
Mishinkin Vadim Yurievich, Ufa Institute of Chemistry of the Russian Academy of Sciences
Garipov Dmitry Ruslanovich,
Kuz'mina Elena Vladimirovna, Institute of Organic Chemistry of the Ufa RAS Scientific Center
Kolosnitsyn Sergeevich Vladimir, Ufa Institute of Chemistry of the Russian Academy of Sciences
Abstract: 

The temperature dependencies of physical and chemical properties (viscosity, density, electrical conductivity) and the melting temperature of 1M solutions of lithium salts (LiClO4 and LiBF4) in the mixture of sulfolane and sulfurous anhydride (∼1M) were studied. It was shown that the introduction of 1M (5% wt.) of sulfurous anhydride into 1M solutions of LiClO4 and LiBF4 in sulfolane increased the specific and corrected electrical conductivity, densities, activation energy of electrical conductivity and viscous flow of electrolyte solutions; and reduced viscosity and melting temperatures.

Key words: 
electrolyte
sulfur dioxide
sulfolane
Electrical conductivity
density
viscosity
differential scanning calorimetry
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Received: 
17.10.2023
Accepted: 
04.12.2023
Published: 
25.12.2023