Russian Journal of Applied Chemistry

, Volume 89, Issue 1, pp 56–62 | Cite as

Effect of concentration and temperature factors on operation stability of Li–S n –LiN(CF3SO2)2 electrochemical system

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Abstract

The results of the electrochemical study of the Li–S n system in the electrolytes consisted of LiN(CF3SO2)2 and tetraethylene glycol dimethyl ether in relation to the LiN(CF3SO2)2 concentration, temperature, and storage conditions are presented. The optimal concentrations of the salt component in salt-solvates were determined. These concentrations make it possible to obtain high stable values of the specific capacity in cycling and charge storage at room and elevated temperatures. It was shown that the operation stability of the electrochemical system Li–S n –LiN(CF3SO2)2 in salt-solvate solutions depends on solubility of the formed lithium disulfide, ratio composition of electrolyte and temperature.

Keywords

Electrochemical System Lithium Salt Sulfur Electrode Reversible Redox Reaction Polyester Chain 

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Copyright information

© Pleiades Publishing, Ltd. 2016

Authors and Affiliations

  1. 1.Interagency Department of Electrochemical Power EngineeringNational Academy of Sciences of UkraineKievUkraine

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