Physicochemical properties of tetramethylammonium bis(salicylo)borate

Tetramethylammonium bis(salicylo)borate was prepared via exchange reactions in alkaline solution. The purity and structure of the samples obtained were characterized by thermal gravimetric analysis and NMR. The electrochemical stability and electrical conductivity of solutions of tetramethylammonium bis(salicylo)borate in acetonitrile and propylene carbonate were determined by cyclic voltammetry and electrochemical impedance spectroscopy. The mechanism of the electrolyte conductivity was suggested. The data on the solubility of the synthesized electrolyte in the chosen solvents confirm good prospects for using tetramethylammonium bis(salicylo)borate in aprotic solvents for the fabrication of supercapacitors.