The possibility of using organic esters of phosphoric acid as a solvents for the electrolyte for lithium-ion systems and supercapacitors was investigated. Supercapacitors based on activated carbon Norit Supra and on the electrolyte being studied showed fine electrochemical performance which is comparable with standard electrolytes based on propylene carbonate. Lithium-ion batteries (Li4Ti5O12-LiNiO2 system) also showed a good performance. The conductivity of electrolytes based on tributyl phosphate was measured, as well as its thermodynamic stability was estimated.
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