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Information × Registration Number 0218U000080, 0116U003563 , R & D reports Title Gіbrid elektrohіmіchnі capacitors on the basis nanoporous carbon and lithium spіnel popup.stage_title Head Budzulyak Ivan Mychaylovych, Registration Date 16-01-2018 Organization Vasyl Stefanyk Precarpathian National University popup.description2 The connection of the conditions of synthesis, structure, morphology and conductivity of Li-Mn-Fe-O systems of different phase composition and their electrochemical characteristics when used as a Faraday electrode of hybrid electrochemical systems is investigated. The influence of temperature activation on the surface condition and the adsorption capacity of nanoporous carbon are established. The main attention is focused on the establishment of conditions for the synthesis and concentration of components of iron-containing complex lithiated manganese oxides, at which a structure is formed that can provide the maximum intensity of lithium diffusion during the discharge of the capacitor. It has been shown that increasing the pH of the reaction medium from 4 to 8 leads to the formation of materials with more phases. The behavior of obtained modified electrode materials in a number of solutions of electrolytes was studied. It was shown that samples with the highest content of the spinel phase, in which the iron occupies the octahedral positions in the crystalline lattice, have the highest specific capacity. On the basis of the received active materials of the Faraday electrode and activated carbon molds of hybrid supercapacitors were formed and tested in different charge / discharge currents (0.5 C-20 C) in sulfate, nitrate and lithium carbonate. It is shown that the efficiency of cycling of capacitors is maintained during 500 cycles of operation regardless of the applied discharge current. Product Description popup.authors Морушко О.В. Рачій Б.І. Федорів В.Д. Хемій О.М. Яблонь Л.С. popup.nrat_date 2020-04-02 Close