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B. K. Ostafiychuk, N. Ya. Ivanichok, B. I. Rachiy, M. I. Kolkovskyi, R. P. Lisovskiy, R. V. Ilnitsky
«Energy Characteristics of Hybrid Electrochemical Systems of the C/Li\(_2\)SO\(_4\)/Li\(_{1.2}\)Mn\(_{1.8}\)O\(_4\) Type»
1031–1039 (2020)

PACS numbers: 68.43.Mn, 81.05.Rm, 82.45.Fk, 82.45.Gj, 82.45.Yz, 82.47.Uv, 82.47.Wx

Potentiodynamic and galvanostatic investigations of hybrid electrochemical capacitor (HEC) models formed on the base of nanoporous carbon material (NCM) are performed. NCM is obtained from raw materials of plant origin (hemp fire) and modified lithiumľmanganese spinel Li\(_{1.2}\)Mn\(_{1.8}\)O\(_4\). The influence of the surface morphology of carbon material on the electric capacity of the HEC is revealed. The total electric capacitance of the HEC models is determined, and its distribution is carried out on the capacitance, which is ensured by the formation of a double electric layer (DEL), and the redox capacitance due to the passage of Faraday reverse reactions.

Keywords: nanoporous carbon, hybrid electrochemical capacitor, aqueous electrolyte, capacity, electrochemical properties
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