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Information × Registration Number 0221U106372, 0120U103590 , R & D reports Title Network thermodynamics as an effective tool for the study of electrode materials for high-energy Li-ion batteries and the subsequent optimization of their performance. popup.stage_title Head Shembel Olena M., Доктор хімічних наук Registration Date 02-12-2021 Organization Ukrainian State University of Chemical Technology popup.description2  Object of development - electrodes and electrolytes for high-energy lithium power sources. Parameters of intercalation/deintercalation processes of lithium cations into the solid phase of electrodes. Methods of modification of electrode materials and polymer electrolytes. The aim of the work is to increase the energy and power characteristics of the power source, to ensure the stability of the parameters during long-term cycling, to ensure operational safety, and to reduce the self-discharge during long-term storage. Structural and chemical properties of electrodes and electrolyte materials occupy is key place in the properties of power sources. Network thermodynamics in this work is the basis for the study of the diffusion of lithium ions in the solid phase of the electrode material. Research methods: X-ray spectroscopy (XRD), scanning electron microscopy, electrochemical studies: impedance spectroscopy, cycling in galvanostatic mode, and cyclic voltammeters. Modifying methods for electrolytes and electrode materials that have been used: addition of melanin, which is a natural organic material, to the storage of cathode material based on MnO2 and sulfur; pre-heat treatment of carbon materials; ionic liquids in the composition of polymeric non-aqueous electrolytes. The results obtained during the implementation of this stage of research have practical value, scientific novelty and are fundamentally important for optimizing the characteristics of high-energy lithium power sources. Field of application: C 27.20 Manufacture of batteries and accumulators. Product Description popup.authors Apostolova Raisa D. Zaderei Nelia D. Kolomoiets Olha V. Maksiuta Iryna M. Markevych Oleksandr V. Myronov Artem S. Polishchuk Yuliia V. Shembel Olena M. popup.nrat_date 2021-12-02 Close