The project is aimed at developing new anode materials for lithium-ion batteries based on molybdenum sulfide with improved functional properties: increased specific capacity and rate of charge-discharge processes, stability of properties during long-term charge-discharge cycling. One of the important fundamental tasks of the project is to study the patterns of formation of composite electrode materials and the relationship between their composition, structure and electrochemical properties in relation to highly efficient energy storage.
The scientific novelty of the project lies in the production of electrode materials, new in composition and structure, based on molybdenum sulfide, which provide enhanced functional properties. For this, approaches will be used both for the chemical synthesis of composite materials based on molybdenum sulfide in the presence of molecular (ethylenedioxythiophene) and polymer forms (poly-3,4-ethylenedioxythiophene) and structures of reduced graphene oxide, and mechanochemical synthesis. A novelty is also a comparative study of the functional properties of materials using binder components of different nature and using traditional liquid alkyl carbonate electrolytes and gel electrolytes. The approaches used are aimed at creating a chemical environment that ensures efficient extraction of capacity and prevents the decomposition of the complex structure of materials based on molybdenum sulfide during redox cycling due to chemical interactions of functional groups in the introduced components with alkali metal ions and sulfur, as well as mechanically retaining the transfer of polysulfides.
As a result of the project, it is expected to obtain new anode materials based on molybdenum sulphide with increased specific capacity and material stability.
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