METHOD FOR PRODUCING A LITHIUM-ION BATTERY COMPOSITE CATHODE MATERIAL BASED ON LI3V2(PO4)3 WITH A NASICON STRUCTURE

摘要

The invention relates to chemical technology and is used for producing cathode materials having a NASICON structure for lithium autonomous energy systems (hybrid transportation, electric vehicles, energy storage buffer systems etc.). The method involves mixing a lithium salt (Li₂CO₃), vanadium oxide (V₂O₅), and ammonium dihydrogen phosphate (NH₄H₂PO₄) in a stoichiometric ratio and using starch (C₆H₁₀O₅)n as a reducing agent and a carbon component precursor. The particles of the mixture are ground in a ball mill in an acetone medium, and subsequently thermally treated at a temperature of 750-850ºC. The invention allows for producing a composite material having high indicators of specific capacitance and power and also having an acceptable cycling stability.