COMPOSITE CATHODE MATERIAL OF LITHIUM-ION CELL BASED ON LI3V2(PO4)3 HAVING NASICON STRUCTURE, AND METHOD FOR PRODUCING SAME

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 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.