Synthesis of novel nanostructured composite cathode materials for lithium-ion batteries using mechanical activation

We formulate new approaches to the development of novel composite electrode materials for LIB, using the mechanical activation method (MA). MA with high-energy mechanoactivators is a modern energy- and eco-efficient method of fine grinding, mixing, and activation of solid reagents and is widely used to prepare different functional materials. As an example, we report the results of studying the synthesis conditions, structure, morphology, and electrochemical properties of the composite cathode materials prepared by different procedures:(1) joint MA of two individual cathode materials (LiCoO2/LiMn2O4 composites); (2) direct mechanochemically assisted solid state synthesis starting from a multicomponent mixture of reagents (LiFePO4/Li3V2(PO4)3 composites); (3) synthesis via heat-induced partial decomposition of a single-phase nanosized cathode material, prepared by MA, with the elimination of a gaseous by-product and the formation of the second electrochemically active component (LiVPO4F/Li3V2(PO4)3 composites)