METHOD FOR OBTAINING NANOCOMPOSITION CODES FOR LITHIUM-ION BATTERIES Russian patent published in 2017 - IPC H01M4/04 H01M4/131 H01M10/525 

FIELD: electricity.

SUBSTANCE: while implementing the method, a nanosized cathode material powder is selected based on the compound Li₂MeSiO₄, or LiMePO₄, or LiMeO₂, where Me are transition metals, they are coated with a thin film based on the Li_XMe_yO, where Me-V, Ge, Nb, Mo, La, Ta, Ti, 5-7 nm thick, then the coated powders are heat-treated at the temperature of 300-500°C for 10-12 hours, a positive electrode is made from the obtained composite material, on which an Al₂O₃ -based passivation coating is applied, using a reagent of trimethylaluminum (TMA) and water vapour, then the electrodes are heat-treated for 10-12 hours at the temperature of 180-200°C.

EFFECT: increasing the lithium-ion conductivity, resistance to the corrosive medium of electrolyte.

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