CHEMICAL WAY OF SYNTHESIS OF MATERIALS FOR LITHIUM-ION BATTERY Russian patent published in 2018 - IPC H01M4/36 H01M4/505 H01M4/58 C01B25/45 

FIELD: chemistry.

SUBSTANCE: composite material based on LiMnPO₄, synthesized chemically, contains (1-x) LiMn₂O₄, where x is the amount of LiMnPO₄ and varies from 0.67 mol% to 0.99 mol%. Implementation of a method for synthesizing a composite material based on LiMnPO₄ includes the following stages: provision of LiMn₂O₄ material as a precursor; leaching of Mn from LiMn₂O₄ material, using an acid to produce a synthesized solution; addition of carbonate material to the synthesized solution; addition of phosphoric acid to the synthesized solution with a carbonate material to obtain MnPO₄ composite material; and addition of a lithium-containing compound to MnPO₄ composite material to obtain a synthesized material.

EFFECT: invention relates to a technology for manufacturing materials for lithium-ion batteries.

23 cl, 5 dwg