METHOD FOR PRODUCTION OF PRECURSOR PARTICLES AND PRECURSOR PARTICLE PRODUCED BY THIS METHOD Russian patent published in 2021 - IPC H01M4/1391 

FIELD: electric elements.

SUBSTANCE: invention relates to a method for producing full-gradient precursor particles and to a full-gradient precursor particle obtained by such a method. The method consists in the fact that various anionic compositions and/or cationic compositions are adjusted by means of a gradual transition to products with other compositions, the pH is adjusted in accordance with the used substances, the particles are precipitated forming a suspension, the precipitated particles are isolated, the precipitate is treated with water and dried to obtain precursor particles. After washing and drying, the precursor particles are mixed with a lithium source, then after calcination active cathode particles are obtained. Active cathode particles can be used to produce a lithium-ion accumulator cathode.

EFFECT: improved electrochemical characteristics, reduced corrosion of processing equipment, reduced manufacturing costs.

14 cl, 12 dwg, 4 tbl, 2 ex