FIELD: chemistry.
SUBSTANCE: invention relates to chemical technology for obtaining cathode materials for lithium-ion batteries. In method for obtaining lithium-iron-phosphate, which includes mixing iron compound with water solution, containing lithium- and phosphate ions and ascorbic acid as carbon-containing reducing agent, in stoichiometric ratio, activation of obtained mixture and further thermal processing of interaction product, as iron compound, used is iron oxide powder with degree of iron oxidation in the range +2.03…+2.2 with particle size to 125 mcm, by mixing it with water solution of lithium dihydrophosphate with concentration 30-57 wt %, with activation of obtained mixture being realised by mechanical mixing at temperature 15-30°C until gel formation.
EFFECT: invention results in elaboration of simple, fast and cheaper method for obtaining highly disperse composite cathode materials based on lithium-iron-phosphates with high specific output of product from reaction volume unit.
11 ex
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