| 摘要 |
FIELD: chemistry.SUBSTANCE: invention can be used in chemical industry. Lithium-cobalt-oxide material has composition LiCoO, where x can take values from +0.2 to -0.2, constant sum of coefficients of atom content X+Y=2.0 and represents diamagnetic matrix based on crystallites LiCoO, partially containing cations Coin octaedric oxygen coordination (Co?) in highly spin state. Highly spin cations Co?are localised in lithium positions of lithium layer in hexagonal (rhomboedric) structure of crystallites LiCoO. Fraction of lithium positions, occupied by highly-spin ions Co?, constitutes 0.1-0.2. Method of such material preparation includes mixing of lithium- and cobalt- containing precursors, humidifying precursor mixture, suspension evaporation, paste drying and further material burning. As cobalt-containing precursor used is nanodispersed Cohydroxide, containing cations in tetraedric oxygen coordination Co?. Sum of coefficients of X+Y=2.0 atom content in preserved constant in precursor mixtures.EFFECT: invention makes it possible to obtain material for catalysts, cation-exchangers, lithium-cobalt-oxide cathode materials for re-chargeable lithium-ionic accumulators, molecular magnetics, spintronics, materials for superdense recording and reading of information.6 cl, 7 dwg, 3 tbl, 1 ex |
