MANUFACTURING METHOD OF LITHIUM-TITANIUM COMPOSITE DOPED BY DIFFERENT METAL AND LITHIUM-TITANIUM COMPOSITE DOPED WITH DIFFERENT METAL MADE BY SAME

摘要

The present invention relates to a method for producing a lithium-titanium composite oxide doped with two dissimilar metals, and a lithium-titanium composite oxide doped with two dissimilar metals prepared thereby, and more particularly, The present invention relates to a method of preparing a lithium-titanium composite oxide doped with a dissimilar metal capable of adjusting the content of impurities by solid-phase mixing, pulverization and spray drying, and a lithium-titanium composite oxide doped with the dissimilar metal. The present invention reduces the content of rutile titanium dioxide, anatase phase titanium dioxide, and Li ₂ TiO ₃ , which were conventionally included as impurities, by adjusting and doping the two dissimilar metals on the surface of the lithium titanium composite oxide in appropriate proportions, It is possible to produce titanium dioxide having excellent characteristics, and such a battery containing titanium dioxide exhibits excellent battery characteristics with high initial charging / discharging efficiency and rate characteristics.