Method for producing lithium titanium composite oxide doped with different metal, and lithium titanium composite oxide doped with different metal produced thereby

摘要

The present invention relates to a method for producing a lithium-titanium composite oxide doped with two different kinds of metals, and a lithium-titanium composite oxide doped with two kinds of different metals produced thereby, and more specifically, two kinds The method for producing a lithium-titanium composite oxide doped with a dissimilar metal capable of adjusting the content of impurities by adjusting the mixing ratio of dissimilar metals, solid-phase mixing, pulverizing, and spray drying, and thereby The present invention relates to a manufactured lithium-titanium composite oxide doped with a different metal. In the present invention, by doping two kinds of different metals with appropriate ratios on the surface of the lithium titanium composite oxide, rutile titanium dioxide, anatase titanium dioxide, and Li2TiO3, which have been conventionally included as impurities, are doped. Titanium dioxide excellent in capacity characteristics and structural characteristics can be produced by reducing the content, and a battery including such titanium dioxide exhibits excellent battery characteristics with high initial charge / discharge efficiency and rate characteristics.