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

摘要

The present invention relates to a manufacturing method of a lithium-titaniumcomposite oxide doped with two kinds of different metals and a lithium-titaniumcomposite oxide doped with two kinds of different metals. Moreparticularly, the present invention relates to a manufacturing method of alithium-titanium composite oxide doped with different metals, solid-phasemixingafter adjusting a mixing ratio of two kinds of different metals andpulverizing thesame, and spray drying the same to adjust contents of impurities, and alithium-titaniumcomposite oxide doped with different metals manufactured therefrom.By doping two kinds of different metals on the surface of the lithium-titaniumcomposite oxide of the present invention after adjusting the ratio of the twodifferent metals to be a desirable ratio, the present invention reduces thecontents of rutile-type titanium dioxide, anatase-type titanium dioxide andLi2TiO3 which have been included as impurities in the prior arts, therebymanufacturing titanium dioxide having excellent capacity characteristics andstructural characteristics, and a battery including the titanium dioxidehavingexcellent battery characteristics of high initial charge and dischargeefficiencyand rate capability.