Abstract: Provided is a manufacturing method of a lithium-titanium composite oxide doped with different metals, solid-phase mixing after adjusting a mixing ratio of two kinds of different metals and pulverizing the same, and spray drying the same to adjust contents of impurities, and a lithium-titanium composite oxide doped with different metals manufactured therefrom. By doping two kinds of different metals on the surface of the lithium-titanium composite oxide after adjusting the ratio of the two different metals to be a desirable ratio, the contents of rutile-type titanium dioxide, anatase-type titanium dioxide and Li2TiO3 which have been included as impurities are reduced, thereby manufacturing titanium dioxide having excellent capacity characteristics and structural characteristics, and a battery including the titanium dioxide having excellent battery characteristics of high initial charge and discharge efficiency and rate capability.

Abstract: The present invention relates to a lithium-manganese composite oxide in which the size of the face angle (vertical angle) of a primary particle is adjusted, and a method for preparing the same. The lithium-manganese composite oxide in which the size of the vertical angle of the primary particle is adjusted, and the method for preparing the same according to the present invention may gently adjust the size of the vertical angle of the polygon that constitutes a primary particle having a shape of a convex polyhedron in the lithium-manganese composite oxide, thus preventing the formation of convex-concave portions at the surface of an electrode plate in the process of forming the electrode plate by means of rolling during the manufacturing of a battery, thereby having an effect of improving characteristics of the battery.

Abstract: The present invention relates to a lithium manganese composite oxide and a method for preparing the same, and more particularly, to a lithium manganese composite oxide and a method for preparing same, in which a wet-milling process and a spray-drying process are applied, and the abundance ratio of Mn3+ ions to Mn4+ ions at the surface of the composite oxide is adjusted by controlling an oxidizing atmosphere during heat treatment.

Abstract: The present invention relates to a lithium manganese composite oxide and a method for preparing the same, and more particularly, to a lithium manganese composite oxide and a method for preparing same, in which a wet-milling process and a spray-drying process are applied, and the abundance ratio of Mn3+ ions to Mn4+ ions at the surface of the composite oxide is adjusted by controlling an oxidizing atmosphere during heat treatment.