LITHIUM TITANIUM OXIDE FOR A POSITIVE ELECTRODE ACTIVE MATERIAL OF A LITHIUM RECHARGEABLE BATTERY, A PREPARATION METHOD THEREOF AND A LITHIUM BATTERY USING THE SAME

摘要

PURPOSE: A lithium titanium oxide for a positive electrode active material of a lithium rechargeable battery is provided to maximize the yield of lithium titanate with little impurities and to reduce operation costs by obtaining lithium titanate at a lower reaction temperature.;CONSTITUTION: A lithium titanium oxide for a positive electrode active material of a lithium rechargeable battery has a first peak of Li4Ti5O12 peak and a second peak of TiO2 in XRD spectrum, wherein I_(TiO2)/I_(Li4Ti5O12) of the intensity(I_(Li4Ti5O12)) of the first peak and the intensity(I_(TiO2)) of the second peak is 10^(-4) or more and 10^(-1) or less. An XRD analysis condition is 5 ~ 80 °C, 0.02 °C/step and X-ray: 40 kV/20mA.;COPYRIGHT KIPO 2011