| abstract |
The present invention relates to a method for producing a positive electrode active material for a lithium secondary battery comprising granulated particles having both composition uniformity and good coatability, a positive electrode active material for a lithium secondary battery, and the use thereof An object of the present invention is to provide a non-aqueous lithium secondary battery. The present invention relates to a method for producing a positive electrode active material for a lithium secondary battery mainly composed of Mn, Ni, Co and Li, wherein Li has an atomic ratio of 0.6 to other elements. The raw material powder which mixed the raw material powder contained in the ratio of -1.1, calcined the mixed raw material powder, and then calcined so that it might become the ratio of 0.1-0.4 by atomic ratio with respect to another element. For lithium secondary batteries in which Li is added to the powder, the raw material powder additionally mixed with Li is wet pulverized, secondary particles are granulated with the wet pulverized raw material powder, and then the secondary particles are fired. It is a manufacturing method of a positive electrode active material. [Selection] Figure 1 |