A Method Of Preparing An Active Material Precursor Whereby Particle Size And Particle Size Distribution Can Be Controlled

摘要

The present invention relates to a method for producing an active material precursor capable of controlling a particle size and particle size distribution. The method of the present invention comprises: (a) producing a plurality of active material precursor slurries each including active material precursors having different average particle sizes (D50); (b) producing a mixed slurry by mixing the plurality of active material precursor slurries; and (c) filtering and cleaning the mixed slurry. According to the present invention, an active material precursor having particle size distribution such as bimodal or tri-modal can be produced, the productivity of an active material precursor production process can be improved, and the manufacturing cost can be reduced.