METHOD FOR PREPARING NICKEL-COBALT-MANGANESE COMPLEX PRECURSOR BY USING RECYCLED AMMONIA

摘要

The present invention relates to a technique for recycling waste water generated during preparation of a nickel-cobalt-manganese complex precursor, which is a cathode active material precursor for a lithium secondary battery, in which ammoniac nitrogen is separated and collected from the waste water, and then the separated ammoniac nitrogen is recycled to prepare the nickel-cobalt-manganese complex precursor.