METHOD FOR PREPARING POSITIVE ELECTRODE PASTE OF LITHIUM ION BATTERY

摘要

A method for preparing a positive electrode paste for a lithium ion battery includes the following steps: a) preparing materials, including a conductive agent A, a conductive agent B, an adhesive, a solvent and a mixed positive active material which includes at least two kinds of positive active material; b) preparing a conductive colloid, wherein the adhesive and a part of the solvent are mixed and stirred so as to dissolve the adhesive completely, then the conductive agent A is added to prepare the conductive colloid; c) placing the mixed positive active material and the conductive agent B into a stirrer and stirring uniformly; d) adding the remaining solvent into the stirrer and continuing to stir; and e) adding the conductive colloid resulting from step b) into the stirrer, and continuing to stir to form the paste. The method improves the uniformity of each component of the positive active material in the paste, and the resulting paste has excellent uniformity.