Lithium battery high-nickel ternary positive electrode slurry and preparation method thereof

The invention discloses a lithium battery high-nickel ternary positive electrode slurry and a preparation method thereof. The positive electrode slurry is composed of a positive electrode active material, a conductive agent, an adhesive, an organic weak acid and an organic solvent. The preparation method comprises the following steps: S1, adding the positive electrode active material, the conductive agent and the adhesive into a stirrer, and uniformly performing mixing; S2, adding 50-70wt% of an organic solvent into S1, and performing stirring to obtain a coarse pulping material A; S3, addingthe residual solvent into S2, performing stirring, and performing stirring at a high speed to obtain a crude product B; S4, transferring the coarse slurry B prepared in the S3 into a ball mill, addingorganic weak acid, and carrying out ball milling to obtain ternary positive electrode slurry C. According to the preparation method, the problem that the high-nickel ternary material absorbs water toform jelly in the homogenizing process can be effectively solved, and the processability is improved; meanwhile, the preparation method can effectively shorten the preparation time of the slurry andimprove the production efficiency, and the prepared slurry is uniform in dispersion, stable in storage, beneficial to coating and easy to realize large-batch production.