▎ 摘　　要

NOVELTY - The device has a high-speed motor (1), a stirring device (5), a mixing cylinder (2) and a high-kinetic impact ball (4). A large number of high-kinetic energy impact balls are used to replace the single-shaft or multi-shaft stirring blades in the slurry preparation device. The high-kinetic energy impact balls effectively breaks up the heterogeneous aggregates that are common in slurry (3) prepared by methods and obtain highly uniform active material slurry. The high-kinetic energy impact balls are made of high-purity zirconium material with high specific gravity and high hardness. USE - Lithium battery active material slurry stirring modification device for lithium battery used in electric automobile. ADVANTAGE - The high kinetic energy impact ball with high density of tens of thousands of impact ball instead of the local paddle stirring can fully disperse the non-uniform agglomerated pellet in the active material, preparing high-quality slurry with high uniformity, improving the product consistency of the lithium battery. The active material particles generate a lot of cracks at the moment of impact, which is good for the particles of high conductive modified substance such as graphene, carbon nano-tube and so on to penetrate into the active substance through the crack, greatly improving the conductive ability of active substance, the modification effect is better than the conventional surface coating modification technology. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a stirring and modifying device of active substance slurry. 1High-speed motor 2Mixing cylinder 3Slurry 4High energy impact ball 5Stirring device