In the lithium battery manufacturing chain, the performance of cathode materials directly determines the energy density, cycle life and safety performance of batteries. Due to its high energy density advantage, ternary cathode materials have become the core choice for new energy vehicle power batteries and energy storage batteries. The lithium battery ternary material mixer, as the core equipment connecting the pretreatment of ternary materials and the manufacturing of electrode sheets, its technical level and operational stability directly affect the quality consistency of lithium battery production. Efficiency and cost are indispensable key equipment in the production process of lithium batteries.

From the perspective of the production process, the ternary material mixer undertakes the core function of "material homogenization". Ternary cathode materials are composed of metal oxide powders such as nickel, cobalt, and manganese (or aluminum) in specific proportions, and need to be mixed with conductive agents, binders, and solvents to form a uniform slurry. During this process, the mixer needs to break the agglomeration of material particles through precise control of stirring parameters - including stirring speed, shearing force, mixing time, etc., to ensure that the conductive agent is evenly coated on the surface of the cathode material and the binder is fully dispersed in the system. If the materials are not mixed evenly, it will cause differences in the density of local active materials on the electrode sheets, which in turn will lead to uneven current distribution during battery charging and discharging, increase the risk of thermal runaway, and at the same time reduce the battery's cycle life and energy output stability. It is evident that it has a decisive impact on the core performance of the battery.

The high-speed mixer for lithium batteries generates local high-intensity shearing force in the material flow field through a specially designed shearing structure. When agglomerated materials pass through the shearing area, the shearing force can effectively break the agglomeration between particles and improve the performance of the materials. Meanwhile, the shearing effect can promote the uniform coating of the binder solution on the surface of the cathode material and the conductive agent, forming a stable "material - conductive agent - binder" composite system. If the shearing effect is insufficient, the residual aggregates in the material will cause uneven density of the electrode sheet after coating, and the local current will be concentrated during battery charging and discharging. This not only reduces the energy output efficiency but may also cause local overheating and increase safety risks.

The high-speed lithium battery mixer adopts the coordinated cooperation of stirring and shearing functions. Shearing and stirring are carried out simultaneously, and stirring achieves macroscopic mixing of materials. The shearing of the flying knife blades breaks and scatters the micro-aggregates, achieving deep dispersion of the materials. This collaborative mechanism avoids the problem of microscopic unevenness that a single stirring cannot solve, and also prevents local over-processing of materials caused by a single shear.

The lithium battery ternary material mixer is a key piece of equipment in the lithium battery production chain. In the future, with the deep integration of materials science and mechanical manufacturing technology, it will continue to iterate and upgrade, providing core support for the high-quality development of the new energy lithium battery industry.

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