Lithium battery material mixing grinder, shear grinder, shear crusher

Release time:

2025-05-27 08:48

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In the rapid technological iteration of electric vehicles and energy storage systems, lithium batteries, as the core energy source, have key performance improvements focusing on the microstructural optimization of positive and negative electrode materials. Taking silicon-based anode materials as an example, for example, because silicon undergoes significant volume expansion during charging and discharging, this easily leads to damage of the electrode structure, thus affecting the battery's cycle life. To effectively suppress this problem, the particle size of the silicon-based anode material needs to be strictly controlled at ≤1μm, by reducing the particle size, reducing the stress concentration caused by volume expansion, and maintaining the integrity of the electrode structure.

Vertical wet milling machines, with their unique vertical laminar flow structure, are widely used in the field of lithium battery material processing. Its bottom-in, top-out gravity-assisted design allows the grinding media to be evenly distributed within the grinding chamber. Ensuring that throughout the grinding process, the materials and grinding media are in full and uniform contact.

During the grinding process, the high-speed rotating stirring shaft plays a key role, the stirring shaft movement can drive the grinding media in the grinding chamber to generate a high-speed rotating vortex, material particles are fully dispersed in the liquid medium, subjected to high-frequency impact and shear. This high-intensity physical action causes the material particles to be continuously refined, ultimately obtaining nanometer-level particle size with an extremely narrow particle size distribution ， greatly enhancing the electrochemical activity of the material and laying a solid foundation for improving lithium battery performance.

In addition, the equipment's built-in ceramic lining and non-metallic sealing components fundamentally eliminate the problem of heavy metal contamination. For high-end batteries, such as those with stringent requirements for impurity content of solid-state battery cathode materials, vertical milling machines can meet their ultra-high purity production needs.

In terms of industrial design, the vertical of structural design significantly reduces the floor space 3 0%, effectively reducing the company's site costs and improving factory space utilization. ； In terms of environmental performance, the equipment uses a fully sealed negative pressure chamber, effectively preventing dust spillage and achieving zero dust emissions.

In the processing of graphite anodes process ， honeycomb mills can also be used to improve the roundness and surface smoothness of the particles. Spheroidization of the graphite surface can allow the electrolyte to contact the graphite particles more fully and evenly during wetting, effectively reducing the electrolyte wetting impedance. The lower interfacial impedance promotes the rapid transport of lithium ions between the electrolyte and the graphite anode, improving the battery's charge-discharge rate performance and meeting the fast-charging performance requirements of electric vehicles, etc.

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