Dual Power Centrifugal Band Mill Empowers The Grinding Of Silicon-carbon Anode Materials

In lithium-ion batteries, the anode material serves as the carrier for lithium ions and electrons during the charging process, fulfilling the function of energy storage and release, and accounts for approximately 8% of the battery's manufacturing cost. Silicon anodes, in particular, boast the highest theoretical mass-specific capacity (3,580 mAh/g at room temperature) and abundant resource reserves. They can provide channels for lithium-ion intercalation and deintercalation from all directions, exhibit a higher lithiation potential, and demonstrate excellent fast-charging performance. Additionally, they avoid the persistent dendrite issue associated with lithium metal anodes, combining both high safety and high capacity. As a result, silicon anodes are regarded as a promising next-generation anode material and have recently garnered significant attention within the industry.

From a product perspective, the technological iteration direction of silicon-carbon (Si/C) anodes primarily focuses on preventing SEI film formation and reducing expansion.

In the manufacturing process of Si/C anodes, nano-sized silicon particles must first be prepared, followed by carbon coating as the outermost layer to form a core-shell structure, which constitutes the final Si/C anode product. Currently, the mainstream production process primarily relies on sand mill grinding.

The dual-power nano sand mill innovatively decouples the dynamic separator from the traditional grinding rotor structure, enabling independent drive control for separate operation of material grinding and particle separation.

1. It can achieve stable grinding and dispersion with 0.05mm media;

2. The unique centrifugal technology prevents material blockage and bead leakage;

3. The special jacketed cooling system enables rapid cooling;

4. The grinding chamber is made of full ceramic material, ensuring contamination-free processing;

5. The automated PLC control system helps build a smart factory.

As a future anode material expected to be widely adopted, silicon-carbon composites demand even higher requirements in terms of production efficiency and precision. Typically, the grinding fineness of silicon-carbon materials needs to reach below 100nm, but production processes often encounter issues such as bead leakage and material clogging.

Yusun Intelligent Dual-Power Sand Mill features an all-ceramic grinding chamber design and an advanced screenless separation system, enabling stable use of grinding media as small as 0.05mm. With high efficiency, superior grinding performance, and a narrow particle size distribution, it effectively solves problems like bead leakage and clogging, making it an ideal solution for nanomaterial grinding.

Yusun Intelligent Dual-Power Nano Sand Mill is primarily used for high-end nanomaterials such as silicon-carbon anodes, achieving highly efficient ultra-fine grinding. It empowers high-performance production and contributes to the advancement of cutting-edge nanomaterials.