Negative electrode material wet grinding machine wet mill ultrafine grinding machine

Release time:

2024-12-10 08:36

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Vertical grinder“Cell mill”has a wide range of applications in the processing of anode materials. In the processing of artificial graphite anode materials, due to the high requirements for particle size and morphology design, the process is relatively long, and the vertical grinder plays an important role in it. The aggregates of artificial graphite are divided into three categories: coal-based, petroleum-based, and a mixture of coal and petroleum, among which coal-based needle coke, petroleum-based needle coke, and petroleum coke are widely used. High-end anodes use needle coke as raw material, while mid-to-low-end anodes use cheaper petroleum coke as raw material, with asphalt as a binder. The production of artificial graphite first undergoes a pretreatment process, where graphite raw materials and asphalt are mixed in different proportions, and then ground using a vertical grinder..

The processing flow of artificial graphite anode materials is relatively complex. The specific application of vertical grinders in the processing of artificial graphite anode materials is mainly reflected in the pretreatment and ball milling screening processes. In the pretreatment process, after mixing graphite raw materials with asphalt and grinding, it can grind raw materials with a particle size of 5 - 10mm down to 5 - 10 microns. and to the nanoscale.In the application of anthracite as anode material, vertical ultrafine grinders are also indispensable. Anthracite has the characteristics of high yield and wide availability, and it is also low-cost, making it cheaper than traditional anode materials like needle coke. Furthermore, the anode preparation process is simple and controllable, allowing for the preparation of lithium-ion battery graphite anode materials through simple processes such as coarse crushing, ultrafine grinding, and graphitization..

It plays a key role in the processing of anthracite-based anode materials. After crushing anthracite to below 1cm, it needs to be crushed to a median particle size of 16 - 18μm using a mechanical crusher, and during this process, the vertical grinder can efficiently complete the grinding task. The grinding particle size of the vertical ultrafine grinder can be adjusted freely between the micro and nano scales, making it very suitable for the front-end grinding of anthracite.

Vertical grinder“Cell mill”After fine processing by the vertical grinder, anthracite-based graphite particles are mostly spherical, which is very different from the commonly used needle coke-based graphite anodes in terms of microstructure. Cycle data shows that the cycle stability of anthracite-based graphite anodes is far superior to that of needle coke-based graphite anodes. 1cm 以下后，需要采用机械粉碎机将其粉碎至中值粒度为 16 - 18μm 的无烟煤粉体，这一过程中立式研磨机能够高效地完成粉磨任务。立式超细磨粉机粉磨粒度在微纳米之间可任意调节，非常适合无烟煤前端粉磨。经过立式研磨机的精细加工，无烟煤基石墨颗粒多呈类球形，与常用的针状焦基石墨负极在微观结构上差别很大。循环数据表明，无烟煤基石墨负极的循环稳定性远优于针状焦基石墨负极。

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