What is a graphite anode material grinding mill?

Lithium battery is divided into positive electrode and negative electrode. At present, artificial graphite, namely petroleum coke, is commonly used as the negative electrode material in the market. What is the grinding process of graphite anode material? What are the technical requirements for grinding graphite anode materials?

Petroleum coke is a common raw material of artificial graphite. There are many kinds of petroleum coke. It can be divided into needle coke, sponge coke, shot coke, etc. according to its shape. It can also be divided into green coke and cooked coke according to whether it is calcined. It can be divided into high sulfur coke, medium sulfur coke and low sulfur coke according to its sulfur content. The graphite anode material needs to be ground. What is the process of the graphite anode material grinding mill? Briefly summarized, including crushing, grinding, grading, transportation and collection, of which the most important is grinding and grading. The index requirements of the graphite anode material grinding mill mainly refer to the D50, D10 and D90 values. The particle size ranges from 5-25 microns. There are strict control requirements for the particle size distribution range. Because the particle size of the anode material will have an impact on the next step of the finished anode material, classification is very critical.