Factors affecting the selection of equipment for nano grinding and dispersion of lithium iron phosphate positive and negative electrode materials:

1. Stability of nano grinding machines;

2. The selection of materials for the grinding chamber of the nano grinder can include zirconia ceramic, silicon carbide ceramic, silicon nitride ceramic as water-based slurry, as well as polyurethane inner barrels and rotors with high cost-effectiveness;

3. The particle size distribution of the selected nano grinder after grinding should be narrow, with d90 less than 300 nm;

4. The design of the selected nano grinder separator should be easy to clean and not easy to block materials;

5. The selected equipment can be used from small experiments to large-scale production.