Our country has certain measurement standards for zirconia beads, which are specifically reflected in surface structure, internal structure, wear, surface roundness, that is, sphericity. Now the development speed of new energy industry has been faster and faster, and beads with better quality have been adopted.
1. Look at the surface structure
The surface structure is related to its forming process and polishing. A good bead surface structure can achieve the effect of specular reflection, and can effectively reduce the wear of zirconium beads and sand mill equipment in the grinding process. The rough surface structure will increase the wear of the ball and aggravate the wear of the equipment.
2. Look at the internal structure
Its internal structure is related to the forming process of zirconium beads. A good internal structure is dense and uniform, which can effectively reduce its wear in the grinding process and greatly reduce the possibility of broken beads. The layered, porous and cracked internal structure will break the beads into the materials and increase the wear of the equipment barrel. At the same time, if the internal structure is defective, the grinding loss will be greatly increased.
3. Look at the wear
What can reflect its quality is the actual wear test. Each batch of products must pass the quality test.
4. Look at the surface roundness
Roundness and particle size distribution are closely related to the process of sorting and screening. Good beads have good roundness and reasonable particle size distribution.
Application standard of zirconia beads in new energy:
New energy lithium batteries are mainly positive and negative materials, diaphragm materials and conductive agents, which need to be ground by zirconium bead process.
Lithium iron phosphate: Zeno zirconium bead particle size: 0.3mm, 0.4-0.6mm, 0.8-1.0mm; fineness of final material: D50: 0.3-0.5um
Silicon carbon negative electrode: Zeno zirconium bead particle size 0.1mm, 0.2mm, 0.3mm, final material grinding to fineness: D50: 50-80nm
Diaphragm alumina: Zeno zirconium bead, particle size 0.3mm, 0.6-0.8mm, final material grinding to fineness: D50: 0.6-0.8um
Conductive agent Carbon nanotubes: Zeno zirconium beads, particle size 0.9-1.1mm, 5mm, CNT D50: 0.6-0.8um
