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As a representative grinding medium for the latest generation of nanobattery materials, zirconia grinding beads offer the advantages of high density, high strength, good wear resistance and long service life. They enable nanoscale ultrafine grinding and dispersion of new energy battery materials.
For cathode materials, zirconia beads are mainly used for LFP (lithium iron phosphate).
For anode materials, the main application is siliconcarbon anodes.
Since the final fineness of battery materials directly determines the selection of zirconia bead size, and there is approximately a 1000× ratio, the recommended bead sizes correspond precisely to the specific material requirements.
Equipment Requirements: Notably, pin-type sand mills are used for grinding both LFP and siliconcarbon anode materials.
Pin-type sand mills feature high linear speed and transfer high kinetic energy to the grinding zirconia beads, making them suitable for highefficiency grinding of battery materials. At the same time, they impose higher requirements on the performance of zirconia beads: excellent wear resistance and low breakage rate.
The grinding principle of zirconia beads is that the beads, driven by the sand mill, impact and shear the battery material particles to reduce particle fineness. Their applications in cathode and anode grinding each show distinct characteristics.
| Item | Specification |
|---|---|
| Product Name | Yttria Stabilized Zirconia Beads (95% YSZ) for Lithium Battery Slurry Grinding |
| Material | 95% ZrO₂ + 5% Y₂O₃ (Yttria Stabilized Zirconia, YSZ) |
| Crystal Phase | Tetragonal Zirconia (Metastable Phase) |
| Nominal Diameter | 0.1mm, 0.2mm, 0.3mm, 0.35mm, 0.5mm (Customizable for battery slurry needs) |
| Density | 6.0-6.1 g/cm³ |
| Hardness (Mohs) | ≥ 9.0 |
| Bending Strength | ≥ 1200 MPa |
| Compressive Strength | ≥ 2000 MPa |
| Wear Loss | ≤ 0.005% (per 1000 hours of grinding) |
| Max Operating Temperature | ≤ 800 ℃ (suitable for battery slurry grinding temperature: 20-60℃) |
| Chemical Inertness | Inert to lithium battery slurry (electrode materials, binders, solvents), no chemical reaction |
| Particle Size Uniformity | CV ≤ 5% (ensuring stable grinding effect) |
| Color | White (high purity, no obvious impurities) |
| Application | Nano-milling and dispersion of lithium battery positive/negative electrode slurry |
Zirconia grinding beads are widely used as a high-efficiency grinding medium for the nanoscale ultrafine grinding and dispersion of cathode materials (such as LFP) and anode materials (such as siliconcarbon anodes).
LFP (lithium iron phosphate) cathode materials typically target a fineness of < 350 nm, whereas siliconcarbon anode materials require an ultra-fine target fineness of < 100 nm.
Pin-type sand mills offer high linear speeds that transfer substantial kinetic energy to the zirconia beads, facilitating ultra-high efficiency grinding suitable for nanobattery material requirements.
Because high kinetic energy equipment subjects grinding media to intense mechanical stress, the zirconia beads must feature high density, exceptional wear resistance, high compressive strength (≥ 2000 MPa), and an extremely low breakage rate.
Yes, Yttria Stabilized Zirconia (95% YSZ) beads are completely chemically inert to electrode materials, binders, and solvents present in lithium battery slurries, preventing chemical reactions or impurity contamination.
