5N (99.999%), high pure aluminum micro nano powder, mainly used for lithium battery protective film, electronic ceramic components, aluminum acid lanthanum, sapphire crystal, integrated circuit and power electronic device substrate, resin filling material, high heat conducting plate filling material aspects.
| Micro-nano alumina powder for lithium ion battery ceramic coating | |||||
| Items | Compositions | ||||
| AL203-03 | AL203-035 | AL203-04 | AL203-045 | ||
| α α crystal form, % ≥ | 96 | 96 | 96 | 96 | |
| Primary particle size,µm ≤ | 0.4 | 0.4 | 0.4 | 0.4 | |
| Particle size distribution, % | particle size (D10),≤ | 0.3 | 0.3 | 0.3 | 10 |
| particle size( D50),≤ | 1.0 | 1.0 | 1.0 | 50 | |
| particle size( D90),≤ | 2.0 | 2.0 | 2.0 | 90 | |
| Apparent density, g/cm3 ~0.40 | 0.25~0.40 | 0.25~0.40 | 0.25~0.40 | 0.25~0.40 | |
| Tap density g/cm3 | 0.55~0.90 | 0.55~0.90 | 0.55~0.90 | 0.55~0.90 | |
| True density g/cm3 | 3.96 | 3.96 | 3.96 | 3.96 | |
| (BET) Specifi c surface area m2/g | 4~8 | 4~8 | 4~8 | 4~8 | |
| PH PH value | 6~8 | 6~8 | 6~8 | 6~8 | |
| Content of impurities ( ×10-4), % ≤ | Na | 800 | 300 | 25 | 20 |
| Mg | 20 | 20 | 3 | 2 | |
| Ca | 20 | 20 | 3 | 2 | |
| K | 10 | 10 | 1 | 1 | |
| Si | 50 | 40 | 20 | 15 | |
| Fe | 35 | 30 | 5 | 4 | |
| Zn | 5 | 5 | 1 | 1 | |
| Mn | 5 | 5 | 1 | 1 | |
| Content of key impurities ,≤ | 1000ppm | 500ppm | 50ppm | ≤50×10-4% | |