Item | Stand | Test result | Test method or instrument | ||
Appearance | Black powder | Black powder | visual inspection | ||
Specific area (m2/g) | 0.250±0.050 | 0.211 | BET | ||
Tap density (g/cm3) | ≥2.800 | 3.282 | Tap density meter | ||
Chemical composition(%) | Co | 59.00~61.00 | 59.78 | Complexometric titration | |
Fe | ≤0.0150 | 0.0025 | ICP | ||
Na | ≤0.0200 | 0.0064 | |||
Cu | ≤0.0200 | 0.0005 | |||
Ca | ≤0.0200 | 0.0020 | |||
Ni | ≤0.0300 | 0.0015 | |||
Moisture (%) | ≤0.10 | 0.08 | Infrared moisture meter | ||
PH | ≤11.00 | 10.67 | DHS PH meter | ||
Particle size distribution | D10 | ≥5.500 | 7.116 | Melvin laser granulometer | |
D50 | 9.500~11.000 | 10.982 | |||
D90 | ≤20.000 | 16.663 | |||
Buckle electrical data(mAh/g) | 1C(3.0V~4.3V vs.Li) | ≥151.00 | 153.61 | Buckle electrical test line |
A: We are factory.
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to
quantity.
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.