High power and excellent cyclelife LiMn2O4 Battery Cathode Material for electric vehicle battery cells
Specification :
| Test Item | Unit | Control standards | Typical value | ||
|
Chemical Parameter |
Li | Wt% | 4.2±0.2 | 4.2 | |
| Mn | Wt% | 57.5±2.0 | 55.8 | ||
| Li/Mn | 0.59±0.02 | 0.60 | |||
|
Impurity |
Na | ppm | ≤3000 | 2182 | |
| K | ppm | ≤300 | 142 | ||
| Ca | ppm | ≤350 | 280 | ||
| Fe | ppm | ≤60 | 55 | ||
| Ni | ppm | ≤50 | 6 | ||
| Cu | ppm | ≤20 | 4 | ||
| Physical Performance | Particle size distribution | D10 | µm | ≥2.0 | 3.2 |
| D50 | µm | 10.018.0 | 15.1 | ||
| D90 | µm | ≤40.0 | 34.3 | ||
| specific surface area | m2/g | 0.501.20 | 0.91 | ||
| pH | 8.011.0 | 9.60 | |||
| Moisture | Wt% | ≤0.100 | 0.043 | ||
| Tap density | g/cm3 | ≥1.60 | 1.71 | ||
| Compact density | g/cm3 | ≥2.80 | 2.86 | ||
| Electrochemical performance |
Initial discharge capacity (vs.Li, 0.2C) |
mAh/g | ≥105.0 | 108.3 | |
| Initial charge-discharge efficiency | % | ≥93 | 95 | ||
| Capacity retention ration after 1500 cycles (RT) | % | ≥80 | 83 | ||
| Capacity retention ration after 400 cycles (55) | % | ≥80 | 80.5 | ||
Characteristics:
Types: SM1
Name: Lithium Manganese Oxide
Appearance: Black powder, no agglomeration
Compact density is more than 3.6g/cm3
Cycle life is around 1500 times at room temperature, capacity retention ration after 400 cycles at high temperature is more than 80%.
Good consistency and stability, superior safety performance, and good storage performance at high temperature.
Applications:
Suitable for electric bicycle battery, electric vehicle battery and energy storage etc.
