Details
High-rate fast charging
| No. | Test Item | Unit | Specification | Measured Result | |
|---|---|---|---|---|---|
| 1 | Magnetic Substances | Fe+Cr+Ni+Zn | (ppm) | ≤0.1 | 0.06 |
| 2 | Physical Properties | Particle Size Distribution - D10 | (μm) | 5.0±1.0 | 5.42 |
| 3 | Particle Size Distribution - D50 | (μm) | 9.0±1.0 | 9.26 | |
| 4 | Particle Size Distribution - D90 | (μm) | ≤17.0 | 16.22 | |
| 5 | BET Specific Surface Area | (m²/g) | ≤1.5 | 1.38 | |
| 6 | Tap Density (TD) | (g/cm³) | ≥1.0 | 1.12 | |
| 7 | Ash Content | (%) | ≤0.1 | 0.01 | |
| 8 | Electrochemical Performance | Initial Reversible Capacity | (mAh/g) | ≥340.0 | 362.2 |
| 9 | Initial Coulombic Efficiency | (%) | ≥92.0 | 92.7 |
Particle morphology
The electrolyte used for testing is NCM electrolyte (KLD-1230C).
The range for compacting the electrode :
The electrode sheets are baked at 85°C for 4 hours, with a sealing pressure of 1300 psi.
| D50 (um) | 9.0+-1.5 |
| Tap density (g/cm3) | 1.05+-0.10 |
| D10 (um) | 5.0+-2.0 |
| BET (m2/g) | 1.40+-0.30 |
| D90 (um) | 15.5+-3.0 |
Appearance: Black powder; uniform color, free of clumps and foreign matter.
Packaging Requirements: Vacuum-sealed in aluminum-plastic film; outer packaging consists of a plastic bag.
Storage Requirements: Keep sealed; store in a cool, dry place.
Note: CC — Constant Current Charging; DC — Constant Current Discharging; CV — Constant Voltage Charging.
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