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Cathode material for lithium‑ion batteries, polycrystalline NCM92, uncoated material.
Physicochemical Properties
| No. | Category | Test Item | Unit | Specification | Actual Result | Test Method / Instrument |
|---|---|---|---|---|---|---|
| 1 | Chemical Composition | Li | % | 7.4 ± 1.0 | 7.37 | ICP |
| 2 | Chemical Composition | Ni | % | 56.0 ± 1.0 | 55.76 | ICP |
| 3 | Chemical Composition | Co | % | 3.5 ± 1.0 | 3.60 | ICP |
| 4 | Chemical Composition | Mn | % | 0.5 ± 1.0 | 0.54 | ICP |
| 5 | Chemical Composition | Fe | % | ≤ 0.01 | 0.0001 | ICP |
| 6 | Chemical Composition | Cu | % | ≤ 0.01 | 0.0000 | ICP |
| 7 | Chemical Composition | Na | % | ≤ 0.03 | 0.0242 | ICP |
| 8 | Chemical Composition | Zn | % | ≤ 0.01 | 0.0000 | ICP |
| 9 | Chemical Composition | Mg | % | ≤ 0.01 | 0.0012 | ICP |
| 10 | Chemical Composition | Ca | % | ≤ 0.01 | 0.0006 | ICP |
| 11 | Physical Properties / Particle Size Distribution | D10 | μm | ≥ 5.0 | 6.94 | Laser Particle Size Analyzer |
| 12 | Physical Properties / Particle Size Distribution | D50 | μm | 7.0–11.0 | 9.38 | Laser Particle Size Analyzer |
| 13 | Physical Properties / Particle Size Distribution | D90 | μm | ≤ 15.0 | 12.62 | Laser Particle Size Analyzer |
| 14 | Physical Properties | BET Specific Surface Area | m²/g | 0.3 ± 0.2 | 0.27 | Fully Automatic Specific Surface Area and Pore Size Analyzer |
| 15 | Physical Properties | Tap Density (TD) | g/cm³ | 2.5 ± 0.2 | 2.50 | Tap Density Tester |
| 16 | Physical Properties | pH | / | 12.2 ± 0.2 | 12.17 | pH Meter |
| 17 | Physical Properties | Moisture Content | ppm | ≤ 500 | 259.0 | Moisture Analyzer |
| 18 | Electrochemical Performance | Initial Discharge Capacity | mAh/g | ≥ 200.0 | 216.2 | CR2032, 0.1C/0.1C (4.3–2.8 V) |
| 19 | Electrochemical Performance | Initial Coulombic Efficiency | % | ≥ 88.0 | 89.0 | CR2032, 0.1C/0.1C (4.3–2.8 V) |
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