Details
| Physical and chemical properties | |||||||
| Serial Number | Test items | Units | Specifications | Measured results | Inspection method or instrument | ||
| 1 | Chemical composition | Me | (wt%) | 60.0±2.0 | 60.27 | ICP | |
| 2 | Ni | (wt%) | 50.5±2.0 | 50.52 | |||
| 3 | Co | (wt%) | 6.5±1.0 | 6.49 | |||
| 4 | Mn | (wt%) | 3.2±1.0 | 3.26 | |||
| 5 | Ni | (mol%) | / | 83.0 | |||
| 6 | Co | (mol%) | / | 11.0 | |||
| 7 | Mn | (mol%) | / | 6.0 | |||
| 8 | Fe | (wt%) | ≤0.01 | 0.0008 | |||
| 9 | Cu | (wt%) | ≤0.005 | 0.0006 | |||
| 10 | Na | (wt%) | ≤0.03 | 0.0087 | |||
| 11 | Ca | (wt%) | ≤0.02 | 0.0040 | |||
| 12 | Zn | (wt%) | ≤0.005 | 0.0005 | |||
| 13 |
Free potassium |
(wt%) | ≤0.2 | 0.1296 |
Acid burette |
||
| 14 | Physical Properties | Particle size distribution | D10 | (μm) | ≥4.0 | 6.23 | Laser particle size analyzer |
| 15 | D50 | (μm) | 10.0~14.0 | 11.43 | |||
| 16 | D90 | (μm) | ≤28.0 | 20.03 | |||
| 17 | BET | (m2/g) | 0.2~0.7 | 0.52 | Automatic specific surface and porosity analyzer | ||
| 18 |
TD |
(g/cm3) | ≥2.0 | 2.41 |
Tapped density measuring instrument |
||
| 19 | pH | / | ≤12.5 | 11.81 |
pH meter |
||
| 20 | Electrochemical Performance | First discharge capacity | (mAh/g) | ≥190.0 | 200.3 | CR2032 0.1/0.1C(4.3-2.8V) |
|
| 21 | First Time Efficiency | (%) | ≥90.0 | 91.5 | |||
Packaging requirements: Inner layer sealed plastic bottle, outer layer aluminum-plastic film sealed.
Storage requirements: Sealed, store in a cool, dry place.
Material requires vacuum sealing for storage.
Material is hygroscopic; humidity must be controlled throughout the sheet preparation process.
Electrolyte used for testing: Ternary electrolyte (KLD-LP04).
Electrode baking conditions: Baking at 85℃ for 4 hours.
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