Details
Lithium ion battery cathode electrode, Ni, Co, Mn NCM material, high nickel, single crystal structure, high gram capacity.
Physical and chemical properties
| Serial Number | Test items | Units | Specifications | Measured results | Inspection method or instrument | ||
| 1 | Chemical composition | Li | (wt%) | 7.0±2.0 | 7.36 | ICP | |
| 2 | Ni | (mol%) | 90.0±0.5 | 90.36 | |||
| 3 | Co | (mol%) | 5.0±0.5 | 4.62 | |||
| 4 | Mn | (mol%) | 5.0±0.5 | 5.02 | |||
| 5 | Fe | (ppm) | ≤6.0 | 2.1 | |||
| 6 | Na | (ppm) | ≤60.0 | 29.6 | |||
| 7 | Ca | (ppm) | ≤50.0 | 25.7 | |||
| 8 | MI | (ppb) | ≤60.0 | 32.4 | |||
| 11 | Physical Properties | Particle size distribution | D10 | (μm) | ≥1.0 | 1.365 | Laser particle size analyzer |
| 12 | D50 | (μm) | 3.0~5.0 | 3.641 | |||
| 13 | D90 | (μm) | ≤15.0 | 6.454 | |||
| 14 | BET | (m2/g) | ≤2.0 | 0.95 | Automatic specific surface and porosity analyzer | ||
| 15 | TD | （g/cm3） | ≤6.0 | 1.36 |
Vibrating density measuring instrument |
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| 16 | pH | / | ≤12.5 | 11.85 |
pH meter |
||
| 17 | Moisture | (ppm) | ≤600.0 | 287.0 | Moisture Analyzer | ||
| 18 | Electrochemical Performance | First discharge capacity | (mAh/g) | ≥200.0 | 215.5 | CR2032 0.1/0.1C(4.3-3.0V) |
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| 19 | First Time Efficiency | (%) | ≥87.0 | 87.9 | |||
Half battery test
CC rate charging, CV constant voltage charging, DC rate discharging
Packaging requirements: Sealed with vacuum aluminum-plastic film, outer layer packed in plastic bags.
Storage requirements: Sealed, stored in a cool and dry place.
The material needs to be vacuum sealed for storage.
The material is prone to water absorption, and humidity control is required throughout the entire production process.
The electrolyte used during testing is NCM electrolyte (KLD-1230C).
Baking conditions for electrode: Bake at 85 ℃ for 4 hours.
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