Introduce the characteristics of the supplied nano lithium iron phosphate product, stipulate the inspection items, technical standards, test methods and test equipment of this material, as a customer's reference to material selection, and the basis for determining product technical agreements and quality standards with customers
Basic product characteristics and test conditions
| Item | Units | Specifications | Test methods | |
| Exterior | / | Gray-black powder, Color is uniform, No hard agglomeration exists | Visual | |
| Bulk density | g/cm3 | ≥0.30 | BT-303 Tap Density Analyzer | |
| Tap Density | g/cm3 | ≥0.80 | ||
| SSA | m2/g | 10.0±1.5 | Miromeritics TriStar II 3020 nalyzer | |
| The first Discharge Capacity | mAh/g | ≥150.0 | Half cell, 0.1C | |
| The first Charge Capacity | mAh/g | ≥154.0 | ||
| The first Discharge Efficiency | % | ≥95 | ||
Particle size distribution | μm | D10 | ≥0.35 | Malvern 2000 |
| μm | D50 | 0.6~1.8 | ||
| μm | D90 | ≤4.50 | ||
| μm | D97 | ≤7.50 | ||
Main components | % | C | 1.0~1.5 | ICP,Carbon and Sulfide Analyzer, etc. |
| % | Li | 4.3±0.3 | ||
| % | Fe | 34.5±1.0 | ||
| % | P | 19.5±1.0 | ||
Content of Impurity Metal ions | % | Ca | ≤0.030 | ICP: 710ICP-OES |
| % | Na | ≤0.030 | ||
| % | Mg | ≤0.030 | ||
| % | Cr | ≤0.015 | ||
| % | Mn | ≤0.010 | ||
| % | Ni | ≤0.010 | ||
| % | Cu | ≤0.005 | ||
| % | Zn | ≤0.005 | ||
| PH | / | 8.0~10.0 | 10 g LFP 90g , PH . Mix 10 g of LFP with 90 g of carbon dioxide-free water and take the supernatant to test the PH value of the product. | |
Microstructure | / | uniform | SEM | |
Moisture Content | ppm | ≤1000 | Karl Fisher Method | |
Note
1) Due to differences in test methods, test conditions, and use of testing instruments, some indicators in this specification may not be completely consistent with customer requirements, and can be unified after consultation and communication.
2) For products with special requirements or special specifications, if the technical indicators are not within the scope of this description, the technical specifications can be re-determined after consultation and evaluation with customers.
3) Under unopened, dry storage conditions, the shelf life of this product is 2 years.
4) The moisture content of the company's products has been strictly controlled. If there is no special designation requirement, after purchasing this product, customers can directly feed without baking.
