The production method of nickel cobalt lithium manganese oxide cathode material precursor (IV)
The production method of nickel cobalt lithium manganese oxide cathode material precursor (Ni0.4Co0.2Mn0.4) O1.05 involves several steps aimed at obtaining high-quality material with specific properties. Let’s delve into the process in detail.
The first step is the preparation of nickel cobalt manganese alloy powder. To begin, metal nickel, cobalt, and manganese are mixed in a molar ratio of 4:2:4. The mixture is then subjected to heating while being protected by nitrogen gas. Under these conditions, the metals melt and form a liquid state. Next, a high-pressure flow of nitrogen gas is used to atomize the molten metal into fine powder particles. This atomized metal powder subsequently solidifies, settles, and finally collects in a powder collection tank, resulting in the formation of nickel cobalt manganese alloy powder.
The particles of the nickel cobalt manganese alloy powder are known to have a regular spherical shape. Furthermore, they exhibit a loose density of 4.7 g/cm3 and a compacted density of 5.1 g/cm3. The high-temperature melting of nickel, cobalt, and manganese metals ensures a uniform mixing of the alloy powder at the atomic level. This uniformity is highly advantageous for the subsequent preparation of highly homogeneous nickel cobalt manganese oxides.
Moving on to the second step of the process, we have the oxidation of the nickel cobalt manganese alloy powder to obtain nickel cobalt manganese oxide. The alloy powder obtained from the previous step is placed in an oxidation furnace where it is continuously stirred at a speed of 80 r/min. Compressed oxygen is introduced into the furnace at a pressure of 0.6 MPa to maintain a dynamic environment for roasting and oxidation. The oxidation process is carried out at a temperature of 700 ℃ for a duration of 1 hour. Once oxidation is complete, the product is transferred to an airflow mill for crushing treatment. This crushing process requires a gas consumption of 1 m3/min and an air pressure of 1 MPa.
The resulting nickel cobalt manganese oxide (Ni0.4Co0.2Mn0.4) O1.05 has specific characteristics. It has an average particle size (D50) of 8 μm, a loose density of 1.9 g/cm3, and a compacted density of 2.5 g/cm3. These properties make it suitable for various applications.
By following this production method, manufacturers can obtain nickel cobalt lithium manganese oxide cathode material precursor with consistent quality and desired attributes. The uniform spherical shape of the alloy powder particles, achieved through high-temperature melting, contributes to the overall homogeneity of the resulting oxide material. This material can then be further processed and utilized in various applications requiring reliable cathode materials.
Our major products of metal extractants and usage as below:
- P204 (D2EHPA or HDEHP) This is used for first step to remove impurity for laterite nickel ore.
- DY319 high efficiency nickel cobalt co-extraction extractant, can take out nickel and cobalt together from nickel laterite ore or Lithium battery electrolyte. This is second step for laterite nickel ore.
- DZ272 Nickel cobalt separation extractant, it can take cobalt out from nickel cobalt solution, then leave pure nickel. This is third step for laterite nickel ore.
- DY377 efficient nickel and diamond separation extractant.
- DY366 new advanced nickel cobalt extractant.
- DZ988N/DZ973N/DZ902 copper solvent extraction reagent.
- DY301, DY302 for nuclear spent fuel recovery.
- Other extraction reagents for Vanadium extractant, Lithium extractant, Ferro extractant and rare earth extractant.
