The washed material and the low alkali material are put into the coating mixer according to the mass ratio of 2.3:1. The washed material and the low alkali material are put into the coating mixer according to the mass ratio of 0.5:1. High nickel ternary cathode MATERIAL prepared by PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC was prepared into a electrode, and its discharge capacity, discharge efficiency and 50-week cycle retention were tested.
The high alkali material is washed for alkali reduction, while the low alkali material is not washed. For the final product of ternary positive electrode material, the washing part is reduced by 1/3~1/2, which reduces the influence of the washing process and the drying process after washing on the ternary positive electrode material product. Although the low alkali material is not washed, PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC makes the discharge capacity of the final ternary cathode material relative to that of the completely washed ternary cathode material.
Under the premise of meeting the requirements of use, it is slightly worse, but it significantly improves the cycle retention rate of discharge efficiency, especially the method provided by the technology. Due to the reduction of the amount of washing, the workload of the press filtration and drying process after washing is reduced, which can shorten the manufacturing cycle of the material and reduce the production cost. This can bring significant economic benefits for the preparation process of PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC, which has been developed more mature at present.
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