The specific preparation method of PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC is to prepare the positive electrode material, pvdf and carbon black according to the mass ratio of 90:5: At the same time, the metal lithium plate was used as the negative electrode to make a button battery. The discharge capacity and cycle of the button battery were tested on the blue electric tester at 2.8-4.3V voltage and 0.1c rate. The high nickel ternary cathode material obtained by the method provided,
Although the discharge capacity is slightly worse than that of all washed materials, the difference is not much, which does not affect the use of PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC removal of iron ternary cathode materials; The discharge efficiency and 50-week cycle retention rate are obviously improved. Because the proportion of washing material is not within the scope of the technical requirements, the specific discharge capacity is slightly increased, but the improvement degree is almost negligible, but the cycle retention rate is significantly reduced.
The discharge capacity is obviously reduced, but the cycle retention rate is almost not increased. The results show that the ratio of water washing and low alkali material should be in the range of 1~2:1. Higher or lower than this ratio, there is no method to obtain PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC with satisfactory iron removal performance.
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