Alkaline precipitants include at least one of sodium hydroxide and potassium hydroxide. A third solution of PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC field is prepared. The third solution includes ammonia water and reducing agent. Ammonia water is used as a complexing agent, which can form a flocculent metal complex with bivalent nickel ion, bivalent iron ion and bivalent manganese ion. Reducing agent is used to inhibit the oxidation of bivalent iron ion to trivalent iron ion.
After the formation of trivalent iron ions, it is easy to form small size particles, and inhibit the continued growth of crystals. Small size particles are attached to the flake particles, which is easy to lead to irregular shape of the flake particles. PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC field Avoiding the formation of trivalent iron ions can make the size of the sheet particles on the formed spheroids more uniform.
The concentration of ammonia in the third solution is 2g/l ~ 6g/l. The concentration of ammonia also affects the growth rate and quality of precipitated crystals. The concentration of PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC reducing agent in the third solution is 0.2ml/l ~ 5ml/l. Reducing agents include at least one of hydrazine hydrate, sodium sulfite and sodium borohydride.
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