Hold at room temperature for 24h, filter, and wash with 1000ml deionized water, remove impurities, drying, PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC remove iron; pre-burn at 450℃ for 6h to obtain precursor powder; take nickel sulfate, iron sulfate, manganese sulfate and 100ml deionized water to prepare transition metal salt solution; take sodium hydroxide and anhydrous sodium carbonate in 150ml deionized water to prepare precipitate;
When the solution is completely dissolved to clarification, slowly add the solution to the solution, adjust pH to about 9, react for 6h at 75℃; stand at room temperature for 24h, filter, and wash with 1000ml deionized water to remove impurities, dry, PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC remove iron; pre-burn at 450℃ for 6h to obtain the precursor powder;
Take sodium acetate in the mixed solution of absolute ethanol and deionized water, add the resulting precursor powder, stir at 70℃ until the solution is fully volatile, 110℃ vacuum drying for 12h after grinding; sintering at 850℃ for 12h, PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC iron removal to obtain the final sodium ion battery layered cathode material.
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