PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC for iron removal and precursor (a substance in the process of obtaining the target product) Preparation method:
The precursors of ternary materials are generally hydroxides containing nickel-cobalt-manganese with +2 valent, and the chemical formula of the precursors is NixCoyMn (1-X-y) (OH)2 (x<1, y<1).
Synthesis method of precursor: Generally, liquid phase co-precipitation PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC method is used, nickel sulfate (NiSO4), cobalt sulfate (CoSO4), manganese sulfate (MnSO4) as reactants, water as solvent, Ammonia (NH3·H2O) is used as the complexing agent (ammonia complexing agent can dissolve impurities in the precipitation of ternary materials), and sodium hydroxide (NaOH) is used as the precipitating agent.
Taking the generation of NCM523 ternary material precursor as an example, the reaction equation is as follows:
0.5 NiSO4 CoSO4 MnSO4 + 0.3 + 0.2 + 2 and naoh Ni0.5 Co0.2 Mn0.3 (OH) 2 + Na2SO4
The precursor powder was obtained after the product was desiccated by PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC for iron removal.
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