Ternary precursor particles and method for manufacturing the same

A method for manufacturing ternary precursor particles comprising:

• dissolving a nickel source, a cobalt source and a manganese source in a deionized water to form a first mixed solution comprising nickel ions, cobalt ions and manganese ions;
• adding the first mixed solution and a first alkaline solution into a first reactor, and adding a first complexing agent into the first reactor, the first mixed solution reacting with hydroxide ions in the first reactor to generate crystal seeds;
• wherein the first reactor comprises a base solution before adding the first mixed solution and a first alkaline solution into a first reactor, a liquid level of the base solution is higher than a feed inlet of the reactor;
• adding the crystal seeds, a second complexing agent, a second mixed solution, and a second alkaline solution into a second reactor to chemically react and form a slurry comprising sediments, wherein the second mixed solution is formed by dissolving a nickel source, a cobalt source and a manganese source in a deionized water, a solid content of the slurry in the second reactor is adjusted by a filtration return process for 1 hour to 12 hours to be maintained from 700 g/L to 1600 g/L;
• transferring the slurry into an aging tank for further chemical reactions, separating the sediments from the slurry by a solid-liquid separation process, and washing the separated sediments by deionized water;
• and
• drying the sediments from the aging tank in an oxygen-rich atmosphere to obtain the ternary precursor particles, the precursor particles being a spheroidal structure and comprising a shell, a particle core of a porous structure, and a transition layer surrounding the particle core and sandwiched between the shell and the particle core, wherein a density of the shell is greater than a density of the particle core.