Patent ID: 11952287
Assignee: HALDOR TOPSØE A/S
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC C  B  H  Y | IPC B  C  H

Claim 0:
1. A method for the precipitation of particles of a metal carbonate material comprising nickel and manganese in an atomic ratio of 0≤Ni:Mn≤1:3, wherein an aqueous solution comprising sulfates of nickel and manganese or an aqueous solution comprising nitrates of nickel and manganese is mixed with an aqueous solution of sodium carbonate or potassium carbonate or a mixture of sodium carbonate and sodium hydroxide or a mixture of potassium carbonate and potassium hydroxide in a stirred reactor at pH>7.5 without the use of a chelating agent, thereby forming agglomerated particles in one precipitation step without any subsequent process steps to change the shapes of the agglomerated particles before use of the agglomerated particles as a precursor for the preparation of a lithium-ion battery positive electrode material, wherein the agglomerated particles are characterized by an average circularity higher than 0.90 and simultaneously an average aspect ratio lower than 1.50.