Patent ID: 11949102
Assignee: SUMITOMO METAL MINING CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C  Y | IPC C  H

Claim 0:
1. A positive electrode active material precursor for a nonaqueous electrolyte secondary battery, the positive electrode active material precursor comprising:
a nickel-cobalt-manganese carbonate composite represented by general formula NixCoyMnzMtCO3 (where x+y+z+t=1, 0.05≤x≤0.3, 0.1≤y≤0.4, 0.55≤z≤0.8, 0≤t≤0.1, and M denotes at least one additional element selected from a group consisting of Mg, Ca, Al, Ti, V, Cr, Zr, Nb, Mo, and W); and
a hydrogen-containing functional group, wherein H/Me representing a ratio of an amount of hydrogen (H) to an amount of metal components (Me) included in the positive electrode active material precursor is less than 1.60;
wherein a secondary particle of the positive electrode active material precursor is formed by a plurality of primary particles of the positive electrode active material precursor that have been aggregated.