Patent ID: 11901552
Assignee: POSCO CO., LTD
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC C  H  Y | IPC H

Claim 6:
7. The positive active material for the lithium rechargeable battery of claim 1, wherein
the composition of the core portion of the nickel-based lithium metal oxide particle is represented by Chemical Formula 5 in the entire region:

Lim5[Ni1-w5-x5-y5-z5Cow5M1x5M2y5M3z5]n5O2-p5Xp5  [Chemical Formula 5]

(in Chemical Formula 5,
M1 is one element selected from a group including Mn, Mg, Sn, Ca, Ge, and Ga,
M2 is Zr, M3 is Al,
X is one element selected from a group including F, N, and P,
w5, x5, y5, z5, and p5 are respectively 0≤w5≤0.1, 0≤x5≤0.1, 0<y5≤0.005, 0<z5 ≤0.006, 0≤w5+x5+y5+z5≤0.2, and 0<p5<0.1, 0.95≤m5≤1.1, and 0.95≤n5≤1.1).