Patent ID: 11901552
Assignee: RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC C  H  Y | IPC H

Claim 2:
3. The positive active material for the lithium rechargeable battery of claim 1, wherein
the nickel-based metal oxide particle including the core portion and the shell portion has an average composition represented by Chemical Formula 4 below:

Lim4[Ni1-w4-x4-y4-z4Cow4M1x4M2y4M3z4]n4O2-p4Xp4  [Chemical Formula 4]

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,
w4, x4, y4, z4, and p4 are respectively 0<w4≤0.2, 0<x4≤0.2, 0<y4≤0.006, 0<z4 ≤0.006, 0<w4+x4+y4+z4≤0.4 and 0≤p4≤0.1, 0.95≤m4≤1.1, and 0.95≤n4≤1.1).