Patent ID: 11909043
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. The positive electrode of claim 1, wherein the nickel-based active material in the shell is a compound represented by Formula 2:

LiaNi1-x-y-zCoxM1yM2zO2,  Formula 2

 and
wherein, in Formula 2, M1 is manganese (Mn) or aluminum (Al),
M2 is boron (B), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), titanium (Ti), vanadium (V), chromium (Cr), iron (Fe), copper (Cu), zirconium (Zr), aluminum (Al), or a combination thereof, and
0.9≤a≤1.3, 0.3≤x≤0.6, 0.002≤y≤0.05, 0≤z<1, and x+y+z<1.