Patent ID: 11870068
Assignee: SK ON CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 6:
7. The secondary battery of claim 1, wherein the cathode active material is represented by Chemical Formula 1 below:

LixNiaM2bM3cM4dM5eM6fM7gOy   [Chemical Formula 1]

(In Chemical Formula 1, M2 and M3 are selected from the group consisting of Co and Mn, and M4, M5, M6, and M7 are selected from the group consisting of Na, Mg, Ca, Ti, V, Cr, Cu, Zn, Ge, Sr, Ag, Ba, Zr, Nb, Mo, Al, Ga, and B, and 0<x≤1.1, 2≤y=2.02, 0.6≤a≤0.95, 0.05≤b+c≤0.4, 0≤d≤1, 0≤e≤1, 0≤f≤1, 0≤g≤1, and 0<a+b+c+d+e+f+g≤1).