Patent ID: 11973179
Assignee: SK ON CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC C  H  Y | IPC H

Claim 2:
3. The method of manufacturing a cathode active material for a lithium secondary battery according to claim 2, wherein the first calcination temperature satisfies the Equations 1 and 2 below, and the second calcination temperature satisfies Equations 3 and 4 below:

t1−10≤T1(° C.)≤t1+10  [Equation 1]

(in Equation 1, t1 is a temperature according to Equation 2 below, and T1 is the first calcination temperature),

t1(° C.)=(−520)*x+1275  [Equation 2]

(in Equation 2, x is the same as x defined in Formula 1),

t2−10<T2(° C.)<t2+10  [Equation 3]

(in Equation 3, t2 is a temperature according to Equation 4 below, and T2 is the second calcination temperature),

t2(° C.)=(−520)*x+1180  [Equation 4]

(in Equation 4, x is the same as x defined in Formula 1.