Patent ID: 11862795
Assignee: BASF SE
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C  Y | IPC C  H

Claim 0:
1. A process for modifying an electrode active material of formula Li1+xTM1−xO2,
wherein TM is a combination of metals of formula (I a) or (I b)

(NiaCobMnc)1−dM1d  (I a)

wherein a+b+c=1,
a is in the range of from 0.75 to 0.95,
b is in the range of from 0.025 to 0.2,
c is in the range of from 0.025 to 0.2,
d is in the range of from zero to 0.1,
M1 is at least one of Ba, Mg, Al, W, Mo, Ti, and Zr, and
x is in the range of from −0.05 to +0.2, and

(NiaCobAle)1−dM2d  (I b)

wherein a+b+c=1,
a is in the range of from 0.75 to 0.95,
b is in the range of from 0.025 to 0.2,
e is in the range of from 0.025 to 0.2,
d is in the range of from zero to 0.1, and
M2 is at least one of W, Mo, Ti, and Zr,
wherein said process comprises:
(a) treating said Li1+xTM1−xO2 with an aqueous medium with a pH value in the range of at least 5 to up to 14, and
(b) removing said aqueous medium from treated Li1+xTM1−xO2 by way of a solid-liquid separation, and
wherein the treating (a) and the removing (b) are carried out simultaneously.