METHOD FOR PRODUCING POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND POSITIVE ELECTRODE POSITIVE MATERIAL PRODUCED THEREBY
Search Report
EP4668397A3
Kind: A3
Mar 18, 2026
Applicants
LG Chem, Ltd.
Inventors
JUNG, Won Sig, PARK, Hyun Ah, YOON, Yeo June, LEE, Kang Hyeon
Abstract
The present invention relates to a method for producing a positive electrode active material, the method including washing a lithium transition metal oxide with a washing solution, and solid-phase mixing the washed lithium transition metal oxide and a metal phosphate compound having a melting point of 500°C or lower, followed by performing heat treatment to form a coating layer on the surface of the lithium transition metal oxide.
IPC Classifications
C01G 53/00 20250101AFI20260209BHEP
C01B 25/45 20060101ALI20260209BHEP
H01M 4/36 20060101ALI20260209BHEP
H01M 4/58 20100101ALI20260209BHEP
H01M 4/525 20100101ALI20260209BHEP
H01M 4/02 20060101ALI20260209BHEP
H01M 4/1391 20100101ALI20260209BHEP
H01M 4/04 20060101ALI20260209BHEP
H01M 4/131 20100101ALI20260209BHEP
H01M 4/136 20100101ALI20260209BHEP
H01M 4/62 20060101ALI20260209BHEP
H01M 10/0525 20100101ALI20260209BHEP
Designated States
AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR