公开(公告)号：US20240105931A1

公开(公告)日：2024-03-28

申请号：US18189820

申请日：2023-03-24

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Kyung Yoon CHUNG ,  Mingony KIM ,  Eunbi KIM ,  Jae-Ho PARK

IPC: H01M4/505 ,  C01G53/00 ,  H01M4/525

CPC classification number: H01M4/505 ,  C01G53/44 ,  H01M4/525 ,  H01M2004/028

Abstract: Provided is a method for preparing a cathode active material for a lithium secondary battery, and more particularly, the method includes mixing lithium nitrate, nickel nitrate, cobalt nitrate, and manganese nitrate with a solvent to form a mixture, performing first annealing on the mixture to form an NCM precursor including the lithium nitrate and transition metal oxide (NiCoMnO), compressing the NCM precursor to remove voids, and performing second annealing on the NCM precursor to form NCM particles.