公开(公告)号：US20230119115A1

公开(公告)日：2023-04-20

申请号：US18085497

申请日：2022-12-20

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jinhua HE ,  Qi WU ,  Jingpeng FAN ,  Qiang CHEN ,  Yuxiang ZHAO

IPC: H01M4/62 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/04 ,  H01M10/0525

Abstract: This application provides a positive-electrode active material and a manufacturing method thereof. The positive-electrode active material includes a positive-electrode active material matrix and a coating layer, and the coating layer coats a surface of the positive-electrode active material matrix. The positive-electrode active material matrix is Li1+a[NixCoyMnzMb]O2, where 0

公开(公告)号：US20240199439A1

公开(公告)日：2024-06-20

申请号：US18322010

申请日：2023-05-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qi WU ,  Chongheng SHEN ,  Qiang CHEN ,  Jingpeng FAN ,  Yuxiang ZHAO ,  Qisen HUANG

IPC: C01G53/00 ,  C01G53/04 ,  H01M4/505 ,  H01M4/525 ,  H01M4/02 ,  H01M10/0525

CPC classification number: C01G53/006 ,  C01G53/04 ,  H01M4/505 ,  H01M4/525 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/50 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2004/84 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/40 ,  H01M2004/021 ,  H01M2004/028 ,  H01M10/0525

Abstract: This application relates to a ternary precursor for making a material for positive electrodes in lithium batteries. In the ternary precursor, primary particles or whiskers of the ternary precursor are distributed in a radial direction. A deformation stacking fault probability fD of the ternary precursor is ≤2.5%. This application further relates to a preparation method of the ternary precursor, a ternary positive electrode material, a secondary battery, a battery module, a battery pack, and an electric apparatus.

公开(公告)号：US20230395796A1

公开(公告)日：2023-12-07

申请号：US18325996

申请日：2023-05-30

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qi WU ,  Qiang CHEN ,  Yuxiang ZHAO ,  Jingpeng FAN ,  Qisen HUANG

IPC: H01M4/525 ,  H01M10/0525 ,  H01M4/36 ,  H01M4/04 ,  H01M4/505

CPC classification number: H01M4/525 ,  H01M10/0525 ,  H01M4/366 ,  H01M4/0471 ,  H01M4/505 ,  H01M2220/20 ,  H01M2004/028

Abstract: A modified high-nickel ternary positive electrode material includes an inner core and inner and outer coating layers. The inner core includes a high-nickel ternary positive electrode material matrix, the matrix being doped with M1, M2, and W. M1 is one of Mo, Zr, Ti, Sb, Nb, and Te. M2 is one of Mg, Al, Ca, Zn, and Sr. Chemical formula of the high-nickel ternary positive electrode material matrix is Li1+a[NixCoyMnzM1bM2cWd]O2. 0.65≤x