公开(公告)号：US20240088376A1

公开(公告)日：2024-03-14

申请号：US18515305

申请日：2023-11-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zibin Liang ,  Yuhao Wang ,  Wenguang Lin ,  Xinxin Zhang ,  Jinhua He

IPC: H01M4/505 ,  C01G53/00 ,  H01M4/131 ,  H01M4/525

CPC classification number: H01M4/505 ,  C01G53/50 ,  H01M4/131 ,  H01M4/525 ,  H01M2004/028

Abstract: Provided are a layered oxide and a preparation method thereof, a positive electrode sheet, a secondary battery, a battery module, a battery pack and an electrical apparatus. The layered oxide includes an oxide with the general formula NaxMnyAaQbCcO2, where A is one or two of Fe and Ni; Q is one or more of transition metal elements containing 3d or 4d orbital electrons except Fe and Ni; C is one or two of Al and B, 0.66

公开(公告)号：US20240194867A1

公开(公告)日：2024-06-13

申请号：US18411049

申请日：2024-01-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zibin Liang ,  Yuhao Wang ,  Wenguang Lin ,  Xinxin Zhang ,  Jinhua He

IPC: H01M4/505 ,  C01G53/00 ,  H01M4/02 ,  H01M4/525 ,  H01M10/054

CPC classification number: H01M4/505 ,  C01G53/50 ,  C01G53/66 ,  H01M4/525 ,  C01P2002/20 ,  C01P2002/72 ,  C01P2002/76 ,  C01P2002/78 ,  C01P2006/10 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/40 ,  H01M2004/021 ,  H01M10/054

Abstract: The present application provides a positive electrode active material and the preparation thereof, a secondary battery, a battery module, a battery pack, and electrical device. The positive electrode active material of the present application comprises a layered sodium composite oxide containing antimony having a chemical formula of Formula I, NaxMnaFebNicSbdLeO2 (I), in which 0.7

公开(公告)号：US20240162438A1

公开(公告)日：2024-05-16

申请号：US18420795

申请日：2024-01-24

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Shunli He ,  Zibin Liang ,  Yuhao Wang ,  Wenguang Lin ,  Qiang Li ,  Xinxin Zhang ,  Jinhua He

IPC: H01M4/525 ,  H01M4/02 ,  H01M4/36 ,  H01M4/505 ,  H01M4/58 ,  H01M10/052

CPC classification number: H01M4/525 ,  H01M4/366 ,  H01M4/505 ,  H01M4/582 ,  H01M10/052 ,  H01M2004/028

Abstract: An electrode active material is provided. The electrode active material includes a layered metal oxide having a general formula NaxZnaNibMncM1dO2M2e, where 0.6≤x≤0.85, 0.95≤a+b+c+d≤1.05, 0≤d≤0.05, and 0≤e≤0.067, and where 0.04≤a/c≤0.1 and 0.23≤b/c≤0.45. M1 is selected from at least one of alkaline earth metal elements, transition metal elements, and alkali metal elements other than Zn, Ni, and Mn, and M2 is selected from non-metallic elements other than O.

公开(公告)号：US20240030426A1

公开(公告)日：2024-01-25

申请号：US18472245

申请日：2023-09-22

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qiang Li ,  Yuhao Wang ,  Wenguang Lin ,  Zibin Liang ,  Shunli He ,  Jinhua He

IPC: H01M4/505 ,  H01M10/054 ,  C01G49/00

CPC classification number: H01M4/505 ,  H01M10/054 ,  C01G49/0072 ,  C01P2002/50 ,  C01P2006/40 ,  C01P2002/20 ,  C01P2004/03 ,  C01P2002/72

Abstract: Provided are a positive active material for use in a sodium-ion battery, a method for preparing same, a positive electrode plate containing same, a sodium-ion battery, and an electrical device. The method for preparing a positive active material for use in a sodium-ion battery includes the following steps: mixing a positive active material for use in a sodium-ion battery with, and causing the positive active material to react with, a washing solution at a temperature of T1, and filtering and drying a product of the reaction to obtain a washed positive active material for use in a sodium-ion battery, where the washing solution is deionized water or an acidic solution with a pH value lower than 7.0, and 0° C.≤T1