公开(公告)号：US20240282969A1

公开(公告)日：2024-08-22

申请号：US18641410

申请日：2024-04-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yao JIANG ,  Chuying OUYANG ,  Xinxin ZHANG ,  Bin DENG ,  Zhiqiang WANG ,  Tianci YUAN ,  Bo XU ,  Shangdong CHEN

IPC: H01M4/62 ,  H01M4/02 ,  H01M4/1391 ,  H01M4/525 ,  H01M10/0525

CPC classification number: H01M4/623 ,  H01M4/1391 ,  H01M4/525 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/028

Abstract: A positive electrode active material has an inner core and a shell coating the inner core, wherein the inner core comprises at least one of a ternary material, dLi2MnO3·(1−d)LiMO2 and LiMPO4, where 0

公开(公告)号：US20230361296A1

公开(公告)日：2023-11-09

申请号：US18351925

申请日：2023-07-13

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yao JIANG ,  Chuying OUYANG ,  Xinxin ZHANG ,  Bin DENG ,  Zhiqiang WANG ,  Tianci YUAN ,  Bo XU ,  Shangdong CHEN

IPC: H01M4/58 ,  C01B25/45 ,  H01M4/36 ,  H01M4/583

CPC classification number: H01M4/5825 ,  C01B25/45 ,  H01M4/366 ,  H01M4/583 ,  C01P2006/40 ,  C01P2002/52 ,  C01P2004/84 ,  C01P2002/72 ,  C01P2002/85 ,  H01M2004/028

Abstract: A positive electrode active material includes LiaAxMn1-yByP1-zCzO4-nDn. A includes one or more selected from group IA, group IIA, group IIIA, group IIB, group VB, and group VIB. B includes one or more selected from group IA, group IIA, group IIIA, group IVA, group VA, group IIB, group IVB, group VB, group VIB, and group VIII. C includes one or more selected from group IIIA, group IVA, group VA and group VIA. D includes one or more selected from group VIA and group VIIA. a is selected from 0.85 to 1.15. x is selected from 0 to 0.1. y is selected from 0.001 to 0.999. z is selected from 0 to 0.5. n is selected from 0 to 0.5.

公开(公告)号：US20240282963A1

公开(公告)日：2024-08-22

申请号：US18641427

申请日：2024-04-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yao JIANG ,  Chuying OUYANG ,  Xinxin ZHANG ,  Bin DENG ,  Zhiqiang WANG ,  Tianci YUAN ,  Bo XU ,  Shangdong CHEN

IPC: H01M4/58 ,  H01M4/02 ,  H01M4/136 ,  H01M4/36

CPC classification number: H01M4/5825 ,  H01M4/136 ,  H01M4/366 ,  H01M2004/021 ,  H01M2004/028

Abstract: A positive electrode active material has LiMPO4, wherein M includes Mn and a non-Mn element, and the non-Mn element satisfies at least one of the following conditions: the ionic radius of the non-Mn element being denoted as a, and the ionic radius of manganese element being denoted as b, |a−b|/b is not greater than 10%; the valence alternation voltage of the non-Mn element being denoted as U, 2 V

公开(公告)号：US20240120480A1

公开(公告)日：2024-04-11

申请号：US18527284

申请日：2023-12-02

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yao JIANG ,  Xinxin ZHANG ,  Chuying OUYANG ,  Bin DENG ,  Tianci YUAN ,  Zhiqiang WANG ,  Bo XU ,  Shangdong CHEN

IPC: H01M4/58 ,  H01M4/36 ,  H01M4/38 ,  H01M4/485 ,  H01M4/583 ,  H01M4/60 ,  H01M4/88 ,  H01M10/052

CPC classification number: H01M4/5825 ,  H01M4/366 ,  H01M4/382 ,  H01M4/485 ,  H01M4/583 ,  H01M4/60 ,  H01M4/8885 ,  H01M10/052 ,  H01M2004/028

Abstract: A positive electrode active material includes a core containing Li1+xMn1yAyP1−zRzO4, a first coating layer covering the core and containing a crystalline pyrophosphate MaP2O7 and a crystalline oxide M′bOc, and a second coating layer covering the first coating layer.