公开(公告)号：US20210119209A1

公开(公告)日：2021-04-22

申请号：US17135519

申请日：2020-12-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Rui DU ,  Yongchao LIU ,  Sihui WANG ,  Deyu ZHAO ,  Na LIU

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

Abstract: The present application relates to the electrochemical field, and in particular, to a positive electrode material, and an electrochemical energy storage apparatus having thereof. The present application provides a positive electrode material, including a substrate. The substrate includes secondary particles containing primary particles. A surface of the substrate is coated with an oxide coating layer. The oxide coating layer comprises a coating element, and the coating element is selected from one or more of Al, Ba, Zn, Ti, Zr, Mg, W, Y, Si, Sn, B, Co, or P. The electrochemical energy storage apparatus comprises the foregoing positive electrode material.

公开(公告)号：US20240204187A1

公开(公告)日：2024-06-20

申请号：US18594726

申请日：2024-03-04

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO. LIMITED

Inventor： Chongheng SHEN ,  Rui DU ,  Yongchao LIU ,  Deyu ZHAO ,  Na LIU

IPC: H01M4/525 ,  H01M4/02 ,  H01M4/36 ,  H01M4/505

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

Abstract: This disclosure relates to the electrochemical field, and in particular, to a positive electrode material and a preparation method and usage thereof. The positive electrode material of this disclosure includes a substrate, where a general formula of the substrate is LixNiyCozMkMepOrAm, where 0.95≤x≤1.05, 0.5≤y≤1, 0≤z≤1, 0≤k≤1, 0≤p≤0.1, 1≤r≤5.2, 0≤m≤2, m+r≤2, M is selected from one or more of Mn and Al, Me is selected from one or more of Zr, Zn, Cu, Cr, Mg, Fe, V, Ti, Sr, Sb, Y, W, and Nb, and A is selected from one or more of N, F, S, and Cl; and an oxygen defect level of the positive electrode material satisfies at least one of condition (1) or condition (2): (1) 1.77≤OD1≤1.90; or (2) 0.69≤OD2≤0.74.

公开(公告)号：US20230126587A1

公开(公告)日：2023-04-27

申请号：US18087064

申请日：2022-12-22

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Rui DU ,  Sihui WANG ,  Yongchao LIU ,  Chi LUO ,  Deyu ZHAO ,  Na LIU

IPC: H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  G01N21/33

Abstract: This disclosure relates to the field of electrochemistry, and in particular, to a positive electrode material, an electrochemical energy storage apparatus and a vehicle. The positive electrode material of this disclosure includes a substrate, with a formula of the substrate being LixNiyCOzMkMepOrAm, where 0.95≤x≤1.05, 0.50≤y≤0.95, 0≤z≤0.2, 0≤k≤0.4, 0≤p≤0.05, 1≤r≤2, 0≤m≤2, m+r≤2; a coating layer is disposed on the substrate, where the coating layer includes a coating element; and absorbance of nickel leachate per unit mass of the positive electrode material w≤0.7.

公开(公告)号：US20220085378A1

公开(公告)日：2022-03-17

申请号：US17518744

申请日：2021-11-04

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Rui DU ,  Sihui WANG ,  Yongchao LIU ,  Chi LUO ,  Deyu ZHAO ,  Na LIU

IPC: H01M4/62 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525

Abstract: This disclosure relates to the field of electrochemistry, and in particular, to a positive electrode material. The positive electrode material of this disclosure includes a substrate, with a formula of the substrate being LixNiyCozMkMepOrAm, where 0.95≤x≤1.05, 0.50≤y≤0.95, 0≤z≤0.2, 0≤k≤0.4, 0≤p≤0.05, 1≤r≤2, 0≤m≤2, m+r≤2; a coating layer is disposed on the subs hate, where the coating layer includes a coating element; and absorbance of nickel leachate per unit mass of the positive electrode material w≤0.7.

公开(公告)号：US20220059837A1

公开(公告)日：2022-02-24

申请号：US17517958

申请日：2021-11-03

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO. LIMITED

Inventor： Chongheng SHEN ,  Rui DU ,  Yongchao LIU ,  Deyu ZHAO ,  Na LIU

IPC: H01M4/525 ,  H01M4/505 ,  H01M4/36

Abstract: This disclosure relates to the electrochemical field, and in particular, to a positive electrode material and a preparation method and usage thereof. The positive electrode material of this disclosure includes a substrate, where a general formula of the substrate is LixNiyCozMkMepOrAm, where 0.95≤x≤1.05, 0.5≤y≤1, 0≤z≤1, 0≤k≤1, 0≤p≤0.1, 1≤r≤5.2, 0≤m≤2, m+r≤2, M is selected from one or more of Mn and Al, Me is selected from one or more of Zr, Zn, Cu, Cr, Mg, Fe, V, Ti, Sr, Sb, Y, W, and Nb, and A is selected from one or more of N, F, S, and Cl; and an oxygen defect level of the positive electrode material satisfies at least one of condition (1) or condition (2): (1) 1.77≤OD1≤1.90; or (2) 0.69≤OD2≤0.74.