公开(公告)号：US20200083533A1

公开(公告)日：2020-03-12

申请号：US16684213

申请日：2019-11-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiqing Wang ,  Yongsheng Guo ,  Chengdu Liang ,  Shuojian Su ,  Ying Wang

IPC: H01M4/58 ,  H01M10/0525 ,  H01M10/054 ,  C01C3/11 ,  C01C3/12

Abstract: The present disclosure provides a prussian blue analogue positive electrode material, a preparation method therefor and an electrochemical energy storage device. A molecular formula of the prussian blue analogue positive electrode material is AxMc[M′(CN)6]1-y(b-H2O)6y-dLd.□y.(i-H2O)z, where, A is one or more selected from a group consisting of alkali metal cation, alkaline-earth metal cation, Zn2+ and Al3+; M is a metal with the valence of 2+ or 3+; M′ is a metal with the valence of 2+ or 3+; b-H2O is a coordinated water; □ is a M′(CN)6 cavity; L is a neutral ligand, the neutral ligand is one or more selected from a group consisting of CH3CN, NH3, CO and C5H5N; i-H2O is an interstitial water; 0

公开(公告)号：US10892473B2

公开(公告)日：2021-01-12

申请号：US16152199

申请日：2018-10-04

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Ying Wang ,  Yongsheng Guo ,  Chengdu Liang ,  Xiqing Wang ,  Shuojian Su ,  Qian Liu

IPC: H01M4/00 ,  H01M4/136 ,  H01M4/58 ,  H01M10/0525 ,  H01M4/62 ,  H01M4/02 ,  H01M10/054

Abstract: The present disclosure provides a positive electrode plate and an electrochemical battery. The positive electrode plate comprises a positive electrode current collector and a positive electrode film. The positive electrode film is provided on the positive electrode current collector and comprises a positive electrode active material and a binder. The positive electrode active material comprises a prussian blue analogue material, the binder is an oil-soluble binder, an area density of the positive electrode film is 5 mg/cm2˜30 mg/cm2. In the positive electrode film of the present disclosure, the prussian blue analogue material is used together with the oil-soluble binder, and the area density of the positive electrode film is controlled within a certain range, so that introduction of the water molecule can be reduced during the preparation process and coating process of a positive electrode slurry, and cycle performance of the electrochemical battery can be improved.

公开(公告)号：US10818924B2

公开(公告)日：2020-10-27

申请号：US16152205

申请日：2018-10-04

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Ying Wang ,  Yongsheng Guo ,  Chengdu Liang ,  Xiqing Wang ,  Shuojian Su ,  Qian Liu

IPC: H01M4/00 ,  H01M4/58 ,  H01M4/136 ,  H01M4/1397 ,  H01M10/054 ,  H01M4/04 ,  H01M4/62 ,  H01M4/02

Abstract: The present disclosure provides a positive electrode plate, a preparation method thereof and a sodium-ion battery. The positive electrode plate comprises a positive electrode current collector and a positive electrode active material film. The positive electrode active material film provided on the positive electrode current collector and comprises a positive electrode active material. The positive electrode active material comprises a prussian blue analogue material, a molecular formula of the prussian blue analogue material is AxM[M′(CN)6]y, a water content of the positive electrode active material film is 100 μg/g˜5000 μg/g. The water content of the positive electrode active material film is controlled within a certain range, which can not only ensure the sodium-ion battery do not seriously swell during charge-discharge process, but also can ensure sodium-ion battery have excellent charge-discharge performance and cycle performance.

公开(公告)号：US20190131625A1

公开(公告)日：2019-05-02

申请号：US16152205

申请日：2018-10-04

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Ying Wang ,  Yongsheng Guo ,  Chengdu Liang ,  Xiqing Wang ,  Shuojian Su ,  Qian Liu

IPC: H01M4/58 ,  H01M10/054 ,  H01M4/62 ,  H01M4/04 ,  H01M4/1397 ,  H01M4/136

CPC classification number: H01M4/5825 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/136 ,  H01M4/1397 ,  H01M4/58 ,  H01M4/622 ,  H01M4/625 ,  H01M10/054 ,  H01M2004/021 ,  H01M2004/028

Abstract: The present disclosure provides a positive electrode plate, a preparation method thereof and a sodium-ion battery. The positive electrode plate comprises a positive electrode current collector and a positive electrode active material film. The positive electrode active material film provided on the positive electrode current collector and comprises a positive electrode active material. The positive electrode active material comprises a prussian blue analogue material, a molecular formula of the prussian blue analogue material is AxM[M′(CN)6]y, a water content of the positive electrode active material film is 100 μg/g˜5000 μg/g. The water content of the positive electrode active material film is controlled within a certain range, which can not only ensure the sodium-ion battery do not seriously swell during charge-discharge process, but also can ensure sodium-ion battery have excellent charge-discharge performance and cycle performance.

公开(公告)号：US11424450B2

公开(公告)日：2022-08-23

申请号：US16684213

申请日：2019-11-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiqing Wang ,  Yongsheng Guo ,  Chengdu Liang ,  Shuojian Su ,  Ying Wang

IPC: H01M4/00 ,  H01M4/58 ,  C01C3/11 ,  C01C3/12 ,  H01M10/0525 ,  H01M10/054 ,  H01M4/02

Abstract: The present disclosure provides a prussian blue analogue positive electrode material, a preparation method therefor and an electrochemical energy storage device. A molecular formula of the prussian blue analogue positive electrode material is AxMc[M′(CN)6]1-y(b-H2O)6y-dLd.□y.(i-H2O)z, where, A is one or more selected from a group consisting of alkali metal cation, alkaline-earth metal cation, Zn2+ and Al3+; M is a metal with the valence of 2+ or 3+; M′ is a metal with the valence of 2+ or 3+; b-H2O is a coordinated water; □ is a M′(CN)6 cavity; L is a neutral ligand, the neutral ligand is one or more selected from a group consisting of CH3CN, NH3, CO and C5H5N; i-H2O is an interstitial water; 0