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

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：US20220173435A1

公开(公告)日：2022-06-02

申请号：US17442036

申请日：2019-03-28

Applicant: Bayerische Motoren Werke Aktiengesellschaft ,  Contemporary Amperex Technology Co., Limited

Inventor： Jakub Reiter ,  Lydia Terborg ,  Sven Klein ,  Xin Qi ,  Tobias Placke ,  Martin Winter ,  Xiqing Wang ,  Jan-Patrick Schmiegel

IPC: H01M10/0567 ,  H01M10/0569 ,  H01M10/0525 ,  H01M4/505 ,  H01M4/525

Abstract: A lithium battery including an anode having an active anode material, a cathode having an active cathode material including lithium nickel cobalt manganese oxide (NCM), and an electrolyte separating anode and cathode. The electrolyte includes a solvent or solvent mixture and lithium hexafluorophosphate. The electrolyte further includes a urea-based electrolyte additive. Use of the urea-based electrolyte additive additive in the lithium battery is also disclosed for enhancing one characteristic selected from the group consisting of reversible capacity, Coulombic efficiency, cyclic stability, and combinations thereof.

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.