中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

9 records (took 0.011 seconds)

    ELECTROCHEMICAL DEVICE
    1.
    发明公开
    ELECTROCHEMICAL DEVICE 审中-公开

    公开(公告)号：US20240250311A1

    公开(公告)日：2024-07-25

    申请号：US18627672

    申请日：2024-04-05

    Applicant: Ningde Amperex Technology Limited

    Inventor： Qiang ZHENG ,  ZhanZhao FANG ,  Qi DANG

    IPC: H01M10/0587 ,  H01M4/36 ,  H01M4/66 ,  H01M4/70 ,  H01M10/0525

    CPC classification number: H01M10/0587 ,  H01M4/366 ,  H01M4/667 ,  H01M4/70 ,  H01M10/0525

    Abstract: An electrochemical device, including a cell and a shell enclosing the cell; the cell includes a jelly roll including a first electrode and a second electrode spaced from each other, a separator is disposed between the first electrode and the second electrode, the first electrode and the second electrode are wound to form the cell; the first electrode includes a first current collector, the first current collector includes a first surface and a second surface disposed oppositely; the first surface faces the shell, and includes a coated region coated with a first active material and an uncoated region; the uncoated region includes a first uncoated region disposed at an end of the jelly roll, and the first uncoated region includes alternating bent portions and straight portions; and the bent portions are provided with an insulating layer.

    ELECTROCHEMICAL DEVICE
    5.
    发明申请
    ELECTROCHEMICAL DEVICE 有权

    公开(公告)号：US20220367919A1

    公开(公告)日：2022-11-17

    申请号：US17874615

    申请日：2022-07-27

    Applicant: Ningde Amperex Technology Limited

    Inventor： Qiang ZHENG ,  Zhanzhao FANG ,  Qi DANG

    IPC: H01M10/0587 ,  H01M4/36 ,  H01M4/66 ,  H01M4/70 ,  H01M10/0525

    Abstract: An electrochemical device, including a cell and a shell enclosing the cell; the cell includes a jelly roll including a first electrode and a second electrode spaced from each other, a separator is disposed between the first electrode and the second electrode, the first electrode and the second electrode are wound to form the cell; the first electrode includes a first current collector, the first current collector includes a first surface and a second surface disposed oppositely; the first surface faces the shell, and includes a coated region coated with a first active material and an uncoated region; the uncoated region includes a first uncoated region disposed at an end of the jelly roll, and the first uncoated region includes alternating bent portions and straight portions; and the bent portions are provided with an insulating layer.

    ELECTRODE SHEET, CELL AND BATTERY
    6.
    发明公开
    ELECTRODE SHEET, CELL AND BATTERY 审中-公开

    公开(公告)号：US20240355996A1

    公开(公告)日：2024-10-24

    申请号：US18763155

    申请日：2024-07-03

    Applicant: Ningde Amperex Technology Limited

    Inventor： Zhenghuang CAI ,  Hai LONG ,  Qiang ZHENG

    IPC: H01M4/04 ,  H01M4/66 ,  H01M4/70 ,  H01M10/04 ,  H01M50/46 ,  H01M50/533 ,  H01M50/538

    CPC classification number: H01M4/0404 ,  H01M4/66 ,  H01M4/70 ,  H01M10/0431 ,  H01M50/46 ,  H01M50/533 ,  H01M50/538

    Abstract: An electrode sheet has a first end and a second end opposite each other, and includes a current collector, active materials disposed on a first coated zone and a second coated zone, and a plurality of electrode tabs. The current collector includes a side edge, opposing first and second surfaces. The first surface includes a first coated zone and a first uncoated zone, and the second surface includes a second coated zone. At the first end, the first coated zone and the second coated zone are flush. At the second end, the first coated zone is misaligned with the second coated zone. The sum of the length of the first coated zone and the length of the first uncoated zone is equal to the length of the second coated zone. Each electrode tab is coupled to the current collector and protrudes beyond the side edge.

    ELECTRODE SHEET, CELL AND BATTERY
    7.
    发明申请
    ELECTRODE SHEET, CELL AND BATTERY 审中-公开

    公开(公告)号：US20200313148A1

    公开(公告)日：2020-10-01

    申请号：US16828742

    申请日：2020-03-24

    Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

    Inventor： Zhenghuang CAI ,  Hai LONG ,  Qiang ZHENG

    IPC: H01M2/26 ,  H01M2/16 ,  H01M4/70 ,  H01M4/04 ,  H01M4/66 ,  H01M10/04

    Abstract: An electrode sheet has a first end and a second end opposite each other, and includes a current collector, active materials disposed on a first coated zone and a second coated zone, and a plurality of electrode tabs. The current collector includes a side edge, opposing first and second surfaces. The first surface includes a first coated zone and a first uncoated zone, and the second surface includes a second coated zone. At the first end, the first coated zone and the second coated zone are flush. At the second end, the first coated zone is misaligned with the second coated zone. The sum of the length of the first coated zone and the length of the first uncoated zone is equal to the length of the second coated zone. Each electrode tab is coupled to the current collector and protrudes beyond the side edge.

    BATTERY CELL AND BATTERY HAVING BATTERY CELL THEREIN
    8.
    发明申请
    BATTERY CELL AND BATTERY HAVING BATTERY CELL THEREIN 审中-公开

    公开(公告)号：US20200014015A1

    公开(公告)日：2020-01-09

    申请号：US16454863

    申请日：2019-06-27

    Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

    Inventor： Qiang TAO ,  Shuai LI ,  Qi DANG ,  Qiang ZHENG ,  Zhanzhao FANG ,  Shixi YU

    IPC: H01M2/26 ,  H01M10/0587 ,  H01M10/04 ,  H01M10/0525 ,  H01M4/70 ,  H01M4/36 ,  H01M4/04 ,  H01M2/34

    Abstract: An electrode assembly and a battery are disclosed. The electrode assembly includes a first current collector including a first section and a second section, a second current collector including a third section and a fourth section, and a first protective layer. An outer surface of the first section is provided with an active material layer, and none of an outer surface and an inner surface of the second section, an inner surface of the first section, an outer surface of the third section, and an inner surface of the fourth section is provided with the active material layer. The outer surface of the third section faces the inner surface of the first section and the inner surface of the second section, and the inner surface of the fourth section faces the outer surface of the second section.

    METHOD AND APPARATUS OF BATTERY CHARGING
    9.
    发明申请
    METHOD AND APPARATUS OF BATTERY CHARGING 审中-公开

    公开(公告)号：US20170366015A1

    公开(公告)日：2017-12-21

    申请号：US15626951

    申请日：2017-06-19

    Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

    Inventor： Fuping LUO ,  Yu LUO ,  Shengwei WANG ,  Zhanzhao FANG ,  Chao GAO ,  Qiang ZHENG

    IPC: H02J7/00 ,  H01M10/44 ,  H01M10/0525

    CPC classification number: H02J7/007 ,  H01M10/0525 ,  H01M10/44 ,  H02J7/00 ,  H02J7/0045

    Abstract: Embodiments of the present application provide a method of battery charging, which relates to the field of battery charging and is capable of effectively improving safety performance of the battery. The method includes: obtaining an anode open circuit voltage curve, an anode impedance curve, a lithium deposition potential threshold and a state of charge, corresponding to a battery; determining a current anode open circuit voltage according to the anode open circuit voltage curve and the state of charge; determining a current anode impedance according to the anode impedance curve and the state of charge; determining a current charging current according to the current anode open circuit voltage, the current anode impedance and the lithium deposition potential threshold; and charging the battery according to the current charging current. Embodiments of the present application are applicable to a rapid battery charging process.

Patent Agency Ranking