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    SECONDARY BATTERY
    2.
    发明公开
    SECONDARY BATTERY 审中-公开

    公开(公告)号：US20230268620A1

    公开(公告)日：2023-08-24

    申请号：US18014071

    申请日：2022-02-07

    申请人： Samsung SDI Co., Ltd.

    发明人： Ho Jae LEE ,  Dae Kyu KIM ,  Hyun Ki JUNG ,  Myung Seob KIM ,  Won Sug LEE

    IPC分类号： H01M50/533 ,  H01M50/538 ,  H01M50/107 ,  H01M50/152

    CPC分类号： H01M50/533 ,  H01M50/538 ,  H01M50/107 ,  H01M50/152

    摘要： The present invention relates to a secondary battery capable of reducing costs and increasing capacity. For example, disclosed is a secondary battery characterized by comprising: an electrode assembly including a first electrode, a second electrode, and a separator; a case accommodating the electrode assembly; and a cap assembly coupled to the upper portion of the case, wherein the first electrode comprises: a first current collector; a first current collecting tab structure extending from the first current collector and having a plurality of bent current collection parts; and a first lead tab electrically connected to the first current collecting tab structure, wherein, in the first current collecting tab structure, the width of the current collection parts increases from the center of the electrode assembly to the outside, and the distance between the current collection parts increases.

    CYLINDRICAL SECONDARY BATTERY
    5.
    发明公开
    CYLINDRICAL SECONDARY BATTERY 审中-公开

    公开(公告)号：US20240186587A1

    公开(公告)日：2024-06-06

    申请号：US18481081

    申请日：2023-10-04

    申请人： SAMSUNG SDI CO., LTD.

    发明人： Hyun Ki JUNG

    IPC分类号： H01M10/0587 ,  H01M4/13 ,  H01M4/36 ,  H01M50/107 ,  H01M50/152 ,  H01M50/179 ,  H01M50/559

    CPC分类号： H01M10/0587 ,  H01M4/13 ,  H01M4/366 ,  H01M50/107 ,  H01M50/152 ,  H01M50/179 ,  H01M50/559 ,  H01M2004/027

    摘要： A cylindrical secondary battery includes: an electrode assembly including a positive electrode plate, a separator, and a negative electrode plate; a case accommodating the electrode assembly and electrically connected to the negative electrode plate; a rivet terminal penetrating a lower surface of the case and electrically connected to the positive electrode plate; and a cap plate sealing an upper portion of the case, wherein the negative electrode plate includes a negative electrode current collector having a first surface and a second surface, a first negative electrode active material layer coated with a negative electrode active material on the first surface, a second negative electrode active material layer coated with the negative electrode active material on the second surface, and a negative electrode uncoated portion, and a length of the first negative electrode active material layer is different from that of the second negative electrode active material layer.

    CYLINDRICAL SECONDARY BATTERY
    7.
    发明公开
    CYLINDRICAL SECONDARY BATTERY 审中-公开

    公开(公告)号：US20230238614A1

    公开(公告)日：2023-07-27

    申请号：US18003491

    申请日：2022-03-30

    申请人： Samsung SDI Co., Ltd.

    发明人： Hyun Ki JUNG ,  Won Sug LEE

    IPC分类号： H01M50/107 ,  H01M50/538 ,  H01M50/186 ,  H01M50/184 ,  H01M50/167 ,  H01M50/148

    CPC分类号： H01M50/107 ,  H01M50/538 ,  H01M50/186 ,  H01M50/184 ,  H01M50/167 ,  H01M50/154

    摘要： An embodiment of the present invention relates to a cylindrical secondary battery comprising: a cylindrical can having a bottom surface and a side portion extending from the bottom surface, one end of the side portion being open to form an opening; an electrode assembly accommodated in the can; and a cap assembly including a gasket which is inserted into the can with the electrode assembly inserted in the can to come into contact with the electrode assembly, and a cap plate which is disposed on the gasket and is electrically connected to the electrode assembly, wherein the can has, at the edge of the opening, a curling portion which presses the gasket to bring the gasket into contact with the cap plate.

    SECONDARY BATTERY
    8.
    发明申请
    SECONDARY BATTERY 有权

    公开(公告)号：US20230012811A1

    公开(公告)日：2023-01-19

    申请号：US17812648

    申请日：2022-07-14

    申请人： Samsung SDI Co., Ltd.

    发明人： Seong Bong CHO ,  Eui Kwang JEONG ,  Jeong Wook YI ,  Hyun Ki JUNG

    IPC分类号： H01M50/538 ,  H01M50/578 ,  H01M10/0587

    摘要： Provided is a secondary battery. The secondary battery includes a can, an electrode assembly in the can, a collector plate electrically connected to the electrode assembly, and a terminal having a coupling part mechanically coupled to the collector plate by a pressure, electrically connected to the collector plate, and electrically connected to the electrode assembly.

    SECONDARY BATTERY
    9.
    发明申请
    SECONDARY BATTERY 有权

    公开(公告)号：US20230006291A1

    公开(公告)日：2023-01-05

    申请号：US17808084

    申请日：2022-06-21

    申请人： Samsung SDI Co., Ltd.

    发明人： Gun Gue PARK ,  Hyun Ki JUNG

    IPC分类号： H01M50/152 ,  H01M50/533 ,  H01M50/107 ,  H01M10/0525 ,  H01M50/538

    摘要： A secondary battery including a cylindrical can, an electrode assembly in the cylindrical can and including a plurality of first substrate tabs extending from one side of the electrode assembly along a longitudinal direction of the cylindrical can, and a plurality of second substrate tabs extending from an opposite side of the electrode assembly along the longitudinal direction of the cylindrical can; a cap assembly for sealing the cylindrical can; a first current collector plate electrically connecting the plurality of first substrate tabs to the cylindrical can; and a second current collector plate insulated from the cylindrical can and electrically connecting the plurality of second substrate tabs to the cap assembly.

    CYLINDRICAL SECONDARY BATTERY
    10.
    发明公开
    CYLINDRICAL SECONDARY BATTERY 审中-公开

    公开(公告)号：US20240356178A1

    公开(公告)日：2024-10-24

    申请号：US18640986

    申请日：2024-04-19

    申请人： SAMSUNG SDI CO., LTD.

    发明人： Gun Gue PARK ,  Sung Gwi KO ,  Hyun Ki JUNG ,  Yoon Sun YOO ,  Gwan Hyeon YOO ,  Myung Seob KIM ,  Mun Sung KIM ,  Woo Tae JUN

    IPC分类号： H01M50/567 ,  H01M50/548

    CPC分类号： H01M50/567 ,  H01M50/548

    摘要： A cylindrical secondary battery includes a can and a terminal part including: a first terminal outside of the can; and a second terminal coupled to a terminal hole of the can, arranged inside and outside of the can, and riveted to the first terminal from an outside of the can. According to embodiments of the present disclosure, plastic deformation of a rivet terminal occurs outside of a can, and there is no limitation on the shape of the rivet terminal inside the can. In addition, the rivet terminal may be processed regardless of a size or height of the can, and there is no interference with the can, and a processing time may be reduced.