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    Negative electrode for rechargeable lithium battery
    4.
    发明授权
    Negative electrode for rechargeable lithium battery 有权

    公开(公告)号：US12080874B2

    公开(公告)日：2024-09-03

    申请号：US17498861

    申请日：2021-10-12

    申请人： SAMSUNG SDI CO., LTD.

    发明人： Jinhyon Lee ,  Bokhyun Ka ,  Kyeuyoon Sheem ,  Soonho Ahn ,  Junkyu Lee

    IPC分类号： H01M4/133 ,  H01M4/1393 ,  H01M4/58 ,  H01M10/0525 ,  H01M4/02

    CPC分类号： H01M4/133 ,  H01M4/1393 ,  H01M4/58 ,  H01M10/0525 ,  H01M2004/027

    摘要： A negative electrode and a rechargeable lithium battery, the negative electrode including a current collector; and a negative active material layer on at least one surface of the current collector, the negative active material layer including a carbon negative active material and a conductive agent, wherein the conductive agent includes at least one of a fiber-shaped conductive agent having a average length of about 1 μm to about 200 μm and a particle-shaped conductive agent having a average long diameter of about 1 μm to about 20 μm, and a DD (Degree of Divergence) value defined by Equation 1 is about 24 or greater:

    DD (Degree of Divergence)=(Ia/Itotal)*100  [Equation 1]

    wherein, in Equation 1, Ia is a sum of peak intensities at non-planar angles measured by XRD using a CuKα ray, and Itotal is a sum of peak intensity at all angles measured by XRD using a CuKα ray.

    Secondary battery
    5.
    发明授权
    Secondary battery 有权

    公开(公告)号：US12080852B2

    公开(公告)日：2024-09-03

    申请号：US16967519

    申请日：2019-11-14

    申请人： SAMSUNG SDI CO., LTD.

    发明人： Kyoung Hwan Kim ,  Cheoul Whan Kim

    IPC分类号： H01M10/0583 ,  H01M10/052

    CPC分类号： H01M10/0583 ,  H01M10/052

    摘要： The present invention relates to a secondary battery capable of enhancing safety and test reliability. According to one embodiment, disclosed is a secondary battery comprising: an electrode assembly in which a first electrode plate and a second electrode plate are alternately stacked; and a case for accommodating the electrode assembly, wherein the first electrode plate includes an outer electrode plate located at the outermost part of the electrode assembly, and an inner electrode plate located inside the electrode assembly, and the outer electrode plate is smaller than the inner electrode plate and the second electrode plate.

    Battery pack
    8.
    发明授权
    Battery pack 有权

    公开(公告)号：US11962040B2

    公开(公告)日：2024-04-16

    申请号：US17565792

    申请日：2021-12-30

    申请人： SAMSUNG SDI CO., LTD.

    发明人： Hanjun Wang ,  Chanwoo Kang

    IPC分类号： H01M50/519 ,  H01M50/533

    CPC分类号： H01M50/519 ,  H01M50/533

    摘要： A battery pack includes a first cell, a second cell, and a third cell arranged along a first axis, the first cell including first tabs extending toward the second cell, the second cell including second tabs extending toward the first cell, and the third cell including third tabs extending toward the second cell, a first circuit body between the first cell and the second cell, a second circuit body between the second cell and the third cell, and a third circuit body connecting the first circuit body and the second circuit body, wherein at least one of the first through third circuit bodies includes a rigid circuit board, and at least another one of the first through third circuit bodies includes a flexible circuit board.