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104 条记录 (耗时 0.031 秒)

    BATTERY
    1.
    发明公开
    BATTERY 审中-公开

    公开(公告)号：EP4443581A1

    公开(公告)日：2024-10-09

    申请号：EP24166254.3

    申请日：2024-03-26

    申请人： Samsung SDI Co., Ltd.

    发明人： Park, Sanghun ,  Lim, Sungbin

    IPC分类号： H01M10/04 ,  H01M50/107 ,  H01M50/152 ,  H01M50/528 ,  H01M50/531 ,  H01M50/533 ,  H01M50/536 ,  H01M50/538 ,  H01M50/559 ,  H01M50/109 ,  H01M50/153 ,  H01M50/503 ,  H01M50/505 ,  H01M50/56

    CPC分类号： H01M10/0422 ,  H01M10/0431 ,  H01M50/107 ,  H01M50/152 ,  H01M50/528 ,  H01M50/531 ,  H01M50/533 ,  H01M50/536 ,  H01M50/538 ,  H01M50/559 ,  H01M50/20 ,  H01M50/202 ,  H01M50/242 ,  H01M50/109 ,  H01M50/153 ,  H01M50/56 ,  H01M50/503 ,  H01M50/505

    摘要： Provided is a battery. The battery includes a core cell including first and second surfaces opposite each other along a first axis, first and second electrode tabs respectively disposed on the first and second surfaces of the core cell, and first and second coupling parts respectively fixing the first and second electrode tabs on the first and second surfaces, respectively, wherein the first and second coupling parts are respectively formed along a concave arc shape toward the center position of the first and second surfaces. While forming a conductive connection to the electrode of the core cell and the electrode of the core cell, the position of the coupling part that intermediates the coupling between the electrode tabs forming the charge and discharge path of the core cell indicates the position as an appropriate position that is advantageous in the relatively flatness side surface and may improve weldability on the first and second surfaces where the first and second electrodes are formed. In addition, through the design of the shape of the coupling part designed in an arc shape extending to both sides centering on the curved position that may be exposed to external impact, by propagating an external impact along both sides of the curved position, the destruction of coupling parts may be prevented while preventing local stress concentration, and as a result, it is possible to increase the bonding strength between the core cell and the electrode tab. Thus, a battery may be provided, in which peeling off of an electrode tab lifted from a core cell due to an external impact may be prevented.

    ELECTROCHEMICAL APPARATUS AND ELECTRICAL DEVICE
    2.
    发明公开
    ELECTROCHEMICAL APPARATUS AND ELECTRICAL DEVICE 审中-实审

    公开(公告)号：EP4425621A1

    公开(公告)日：2024-09-04

    申请号：EP21961943.4

    申请日：2021-10-29

    申请人： Ningde Amperex Technology Limited

    发明人： SU, Shiwei ,  DENG, Daolin ,  YANG, Xingfu ,  CHEN, Wen

    IPC分类号： H01M10/04 ,  H01M50/531 ,  H01M50/533 ,  H01M50/538

    CPC分类号： Y02E60/10 ,  Y02P70/50 ,  H01M50/533 ,  H01M10/04 ,  H01M50/531 ,  H01M50/538

    摘要： This application relates to the field of energy storage technologies and particularly discloses an electrochemical apparatus and an electric device. The electrochemical apparatus includes a housing, an electrode assembly accommodated in the housing, a first tab, and a second tab. The housing includes a top wall, a side wall, and a bottom wall, where the top wall is provided with a first electrode. The electrode assembly includes a first electrode plate and a second electrode plate. The first tab is connected to the first electrode plate and the first electrode. The second tab is connected to the second electrode plate. When viewed in a direction perpendicular to the top wall, an included angle between a length direction of the first tab and a length direction of the second tab is denoted as θ, satisfying: 0° ≤ θ ≤ 60°. When the electrochemical apparatus is in a charging/discharging state, a current direction on the first tab is different from a current direction on the second tab, and a magnetic field generated by the first tab and a magnetic field generated by the second tab can at least partially cancel each other out, weakening a magnetic field generated by the electrochemical apparatus.

    ELECTRODE ASSEMBLY AND METHOD FOR MANUFACTURING SAME
    4.
    发明公开
    ELECTRODE ASSEMBLY AND METHOD FOR MANUFACTURING SAME 审中-实审

    公开(公告)号：EP4346003A3

    公开(公告)日：2024-08-07

    申请号：EP24157680.0

    申请日：2017-11-02

    申请人： LG Energy Solution, Ltd.

    发明人： KIM, Su Hyun ,  KIM, Jihyun

    IPC分类号： H01M10/04 ,  H01M10/0587 ,  H01M10/0525 ,  H01M50/538

    CPC分类号： H01M10/0431 ,  H01M10/0587 ,  H01M10/0525 ,  Y02E60/10 ,  H01M50/538 ,  Y02P70/50

    摘要： The present invention relates to an electrode assembly including a multi-tab in which tabs are capable of being aligned and a method for manufacturing the same.
    The method for manufacturing an electrode assembly according to the present invention includes a stacking step of repeatedly stacking a negative electrode, a separator, and a positive electrode so that the separator is stacked between the negative electrode including an electrode tab and the positive electrode including an electrode tab to form an electrode stack, an electrode tab coupling step of coupling the electrode tabs having at least two or more same polarities of the electrode tabs of the electrode stack to each other, and a winding step of winding the electrode stack.

    SECONDARY BATTERY WITH WELDED ELECTRODE ASSEMBLY
    5.
    发明公开
    SECONDARY BATTERY WITH WELDED ELECTRODE ASSEMBLY 审中-实审

    公开(公告)号：EP4366070A3

    公开(公告)日：2024-07-24

    申请号：EP23207261.1

    申请日：2023-11-01

    申请人： Samsung SDI Co., Ltd.

    发明人： Kim, Joong Hun ,  Cho, Chang Hun ,  Lee, Wook Su

    IPC分类号： H01M50/536 ,  H01M50/538 ,  H01M50/566

    CPC分类号： H01M50/536 ,  H01M50/538 ,  H01M50/566 ,  Y02E60/10

    摘要： A secondary battery (10,10') includes: a case (200, 300'); an electrode assembly (100, 100') in the case (200, 300') and comprising a first electrode plate (110) on which a first base tab (112, 120') is located at a first end in a longitudinal direction of the case (200, 300'), a second electrode plate (120) on which a second base tab (140') is located at a second end in the longitudinal direction of the case (200, 300'), and a separator (130) between the first electrode plate (110) and the second electrode plate (120); and a cap assembly (300) coupled to the case (200, 300'), and comprising a pair of collectors (330, 340) electrically connected to the first base tab (112, 120') and the second base tab (140'), respectively, wherein the first base tab (112, 120') and the second base tab (140') are laser welded to the pair of collectors (330, 340), respectively.

    CYLINDRICAL SECONDARY BATTERY
    6.
    发明公开
    CYLINDRICAL SECONDARY BATTERY 审中-实审

    公开(公告)号：EP4401181A1

    公开(公告)日：2024-07-17

    申请号：EP23215581.2

    申请日：2023-12-11

    申请人： Samsung SDI Co., Ltd.

    发明人： PARK, Seung Young ,  KIM, Gwi Jae ,  KIM, Hae Ju ,  CHOI, Woo Sung

    IPC分类号： H01M10/04 ,  H01M10/052 ,  H01M10/0587 ,  H01M50/528 ,  H01M50/531

    CPC分类号： H01M50/531 ,  H01M10/0422 ,  H01M10/0431 ,  H01M10/0587 ,  H01M10/052 ,  H01M50/528 ,  H01M50/538 ,  H01M50/536

    摘要： Embodiments relate to a cylindrical secondary battery (100) including a can (110) having a cylindrical shape and an open one end portion, an electrode assembly (120) which is wound in a cylindrical shape by stacking a first electrode plate (121) including a first electrode uncoated portion (121a), a separator (123), and a second electrode plate (122) including a second electrode uncoated portion (122a) disposed in a direction opposite to the first electrode uncoated portion (121a) and accommodated in the can (110), and a cap assembly (140) to close the open one end portion of the can (110) in a state in which the electrode assembly (120) is accommodated in the can (110), wherein the first electrode uncoated portion (121a) includes a first substrate tab (121c) which is partially cut and folded to protrude outward from the first electrode uncoated portion (121a), and the second electrode uncoated portion (122a) includes a second substrate tab (122c) which is partially cut and folded to protrude outward from the second electrode uncoated portion (122a).

    ROLLED CORE AND BATTERY
    10.
    发明公开
    ROLLED CORE AND BATTERY 审中-实审

    公开(公告)号：EP4369466A8

    公开(公告)日：2024-06-26

    申请号：EP23825593.9

    申请日：2023-07-10

    申请人： Zhuhai CosMX Battery Co., Ltd.

    发明人： ZHANG, Baohai ,  PENG, Chong ,  LI, Junyi

    IPC分类号： H01M10/0587 ,  H01M4/13 ,  H01M10/0525

    CPC分类号： H01M4/13 ,  H01M10/0525 ,  H01M10/0587 ,  Y02P70/50 ,  Y02E60/10 ,  H01M4/62 ,  H01M10/4235 ,  H01M2004/02720130101 ,  H01M10/0431 ,  H01M4/366 ,  H01M2004/02120130101 ,  H01M50/538

    摘要： The present application provides a rolled core and a battery, where the rolled core includes a positive electrode piece having a paste-removal portion of positive electrode piece, and a negative electrode piece including a negative current collector (10), a negative active material layer (20), and a gap filling body (30); the paste-removal portion of positive electrode piece is a missing part of the positive electrode piece relative to the negative electrode piece at a winding-start end of the rolled core; the negative current collector (10) includes a first side and a second side which are opposite to each other, and at least one of the first side and the second side is provided with a negative active material layer (20); the gap filling body (30) is arranged on one of the first side and the second side at a position corresponding to the winding-start end of the rolled core. The present application improves the flatness of the inner ring of the rolled core of the battery, reduces expansion deformation of the battery caused by uneven stress during cyclic expansion process, and reduces capacity degradation and battery failure caused by the edge precipitation of lithium, thereby improving battery usage effect.