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21. 发明授权

EP3732740B1 COUVERCLE D'ELEMENT ELECTROCHIMIQUE A CONDUCTION THERMIQUE RENFORCEE 有权
公开(公告)号：EP3732740B1
公开(公告)日：2023-11-01
申请号：EP18836370.9
申请日：2018-12-21
发明人： NARBONNE, Alexandre , RIGOBERT, Gérard , BERLUREAU, Thierry , LEYKO, Matthieu
IPC分类号： H01M10/6553 , H01M10/6556 , H01M10/643 , H01M10/613 , H01M50/152 , H01M50/167 , H01M50/536 , H01M50/548 , H01M50/559 , H01M50/56

22. 发明公开

EP4266476A1 SECONDARY BATTERY 审中-实审
公开(公告)号：EP4266476A1
公开(公告)日：2023-10-25
申请号：EP23168912.6
申请日：2023-04-20
申请人： Samsung SDI Co., Ltd.
发明人： Guen, Min Hyung
IPC分类号： H01M50/533 , H01M50/536 , H01M50/54 , H01M10/052 , H01M10/0585 , H01M50/103 , H01M50/15 , H01M50/474 , H01M50/489 , H01M50/55
摘要： A secondary battery includes: an electrode assembly including an electrode uncoated portion protruding toward at least one side; a current collector plate electrically connected to the electrode uncoated portion of the electrode assembly; a case to accommodate the electrode assembly and the current collector plate; and a cap assembly to seal the case, and the current collector plate includes an upper coupling portion and a lower coupling portion coupled to the electrode uncoated portion, and a protrusion protruding toward the case between the upper coupling portion and the lower coupling portion.

23. 发明公开

EP4261927A1 BATTERY 审中-实审
公开(公告)号：EP4261927A1
公开(公告)日：2023-10-18
申请号：EP22791048.6
申请日：2022-04-20
申请人： Zhuhai CosMX Battery Co., Ltd.
发明人： ZHANG, Baohai , PENG, Chong , LI, Junyi
IPC分类号： H01M4/13 , H01M10/0525 , H01M10/0587 , H01M50/536
摘要： Disclosed is a battery, and the battery includes a jelly roll. The jelly roll includes a first electrode plate, a separator, and a second electrode plate that are wound, the separator is located between the first electrode plate and the second electrode plate which are adjacent to each other, the first electrode plate is provided with a first tab, and the second electrode plate is provided with a second tab; the first tab is close to a first bending portion of a first end of the jelly roll, the second tab is close to a second bending portion of a second end of the jelly roll, a winding tail end of the jelly roll covers the first bending portion, and the winding tail end of the jelly roll extends in a direction from the first bending portion to the second bending portion; and an outer side of the jelly roll includes a first outer adhesive paper, a region between a head of the second end of the jelly roll and the second tab directly faces a first portion of the jelly roll, and the first outer adhesive paper covers at least one side surface of the first portion. Because the first outer adhesive paper has a specific thickness, a thickness of the jelly roll at the first outer adhesive paper may be increased. Therefore, the battery provided in the embodiments resolves a technical problem that a surface flatness of a jelly roll structure in a lithium-ion battery is relatively poor.

24. 发明公开

EP4235945A3 BUTTON CELL AND ELECTRONIC DEVICE 审中-实审
公开(公告)号：EP4235945A3
公开(公告)日：2023-10-18
申请号：EP23177520.6
申请日：2020-12-28
申请人： Zhuhai CosMX Battery Co., Ltd.
发明人： PENG, Ning , XIE, Bin
IPC分类号： H01M10/04 , H01M50/109 , H01M50/153 , H01M50/183 , H01M50/536 , H01M50/627 , H01M50/166 , H01M50/559 , H01M50/636
摘要： The present disclosure provides a button cell and an electronic device. In the button cell, a conductive member covers an opening of a top cover, and the top cover is connected to the conductive member. A cell is placed in an accommodating cavity of a bottom shell. A first tab is welded to an inner bottom wall of the bottom shell, and then the top cover having the conductive member is connected to the bottom shell in a sealed manner, with a second tab on the cell being electrically connected to the conductive member. Finally, an electrolyte solution is injected into the accommodating cavity. After the electrolyte solution is injected, a sealing member covers the liquid injection port, and the sealing member is connected to the liquid injection port in a sealed manner.

25. 发明公开

EP4258454A1 ELECTROCHEMICAL APPARATUS AND ELECTRONIC DEVICE 审中-实审
公开(公告)号：EP4258454A1
公开(公告)日：2023-10-11
申请号：EP23166188.5
申请日：2023-03-31
申请人： Ningde Amperex Technology Ltd.
发明人： LI, Fangfang , DAI, Zhifang , HU, Xiaoming
IPC分类号： H01M50/533 , H01M50/534 , H01M50/536 , H01M50/538 , H01M50/176 , H01M50/178 , H01M50/548 , H01M10/0587 , H01M4/64
摘要： An electrochemical apparatus includes a housing (100) and an electrode assembly (200) accommodated in the housing (100). The electrode assembly (200) includes a first electrode plate (210), a second electrode plate (220), and a separator (230) wound together. The first electrode plate (210) includes a first current collector (211) having a first region (2111) and a second region (2112); and a first active material layer (212) disposed in the first region (2111). The second region (2112) is provided at an end of the first current collector (211) in a first direction X to form a first tab. The second electrode plate (220) includes a second current collector (221); at least two second tabs (222); and a second active material layer (223) disposed on the second current collector (221). The at least two second tabs (222) are connected to an end of the second current collector (221) facing away from the second region (2112) in a first direction X; The at least two second tabs (222) are spaced apart in a winding direction of the electrode assembly (200) and are integrally formed with the second current collector (221).

26. 发明公开

EP4254535A1 ELECTROCHEMICAL APPARATUS AND ELECTRONIC APPARATUS 审中-实审
公开(公告)号：EP4254535A1
公开(公告)日：2023-10-04
申请号：EP23163722.4
申请日：2023-03-23
申请人： DONGGUAN POWERAMP TECHNOLOGY LIMITED
发明人： LI, Weiwei , XIE, Jincang , FANG, Ye
IPC分类号： H01M4/04 , H01M10/0587 , H01M50/103 , H01M50/105 , H01M50/15 , H01M50/533 , H01M50/534 , H01M50/536 , H01M50/538 , H01M50/54 , H01M50/55
摘要： An electrochemical apparatus includes an electrode assembly, a first tab, and a second tab. The electrode assembly includes a first electrode plate and a second electrode plate. The first electrode plate includes a first current collector. The second electrode plate includes a second current collector and a plurality of conducting strips, the conducting strips protrude from the second current collector in a first direction, the plurality of conducting strips are stacked in a thickness direction of the electrode assembly to form a collecting portion. The first tab includes a first portion, a second portion, and a third portion connected in sequence, the first portion is connected to the first current collector, the second portion is located outside the first current collector and disposed in a bent shape, the third portion extends out of the housing. The second tab is connected to the collecting portion and extends out of the housing.

27. 发明公开

EP4216361A1 SECONDARY BATTERY 审中-实审
公开(公告)号：EP4216361A1
公开(公告)日：2023-07-26
申请号：EP23152651.8
申请日：2023-01-20
申请人： Samsung SDI Co., Ltd.
发明人： JUNG, Hyun Ki
IPC分类号： H01M50/536 , H01M50/107 , H01M50/548 , H01M50/179
摘要： The present disclosure relates to a secondary battery, and a technical problem to be solved is to prevent separation of a welding region between an electrode assembly and a current collector plate or separation of a welding region between a current collector plate and a can when vibration or impact is applied. To this end, disclosed is a secondary battery including: an electrode assembly; a case that accommodates the electrode assembly; a cap plate seals the case; and at least one current collector plate welded to at least one of between the electrode assembly and the case and between the electrode assembly and the cap plate, wherein at least one slit is formed in the current collector plate.

28. 发明授权

EP3920298B1 BUTTON CELL AND ELECTRONIC DEVICE 有权
公开(公告)号：EP3920298B1
公开(公告)日：2023-07-05
申请号：EP20217378.7
申请日：2020-12-28
发明人： PENG, Ning , XIE, Bin
IPC分类号： H01M10/04 , H01M50/166 , H01M50/109 , H01M50/153 , H01M50/183 , H01M50/536 , H01M50/627 , H01M50/636 , H01M50/559

29. 发明公开

EP4187664A1 BATTERY 审中-公开
公开(公告)号：EP4187664A1
公开(公告)日：2023-05-31
申请号：EP22209481.5
申请日：2022-11-24
申请人： Prime Planet Energy & Solutions, Inc.
发明人： YANASE, Shota , HOSOKAWA, Takashi , MATSUI, Yu , YAMADA, Tomoyuki
IPC分类号： H01M10/04 , H01M50/538 , H01M50/548 , H01M10/0587 , H01M50/536
摘要： A technology for obtaining a battery including a wound electrode body with high productivity is provided. In a preferred aspect of the battery disclosed herein, an average value of the shortest distances of the positive electrode tabs in the first region from one end to the tips in the protruding direction of the positive electrode tabs is equal to or less than an average value of the shortest distances of the positive electrode tabs in the second region. Further, a difference between the average value of the shortest distances of the positive electrode tabs in the first region and the average value of the shortest distances of the positive electrode tabs in the second region is smaller than the thickness of the electrode body.

30. 发明授权

EP3800718B1 SECONDARY BATTERY, DEVICE, AND MANUFACTURING METHOD FOR SECONDARY BATTERY 有权转让
公开(公告)号：EP3800718B1
公开(公告)日：2023-05-31
申请号：EP20823076.3
申请日：2020-04-24
发明人： CHEN, Lei
IPC分类号： H01M50/55 , H01M50/54 , H01M50/105 , H01M10/0585 , H01M10/0525 , H01M50/536

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