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1. 发明公开

EP4379914A1 BATTERY, ELECTRIC DEVICE, AND METHOD AND DEVICE FOR PREPARING BATTERY 审中-实审
公开(公告)号：EP4379914A1
公开(公告)日：2024-06-05
申请号：EP21960442.8
申请日：2021-11-24
申请人： Contemporary Amperex Technology Co., Limited
发明人： XU, Hu
IPC分类号： H01M50/103
CPC分类号： Y02P70/50 , Y02E60/10 , H01M50/202 , H01M50/103 , H01M50/249 , H01M50/242 , H01M10/0525 , H01M10/04 , H01M10/058 , H01M10/0583 , H01M50/207 , H01M50/209 , H01M50/267 , H01M50/291 , H01M50/3425 , H01M10/653 , H01M50/548 , H01M10/0404 , H01M50/289 , H01M10/613
摘要： Embodiments of this application provide a battery, an electric apparatus, and a method and apparatus for manufacturing battery, so as to enhance stiffness, strength, and energy density of the battery. The battery includes a box; and at least two groups of battery cells accommodated in the box, where each group of battery cells includes a plurality of battery cells arranged along a first direction, the first direction being parallel to an upper cover or a bottom wall of the box, and the at least two groups of battery cells are stacked along a second direction, the second direction being perpendicular to the first direction. The battery cell is a polyhedral structure and includes a first wall and a second wall that are connected to each other, where the first wall is parallel to the first direction, the second wall is oblique to the first wall, and a cross section of the battery cell on a plane perpendicular to the first wall and the second wall is a parallelogram. Second walls of a first battery cell and a second battery cell that are adjacent to each other along the first direction are attached to each other. A connecting line of the centers of gravity of a third battery cell and a fourth battery cell that are adjacent to each other along the second direction is parallel to the second direction.

2. 发明公开

EP4280369A1 BATTERY CELL, BATTERY, ELECTRICAL APPARATUS, AND BATTERY PREPARATION METHOD AND APPARATUS 审中-实审
公开(公告)号：EP4280369A1
公开(公告)日：2023-11-22
申请号：EP21963640.4
申请日：2021-11-12
申请人： Contemporary Amperex Technology Co., Limited
发明人： XU, Hu
IPC分类号： H01M50/547
摘要： Embodiments of the present application provide a battery cell, a battery, a power consumption apparatus, a method for preparing a battery, and an apparatus for preparing a battery. A battery cell (20) includes: a housing (21), including a first wall (21a) and a second wall (21b) oppositely provided in a first direction (x); two electrode terminals (214), respectively located on the first wall (21a) and the second wall (21b), where projections of the two electrode terminals (214) on a plane perpendicular to the first direction (x) are staggered from each other. Through the technical solution, when the electrode terminal (214) is electrically connected with other electrical components (such as electrode terminals of other battery cells), other electrical components may be provided side by side with the electrode terminal (214) by using space perpendicular to the first direction (x), and other electrical components do not need to occupy additional space in the first direction (x), thereby saving space required to achieve an electrical connection of the battery cell (20), and increasing a space utilization rate of the battery cell (20) in the battery.

3. 发明公开

EP4277007A1 ELECTRODE ASSEMBLY AND MANUFACTURING METHOD AND APPARATUS, BATTERY CELL, BATTERY AND ELECTRIC DEVICE 审中-实审
公开(公告)号：EP4277007A1
公开(公告)日：2023-11-15
申请号：EP21965175.9
申请日：2021-11-26
申请人： Contemporary Amperex Technology Co., Limited
发明人： XU, Hu
IPC分类号： H01M50/50 , H01M10/0587
摘要： The embodiments of this disclosure provide an electrode assembly and manufacturing method and device, battery cell, battery, electric device, the electrode assembly is used for a battery cell (100) and includes: a first electrode sheet (1) and a second electrode sheet (2) of opposite polarities, wherein the first electrode sheet (1) and the second electrode sheet (2) both include a main body (11) and at least one tab group (12), the first electrode sheet (1) and the second electrode sheet (2) are winded around a winding axis (K) such that their respective main bodies (11) overlap to form a winding body (S), and after the main bodies (11) have been winded a plurality of electrode sheet layers (111) are formed along a radial direction of the winding main body (S); wherein, the tab group (12) includes a plurality of stacked tabs (12') which protrude from the main body (11), and at least two adjacent tabs (12') in the tab group (12) are separated by at least one electrode sheet layer (111) of same polarity in the radial direction.

4. 发明公开

EP4053960A1 ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY, AND METHOD AND DEVICE FOR MANUFACTURING ELECTRODE ASSEMBLY 有权转让
公开(公告)号：EP4053960A1
公开(公告)日：2022-09-07
申请号：EP21810882.7
申请日：2021-01-07
申请人： Contemporary Amperex Technology Co., Limited
发明人： JIN, Haizu , XU, Hu , DU, Xinxin , LI, Xing , LIANG, Chengdu , ZENG, Yuqun
IPC分类号： H01M10/0587 , H01M10/0525
摘要： Embodiments of the present application provide an electrode assembly, a battery cell, a battery, and a method and a device for manufacturing an electrode assembly, which belong to the technical field of batteries. Embodiments of the present application provide an electrode assembly including a first electrode plate and a second electrode plate. The first electrode plate and the second electrode plate are wound along a winding direction to form a winding structure, and the winding structure includes a bending region. The first electrode plate includes a first segment that exceeds a winding starting end of the second electrode plate, and at least a part of the first segment is configured to provide a support force to a part of the first electrode plate and the second electrode plate in the bending region and located at an outer side the first segment, making a structure of the first electrode plate and the second electrode plate more compact in the bending region. And a gap between the part of the first electrode plate in the bending region and the part of the second electrode plate in the bending region is not easy to be expanded by an external force and the occurrence of lithium plating is reduced.

5. 发明公开

EP4030537A1 SECONDARY BATTERY AND MANUFACTURING METHOD THEREFOR, BATTERY MODULE, AND APPARATUS 有权转让
公开(公告)号：EP4030537A1
公开(公告)日：2022-07-20
申请号：EP20935156.8
申请日：2020-05-09
申请人： Contemporary Amperex Technology Co., Limited
发明人： XU, Hu
IPC分类号： H01M50/147 , H01M50/169
摘要： The present application relates to a secondary battery and manufacturing method thereof, a battery module and an apparatus. The secondary battery includes an electrode assembly including a main body portion and a tab extending out from the main body portion; a current collecting member including a guiding section, the guiding section extending in a direction perpendicular to a length direction of the electrode assembly; a transition connecting piece, the transition connecting piece and the current collecting member being separately provided, the transition connecting piece including a current collecting portion and a fixing portion, the current collecting portion being adapted to connect with the tab to form a first connection region, the fixing portion being adapted to connect with the guiding section to form a second connection region, and respective projections of the first connection region and the second connection region on a plane perpendicular to the length direction do not overlap. The secondary battery of the present applicant can reduce the possibility of decrease of the current flowing capability of the tab.

6. 发明公开

EP3951957A1 ELECTRODE ASSEMBLIES, AND BATTERY, APPARATUS, MANUFACTURING METHOD AND MANUFACTURING APPARATUS RELATED THERETO 有权转让
公开(公告)号：EP3951957A1
公开(公告)日：2022-02-09
申请号：EP20808268.5
申请日：2020-06-02
申请人： Contemporary Amperex Technology Co., Limited
发明人： LIANG, Chengdu , XU, Hu , JIN, Haizu , ZENG, Yuqun
IPC分类号： H01M4/64 , H01M4/13 , H01M4/66 , H01M10/04 , H01M10/052 , H01M10/0587 , H01M50/446 , H01M50/572
摘要： The present application discloses an electrode assembly and a related battery, device, manufacturing method and manufacturing device, wherein, the electrode assembly includes: a plurality of first type of electrode plates and at least one second type of electrode plate which are arranged in a superimposing manner, the polarity of the first type of electrode plate is opposite to the polarity of the second type of electrode plate, the plurality of first type of electrode plates comprise a first electrode plate and a second electrode plate, wherein the first electrode plate comprises a first current collector, the second electrode plate comprises a second current collector, and the first current collector is different from the second current collector.

7. 发明公开

EP3940853A1 ELECTRODE ASSEMBLY, RELATED BATTERY AND APPARATUS THEREOF, AND MANUFACTURING METHOD AND MANUFACTURING APPARATUS THEREFOR 有权转让
公开(公告)号：EP3940853A1
公开(公告)日：2022-01-19
申请号：EP20810849.8
申请日：2020-06-02
申请人： Contemporary Amperex Technology Co., Limited
发明人： LIANG, Chengdu , XU, Hu , JIN, Haizu , ZENG, Yuqun
IPC分类号： H01M10/0587 , H01M10/0525 , H01M50/204 , H01M4/04 , H01M4/505 , H01M4/58 , H01M4/587 , H01M4/02
摘要： The present application discloses an electrode assembly and a related battery, device, manufacturing method and manufacturing device, wherein the electrode assembly includes: at least one positive electrode plate and at least one negative electrode plate, wherein the sum of the number of all the positive electrode plates and all the negative electrode plates is greater than or equal to 3; and the at least one positive electrode plate and at least one negative electrode plate are wound around the winding axis to form a winding structure, wherein in the winding structure, the positive electrode plate in at least one positive electrode plate and the negative electrode plate in at least negative electrode plate are arranged in a superimposing manner along a direction vertical to the winding axis, wherein each positive electrode plate in the at least one positive electrode plate includes a positive main body part, at least part of the area of the superimposing surface of the positive main body part is a positive active substance area, each negative electrode plate in the at least one negative electrode plate includes a negative main body part, at least part of the area of the superimposing surface of the negative main body part is the negative active substance area, and two ends, along the winding axis, of the negative active substance area both exceed corresponding ends of the adjacent positive active substance area.

8. 发明公开

EP4398384A1 BATTERY CELL AND BATTERY 审中-实审
公开(公告)号：EP4398384A1
公开(公告)日：2024-07-10
申请号：EP22922648.5
申请日：2022-01-26
申请人： Contemporary Amperex Technology Co., Limited
发明人： XU, Hu , NIU, Shaojun , JIN, Haizu , LI, Xing , ZHAO, Fenggang
IPC分类号： H01M50/102
CPC分类号： Y02E60/10 , H01M50/102
摘要： The present application relates to a battery cell (10, 20, 30, 40), including a shell (1) and further including three electrode assemblies (JR1, JR2, JR3) wound into cylinders, wherein the three electrode assemblies (JR1, JR2, JR3) are arranged in a row in the shell (1) in such a manner that axes of the three electrode assemblies (JR1, JR2, JR3) are parallel to one another, the shell (1) has a thickness middle surface connected to the axes of the three electrode assemblies (JR1, JR2, JR3), the thickness middle surface is in a V shape, the shell (1) has a first side surface (2) and a second side surface (2) both in an arcuate wavy shape, the first side surface (2) and the second side surface (2) are opposite each other relative to the thickness middle surface of the shell (1), and the three electrode assemblies (JR1, JR2, JR3) are arranged between the first side surface (2) and the second side surface (2). The present application further relates to a battery (100, 200, 300, 400, 500), including a plurality of the battery cells (10, 20, 30, 40) according to the present application. By means of such battery cells (10, 20, 30, 40), the number of the battery cells (10, 20, 30, 40) can be reduced in the battery (100, 200, 300, 400, 500), thereby reducing the number of connectors for connecting the battery cells (10, 20, 30, 40), and fully utilizing the structure space.

9. 发明公开

EP4391163A1 BATTERY CELL, BATTERY, AND POWERED DEVICE 审中-实审
公开(公告)号：EP4391163A1
公开(公告)日：2024-06-26
申请号：EP22926858.6
申请日：2022-12-07
申请人： Contemporary Amperex Technology Co., Limited
发明人： XU, Liangfan , ZHANG, Qianqian , XU, Hu , LI, Xing , NIU, Shaojun , JIN, Haizu
IPC分类号： H01M50/15 , H01M50/547 , H01M50/552 , H01M50/531
CPC分类号： H01M50/258 , H01M50/148 , H01M50/249 , H01M50/552 , H01M50/553 , H01M50/531 , H01M50/15 , H01M50/547 , H01M50/528 , Y02E60/10
摘要： This application provides a battery cell, a battery, and an electric device. The battery cell includes: an electrode assembly; a housing, where the housing has a first opening for accommodating the electrode assembly; an end cover configured to cover the first opening, where the end cover has a protruding structure, the protruding structure protrudes along a first direction away from the interior of the battery cell, and the first direction is a thickness direction of the end cover; and an electrode terminal, where the electrode terminal has a protruding portion protruding from the protruding structure along a second direction, and the second direction is perpendicular to the first direction. The battery cells are interconnected in the second direction through the protruding portions of the electrode terminals, which can enhance the strength of the connection between the battery cells, thereby reducing the number of cross beams or partitions to be provided between battery modules, and improving the utilization of space inside the battery.

10. 发明公开

EP4379913A1 BATTERY, ELECTRICAL DEVICE, AND METHOD AND DEVICE FOR PREPARING BATTERY 审中-实审
公开(公告)号：EP4379913A1
公开(公告)日：2024-06-05
申请号：EP21960384.2
申请日：2021-10-29
申请人： Contemporary Amperex Technology Co., Limited
发明人： XU, Hu
IPC分类号： H01M50/103 , H01M50/202
CPC分类号： Y02P70/50 , Y02E60/10 , H01M50/202 , H01M50/103 , H01M50/249 , H01M50/242 , H01M10/0525 , H01M10/04 , H01M10/058 , H01M10/0583 , H01M50/207 , H01M50/209 , H01M50/267 , H01M50/291 , H01M50/3425 , H01M10/653 , H01M50/548 , H01M10/0404 , H01M50/289 , H01M10/613
摘要： Embodiments of this application provide a battery (10), an electric apparatus, a method for preparing a battery, and an apparatus for preparing a battery, so as to enhance the stiffness and strength of the battery. The battery (10) includes a box (100); and a first battery cell group (200a) and a second battery cell group (200b) that are accommodated in the box (100), where the first battery cell (20a) and the second battery cell (20b) are polyhedral structures, a wall with a largest area of the first battery cell (20a) serves as a first wall (201a) of the first battery cell (20a), a wall with a largest area of the second battery cell (20b) serves as a second wall (202b) of the second battery cell (20b), the at least one first battery cell (20a) in the first battery cell group (200a) is arranged in a first direction (z), adjacent ones of the at least one first battery cell (20a) are mutually attached through first walls (201a) thereof, the at least one second battery cell (20b) in the second battery cell group (200b) is arranged in a second direction (y), adjacent ones of the at least one second battery cell (20b) are mutually attached through second walls (202b) thereof, and the first direction (z) is perpendicular to the second direction (y).

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