公开(公告)号：US20230411744A1

公开(公告)日：2023-12-21

申请号：US18237902

申请日：2023-08-25

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Fenggang Zhao ,  Yuqun Zheng ,  Jian Guo ,  Quankun LI ,  Peng Wang

IPC: H01M50/148 ,  H01M50/55 ,  H01M50/553 ,  H01M50/176 ,  H01M50/593 ,  H01M50/588

CPC classification number: H01M50/148 ,  H01M50/55 ,  H01M50/588 ,  H01M50/176 ,  H01M50/593 ,  H01M50/553

Abstract: The present disclosure relates to a cap assembly and a secondary battery. The cap assembly includes a cap plate provided with an electrode lead-out hole; an electrode terminal, covering the electrode lead-out hole and including a main body, wherein the main body is provided with a recess on a side wall; an isolating member including a receiving portion, wherein the main body is received in the receiving portion; and a protrusion, connected to an inner wall of the isolating member and extending towards an axis of the electrode lead-out hole, wherein the protrusion is received in the recess so as to prevent the main body from rotating relative to the isolating member. The cap assembly according to the embodiments of the present application can improve an overcurrent capacity and stability of the electrode terminal.

公开(公告)号：US11848456B2

公开(公告)日：2023-12-19

申请号：US17130737

申请日：2020-12-22

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yu Tang ,  Yanbo Chen ,  Zhichao Wang ,  Yongguang Wang ,  Peng Wang ,  Kaijie You ,  Xingdi Chen

IPC: H01M50/209 ,  H01M50/249 ,  H01M50/591 ,  H01M50/553

CPC classification number: H01M50/209 ,  H01M50/249 ,  H01M50/553 ,  H01M50/591 ,  H01M2220/20

Abstract: This application discloses a battery pack and a vehicle, including: a case assembly, including an accommodating cavity; a battery module, disposed in the accommodating cavity, wherein the battery module includes a battery cell assembly, where the battery cell assembly includes an output current collector and a plurality of battery cells arranged side by side along a first direction of the battery pack, and the output current collector is configured to output electric energy of the battery cell assembly; and an end plate assembly, including a body plate and a protective cover, where the body plate is located at an end of the battery cell assembly along the first direction, the protective cover is rotatably connected to the body plate, and at least a part of the output current collector is located between the body plate and the protective cover.

公开(公告)号：US20230395958A1

公开(公告)日：2023-12-07

申请号：US18234496

申请日：2023-08-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qichang Cai ,  Chengyou Xing ,  Libin Zhong ,  Wenwei Chen ,  Quankun Li ,  Peng Wang

IPC: H01M50/645 ,  H01M50/186 ,  H01M50/148

CPC classification number: H01M50/645 ,  H01M50/186 ,  H01M50/148 ,  H01M2220/20 ,  H01M50/60

Abstract: The present application provides an end cover assembly, a secondary battery, a battery module, a device, a liquid-injection method and a device thereof. The end cover assembly for the secondary battery includes: an end cover, provided with a through hole for injecting electrolyte, and including a connecting portion; a sealing assembly, configured to seal the through hole; a locking-fixing member, configured to be movable relative to the connecting portion in a radial direction of the through hole, so as to realize switching between a locked state and an unlocked state of the locking-fixing member and the connecting portion. In the locked state, the locking-fixing member presses against the sealing assembly to restrict the end cover to be separated from the sealing assembly; in the unlocked state, the end cover and the sealing assembly are separable to allow electrolyte to be injected from the through hole.

公开(公告)号：US11831028B2

公开(公告)日：2023-11-28

申请号：US16965290

申请日：2018-04-17

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Jie Zhang ,  Zhijun Guo ,  Peng Wang ,  Guowei Li ,  Taosheng Zhu

IPC: H01M50/147 ,  H01M50/559 ,  H01M50/548 ,  H01M50/16 ,  H01M50/533 ,  H01M50/179

CPC classification number: H01M50/147 ,  H01M50/16 ,  H01M50/179 ,  H01M50/533 ,  H01M50/548 ,  H01M50/559 ,  H01M2220/20

Abstract: A secondary battery including: a case including an opening; a top cover assembly including a top cover plate covering the opening and an electrode terminal, the top cover plate including an electrode lead-out hole corresponding to the electrode terminal; an electrode assembly received in the case and including a main body and a tab, the tab being bent relative to a thickness direction of the top cover plate to form a bent portion; and a current collecting wiring board disposed between the top cover plate and the main body and including a first connection portion, a second connection portion, and a transition portion, the first connection portion and the second connection portion extending along a width direction of the top cover plate and being provided opposite to each other, the first connection portion being connected with the electrode terminal, and the second connection portion being connected with the bent portion.

公开(公告)号：US11777162B2

公开(公告)日：2023-10-03

申请号：US16976752

申请日：2019-09-12

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Fenggang Zhao ,  Yuqun Zeng ,  Jian Guo ,  Quankun Li ,  Peng Wang

IPC: H01M50/148 ,  H01M50/55 ,  H01M50/553 ,  H01M50/176 ,  H01M50/593 ,  H01M50/588

CPC classification number: H01M50/148 ,  H01M50/176 ,  H01M50/55 ,  H01M50/553 ,  H01M50/588 ,  H01M50/593

Abstract: The present disclosure relates to a cap assembly and a secondary battery. The cap assembly includes a cap plate provided with an electrode lead-out hole; an electrode terminal, covering the electrode lead-out hole and including a main body, wherein the main body is provided with a recess on a side wall; an isolating member including a receiving portion, wherein the main body is received in the receiving portion; and a protrusion, connected to an inner wall of the isolating member and extending towards an axis of the electrode lead-out hole, wherein the protrusion is received in the recess so as to prevent the main body from rotating relative to the isolating member. The cap assembly according to the embodiments of the present application can improve an overcurrent capacity and stability of the electrode terminal.

公开(公告)号：US11715867B2

公开(公告)日：2023-08-01

申请号：US17113585

申请日：2020-12-07

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Ningsheng Wu ,  Chengyou Xing ,  Yuanbao Chen ,  Peng Wang ,  Quankun Li

IPC: H01M50/591 ,  H01M50/148 ,  H01M50/547 ,  H01M50/552 ,  H01M50/588 ,  H01M50/593

CPC classification number: H01M50/591 ,  H01M50/148 ,  H01M50/547 ,  H01M50/552 ,  H01M50/588 ,  H01M50/593 ,  H01M2220/20

Abstract: The embodiments of the application provides an end cover assembly, a battery cell, a battery module and a device, the end cover assembly is used for the battery cell, the end cover assembly includes an end cover; an electrode terminal disposed on the end cover; an insulating member for insulating the electrode terminal and the end cover and disposed to surround the electrode terminal; wherein the insulating member abuts the electrode terminal, at least one of the insulating member and the electrode terminal is provided with a stress relief groove, the stress relief groove is configured to absorb stress generated by the electrode terminal's abutting the insulating member.

公开(公告)号：US20230238674A1

公开(公告)日：2023-07-27

申请号：US18120239

申请日：2023-03-10

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhi Wang ,  Feng Qin ,  Zhanyu Sun ,  Peng Wang ,  Hongye Ji

IPC: H01M50/636 ,  H01M50/548 ,  H01M50/566 ,  H01M10/04

CPC classification number: H01M50/636 ,  H01M50/548 ,  H01M50/566 ,  H01M10/0422 ,  H01M2220/20

Abstract: The present application relates to a battery, a method for manufacturing a battery, and a power consuming device. The battery includes at least two battery cells, wherein each of the battery cells includes electrode terminals arranged at end portions of two sides of the battery cell in a lengthwise direction, wherein a filling port for filling an electrolyte is provided in the electrode terminal on one side in the lengthwise direction of the battery cell, and the electrode terminals of the two battery cells are oppositely arranged in the lengthwise direction of the battery cells and are welded together to seal the filling ports. According to the battery of the present application, the filling port is provided in the electrode terminal, and the filling port does not occupy a space of an end cap, such that the size of the electrode terminal may be increased, thereby increasing the overcurrent area of the electrode terminal. Moreover, the entire battery is sealed directly by means of the electrode terminals without an additional sealing procedure, thereby reducing the cost and improving the production efficiency.

公开(公告)号：US11695190B2

公开(公告)日：2023-07-04

申请号：US17388039

申请日：2021-07-29

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yuyong Lei ,  Chengyou Xing ,  Peng Wang

IPC: H01M50/54 ,  H01M50/176 ,  H01M50/147 ,  H01M50/528 ,  H01M50/543 ,  H01M50/533 ,  H01M10/04 ,  H01M50/538 ,  H01M50/553 ,  H01M50/15

CPC classification number: H01M50/54 ,  H01M50/147 ,  H01M50/176 ,  H01M50/528 ,  H01M50/533 ,  H01M50/543 ,  H01M10/0431 ,  H01M50/15 ,  H01M50/538 ,  H01M50/553 ,  Y02E60/10 ,  Y02P70/50

Abstract: The present application provides a secondary battery, which includes a first electrode assembly, a second electrode assembly, a case, and a top cap assembly. The top cap assembly includes a top cap plate and a first electrode terminal, the top cap plate is connected to the case, and the first electrode terminal is arranged on the top cap plate. The first electrode assembly includes a first body and first tabs extending from the first body, and the first tabs are multiple and stacked. The second electrode assembly includes a second body and second tabs extending from the second body, and the second tabs are multiple and stacked. An end of each of the second tabs that is away from the second body is a second end portion. Each of the first tabs includes a first connecting portion extending beyond the second end portion.

公开(公告)号：US20230198054A1

公开(公告)日：2023-06-22

申请号：US18167083

申请日：2023-02-10

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenwei Chen ,  Wenlin Zhou ,  Xiangyan Bu ,  Xinxiang Chen ,  Peng Wang ,  Haizu Jin

IPC: H01M50/103 ,  H01M50/15 ,  H01M50/176 ,  H01M50/531 ,  H01M50/55

CPC classification number: H01M50/103 ,  H01M50/15 ,  H01M50/176 ,  H01M50/531 ,  H01M50/55 ,  H01M2220/20

Abstract: In some embodiments, the battery cell includes a shell, including an opening; an electrode unit, accommodated in the shell, the electrode unit including a main body portion and a tab portion protruding from the main body portion; a cap assembly, for connecting with the shell, and covering and closing the opening; and a first insulating member, accommodated in the shell and adapted to isolate at least part of the main body portion from the shell, the first insulating member including a first insulating plate, and the first insulating plate being disposed on a side of the main body portion facing the cap assembly and being attached to the main body portion. The first insulating member can insulate at least part of the main body portion from the shell.

公开(公告)号：US20230170567A1

公开(公告)日：2023-06-01

申请号：US18048449

申请日：2022-10-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yu Tang ,  Xiayi Wu ,  Zeliang Yang ,  Zhenhua Li ,  Peng Wang

IPC: H01M50/204 ,  H01M10/04 ,  H01M50/325 ,  H01M50/262 ,  H01M50/242

CPC classification number: H01M50/204 ,  H01M10/0413 ,  H01M10/0431 ,  H01M50/325 ,  H01M50/262 ,  H01M50/242 ,  H01M2220/20

Abstract: Various embodiments provide a battery and a method for manufacturing the battery, an apparatus of manufacturing the battery and an electricity-consuming device. In some embodiments, the battery includes a battery cell; a case assembly configured to accommodate the battery cell and including a first portion, in which the first portion is arranged at least one side of the battery cell in a first direction; and a first bonding member, in which at least part of the first bonding member is filled between the first portion and the battery cell and bonds the first portion and the battery cell. A first gap is formed between the first portion and the battery cell, and the first gap is configured to release an expansion stress when the battery cell expands. The solutions provided by the embodiments of the present disclosure can improve the energy density and safety of the battery, and prolong the service life of the battery.