公开(公告)号：US20240222826A1

公开(公告)日：2024-07-04

申请号：US18608743

申请日：2024-03-18

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hui GU ,  Linlin Zhu ,  Guanghao Zhu ,  Chao Liu ,  Wenjie Yu ,  Qingkui Chi ,  Haizu Jin

IPC: H01M50/636 ,  H01M10/04 ,  H01M50/103 ,  H01M50/538 ,  H01M50/578

CPC classification number: H01M50/636 ,  H01M10/0422 ,  H01M50/103 ,  H01M50/538 ,  H01M50/578 ,  H01M2220/20

Abstract: The present application relates to a battery cell and a manufacturing method and device thereof, a battery, and a power consumption apparatus, belonging to the field of battery manufacturing technologies. The battery cell includes: a shell with a first wall; an electrode assembly; and a first current collecting member, where the first wall has a first surface facing the first current collecting member, the first current collecting member has a second surface facing the first wall, one of the first surface and the second surface is provided with a protrusion and the other abuts against the protrusion to form a gap between the first wall and the first current collecting member; and the first current collecting member is provided with a first hole and a second hole, and the first hole is configured to be in communication with the second hole through the gap.

公开(公告)号：US11990592B2

公开(公告)日：2024-05-21

申请号：US17985851

申请日：2022-11-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiaofu Xu ,  Yonghuang Ye ,  Haizu Jin ,  Chengdu Liang ,  Wenwei Chen ,  Quanguo Li

IPC: H01M10/617 ,  H01M10/04 ,  H01M10/647 ,  H01M10/6556

CPC classification number: H01M10/617 ,  H01M10/04 ,  H01M10/647 ,  H01M10/6556 ,  H01M2220/20

Abstract: Embodiments of this application provide a battery, an apparatus using a battery, and a manufacturing method and a manufacturing device of battery. The battery includes a battery cell and a thermal management component. The battery cell has a side wall and a bottom wall that are connected to each other. The thermal management component is configured to accommodate fluid to regulate temperature of the battery cell, where an accommodating portion is provided on the thermal management component, and configured to accommodate the battery cell, and the accommodating portion is attached to the bottom wall and side wall of the battery cell, to enable heat transfer between the battery cell and the thermal management component. The battery cell in the battery provided in the embodiments of this application can dissipate heat efficiently.

公开(公告)号：US11984622B1

公开(公告)日：2024-05-14

申请号：US18412333

申请日：2024-01-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qingkui Chi ,  Tao Pu ,  Yang Zou ,  Wenjie Yu ,  Zhisheng Chai ,  Haizu Jin

IPC: H01M50/536 ,  H01M10/04 ,  H01M50/107 ,  H01M50/152 ,  H01M50/186 ,  H01M50/213 ,  H01M50/474

CPC classification number: H01M50/536 ,  H01M10/0404 ,  H01M10/0431 ,  H01M10/049 ,  H01M50/107 ,  H01M50/152 ,  H01M50/186 ,  H01M50/213 ,  H01M50/474

Abstract: A battery cell includes a shell, an end cover, an electrode assembly, and a current collector component. The shell has an opening, and the inner surface of the shell is provided with a first limit part in a protruding manner. The end cover covers the opening. The electrode assembly and the end cover are respectively located on both sides of the first limit part, and the electrode assembly has a tab on the side facing the end cover. The current collector component includes a body part and a connecting part, and the connecting part is connected to the first limit part. The body part includes a first welding region and a second welding region, the first welding region is located on the periphery of the second welding region, the first welding region and the second welding region are separated by the connection position between the connecting part and the body part.

公开(公告)号：US20230402684A1

公开(公告)日：2023-12-14

申请号：US18343767

申请日：2023-06-29

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Kun Fang ,  Zhijun Guo ,  Haizu Jin

IPC: H01M50/107 ,  H01M50/152 ,  H01M50/533 ,  H01M50/536 ,  H01M50/56 ,  H01M50/186 ,  H01M50/213 ,  H01M50/507

CPC classification number: H01M50/107 ,  H01M50/152 ,  H01M50/533 ,  H01M50/536 ,  H01M50/56 ,  H01M50/186 ,  H01M50/213 ,  H01M50/507 ,  H01M2220/20

Abstract: The present application provides a battery cell, a method and system for manufacturing the battery cell, a battery, and a power consuming device. The battery cell according to an embodiment of the present application comprises: an electrode assembly comprising a first tab, wherein the first tab is arranged around a central axis of the electrode assembly; a housing configured to accommodate the electrode assembly, wherein the housing comprises a barrel and a cover connected to the barrel, the barrel is arranged around a periphery of the electrode assembly, the cover is provided with an electrode lead-out hole, the central axis extends in a first direction and passes through the electrode lead-out hole, the first tab comprises a first annular portion, the first annular portion is arranged opposite to the cover.

公开(公告)号：US11682767B2

公开(公告)日：2023-06-20

申请号：US17866509

申请日：2022-07-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jianghui Lin ,  Yanjie Zhao ,  Xing Li ,  Haizu Jin

IPC: H01M4/62 ,  C08F10/14 ,  C08G61/10

CPC classification number: H01M4/622 ,  C08F10/14 ,  C08G61/10

Abstract: A binder includes a copolymer including a building block (I) and a building block (II)




The building block (I) is formed by copolymerizing a building block (i)





and a building block (ii)

公开(公告)号：US20230163296A1

公开(公告)日：2023-05-25

申请号：US18149672

申请日：2023-01-04

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Quanguo Li ,  Yonghuang Ye ,  Chengdu Liang ,  Haizu Jin ,  Qian Liu ,  Fajun Huang ,  Xiaofu Xu

IPC: H01M4/525 ,  H01M4/505 ,  H01M10/0525 ,  H01M10/054

CPC classification number: H01M4/525 ,  H01M4/505 ,  H01M10/0525 ,  H01M10/054

Abstract: A battery module, a battery pack, and an electric apparatus are provided. In some embodiments, the battery module includes a first type of cell and a second type of cell that are cells of different chemical systems, where the first type of cell includes n first cells, the second type of cell includes m second cells, n and m each are selected from an integer greater than 1, at least one of the first cells and at least one of the second cells are electrically connected in series, and the first cell and the second cell satisfy at least the following relationships: 0.08≤ΔRB/ΔRA≤3.50, and 0.10 mΩ/100 cycles≤ΔRA≤0.40 mΩ/100 cycles, where ΔRA is a discharge resistance growth rate of the first cell, and ΔRB is a discharge resistance growth rate of the second cell; and IMPB

公开(公告)号：US20220384918A1

公开(公告)日：2022-12-01

申请号：US17817998

申请日：2022-08-08

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Hu Xu ,  Xing Li ,  Miaomiao Ren ,  Haizu Jin

IPC: H01M50/538 ,  H01M10/0587

Abstract: An electrode assembly and related battery, device, manufacturing method, and manufacturing device are provided. In some embodiments, the electrode assembly includes: a first electrode plate and a second electrode plate that are of opposite polarities, where an active material region of the first electrode plate and an active material region of the second electrode plate are wound to form a body portion, a non-active material region of the first electrode plate or a non-active material region of the second electrode plate is wound to form a tab, and the tab includes a bend portion bent against the body portion; and a guide piece. At least a part of the guide piece is located in the bend portion, and the guide piece is configured to guide an electrolytic solution into an interior of the body portion.

公开(公告)号：US20220376371A1

公开(公告)日：2022-11-24

申请号：US17818001

申请日：2022-08-08

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Hu Xu ,  Xing Li ,  Haizu Jin ,  Shaojun Niu ,  Miaomiao Ren

IPC: H01M50/70 ,  H01M10/0587 ,  H01M10/0525 ,  H01M50/528 ,  H01M50/107 ,  H01M50/152 ,  H01M50/627

Abstract: An electrode assembly, a battery cell, a battery, a device, a manufacturing method, and a manufacturing device are provided. In some embodiments, the electrode assembly includes at least two electrode plates, including a first electrode plate and a second electrode plate that are of opposite polarities. The first electrode plate and the second electrode plate are wound around a winding axis to form a multilayer structure. The multilayer structure includes an accommodation cavity extending along a direction of the winding axis. The accommodation cavity is configured to accommodate an electrolytic solution. The electrode assembly further includes at least one guide path extending along a first direction. The first direction is a direction perpendicular to the winding axis. The guide path is configured to guide the electrolytic solution out of the accommodation cavity.

公开(公告)号：US11469481B2

公开(公告)日：2022-10-11

申请号：US16879920

申请日：2020-05-21

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Hu Xu ,  Youlei Lai ,  Yuanbao Chen ,  Miaomiao Ren ,  Donglai Zheng ,  Haizu Jin

IPC: H01M50/54 ,  H01M4/70 ,  H01M10/04

Abstract: A battery unit includes: an electrode assembly, including a main body portion, and a negative tab and a positive tab, which respectively extend out from both ends of the main body portion along the length direction; a negative terminal and a positive terminal, arranged at the top of the electrode assembly; a first current collector for electrically connecting the negative tab with the negative terminal; and a second current collector for electrically connecting the positive tab with the positive terminal. The first current collector includes a first guiding plate. The first guiding plate is of a flat plate structure, and the negative tab is bent to one side of the first guiding plate away from the main body portion and is connected with the first guiding plate.

公开(公告)号：US11245149B2

公开(公告)日：2022-02-08

申请号：US17138716

申请日：2020-12-30

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Dongyang Shi ,  Zhenhua Li ,  Ning Chen ,  Rui Yang ,  Haizu Jin ,  Fei Hu

IPC: H01M2/04 ,  H01M2/26 ,  H01M2/06 ,  H01M10/0525 ,  H01M50/147 ,  H01M50/538 ,  H01M50/54 ,  H01M50/572 ,  H01M50/204 ,  H01M10/04 ,  H01M50/16 ,  H01M50/164 ,  H01M50/15 ,  H01M50/176

Abstract: Disclosed are a secondary battery, a battery module and an electric vehicle. The battery module includes a plurality of secondary batteries arranged in sequence. The secondary battery includes an electrode assembly, a housing and a top cover assembly. The electrode assembly is accommodated in an accommodating chamber of the housing. The electrode assembly includes a plurality of electrode units, the plurality of electrode units being stacked in an axial direction of the accommodating chamber. The top cover assembly includes a top cover plate and an insulating member arranged on an inner side of the top cover plate, the top cover plate being connected to the housing, the insulating member being located on a side of the electrode assembly in the axial direction. A first buffer gap is provided between the insulating member and the top cover plate.