公开(公告)号：US20210119297A1

公开(公告)日：2021-04-22

申请号：US17135918

申请日：2020-12-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Dongyang SHI ,  Zhenhua LI ,  Haizu JIN ,  Ning CHEN ,  Fei HU ,  Yuanbao CHEN ,  Rui YANG

IPC: H01M50/271 ,  H01M50/296 ,  H01M50/593 ,  H01M50/204 ,  H01M50/249 ,  H01M10/0525 ,  H01M10/0587 ,  H01M50/342 ,  B60L50/64

Abstract: Disclosed are a secondary battery, a battery module and an electric vehicle. The secondary battery includes an electrode assembly, a housing and a top cover assembly. The housing has an accommodating chamber, the accommodating chamber having an opening, and the electrode assembly being accommodated in the accommodating chamber. 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, a first electrode terminal and a second electrode terminal, the top cover plate being connected to the housing and located on a side of the electrode assembly in the axial direction, and the first electrode terminal and the second electrode terminal both protruding from the top cover plate and being electrically connected to the electrode assembly.

公开(公告)号：US20230352778A1

公开(公告)日：2023-11-02

申请号：US18350029

申请日：2023-07-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenqi ZHU ,  Yuqian WEN ,  Rui YANG

IPC: H01M50/186 ,  H01M50/578 ,  H01M50/593 ,  H01M10/04 ,  H01M50/152 ,  H01M50/559

CPC classification number: H01M50/152 ,  H01M10/04 ,  H01M50/186 ,  H01M50/559 ,  H01M50/578 ,  H01M50/593 ,  H01M2220/20

Abstract: This application discloses a battery cell, a battery, an electrical device, and a method and equipment for manufacturing a battery cell. The battery cell includes a housing, an end cap, and an electrode terminal. An opening is made on the housing. The end cap covers the opening and is seamed to the housing. The electrode terminal is disposed on the end cap. A reinforcing portion is disposed on the end cap. A projection of the electrode terminal on the end cap does not overlap the reinforcing portion. The technical solution provided herein can solve a battery safety problem caused by an increased internal pressure during the use of the battery, and improve the lifespan of the battery.

公开(公告)号：US20200212407A1

公开(公告)日：2020-07-02

申请号：US16424058

申请日：2019-05-28

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yuanbao CHEN ,  Rui YANG ,  Dongyang SHI ,  Ning CHEN ,  Fei HU ,  Zhenhua LI

IPC: H01M2/26 ,  H01M2/10 ,  H01M10/04

Abstract: The disclosure relates to a secondary battery and a battery module. The secondary battery comprises: a case comprising a receiving hole having an opening; a cap assembly sealingly connected with the case to close the opening; an electrode assembly disposed in the receiving hole, wherein the electrode assembly comprises two end surfaces opposite to each other in a first direction perpendicular to an axial direction of the receiving hole and tabs extending from respective end surfaces, and the electrode assembly comprises two or more electrode units which are stacked in the axial direction; and a current collecting unit comprising a first sheet and a first current collecting sheet connected to the first sheet, wherein both the first sheet and the first current collecting sheet extend in the axial direction, and the tab is bent with respect to the first direction and is electrically connected to the first current collecting sheet.

公开(公告)号：US20240322404A1

公开(公告)日：2024-09-26

申请号：US18671974

申请日：2024-05-22

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yuyong LEI ,  Zhijun GUO ,  Peng WANG ,  Rui YANG

IPC: H01M50/586 ,  H01M50/103 ,  H01M50/54

CPC classification number: H01M50/586 ,  H01M50/103 ,  H01M50/54

Abstract: A battery cell includes a housing, an electrode assembly, and an isolation member. The housing is provided with an electrode lead-out member. The electrode assembly is accommodated in the housing, where the electrode assembly includes a body portion and a tab led out of an end face of the body portion. At least a portion of the isolation member is disposed between the electrode lead-out member and the end face of the body portion, where the isolation member is provided with a channel, and the tab passes through the channel and is electrically connected to the electrode lead-out member.

公开(公告)号：US20210119292A1

公开(公告)日：2021-04-22

申请号：US17137172

申请日：2020-12-29

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Haizu JIN ,  Fei HU ,  Zhenhua LI ,  Dongyang SHI ,  Rui YANG ,  Yuqun ZENG ,  Yongshou LIN

IPC: H01M50/20 ,  H01M50/15 ,  H01M50/147

Abstract: The present disclosure provides a battery module and a battery pack. The battery pack comprises a box and a battery module, the battery module is accommodated in the box. The battery module comprises batteries sequentially arranged in a first direction. The battery comprises an electrode assembly, a case and a cap assembly, the electrode assembly is received in the case, and the cap assembly is connected with the case. The case comprises two first side walls, and the two first side walls are respectively positioned at two sides of the electrode assembly in the first direction. The first side walls of two adjacent batteries face each other. An area of the first side wall is defined as S1, a distance between the electrode assemblies of two adjacent batteries in the first direction is defined as D, S1 and D satisfying a relationship: 1.2×10−5 mm−1≤D/S1≤500×10−5 mm−1.

公开(公告)号：US20210119287A1

公开(公告)日：2021-04-22

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: H01M50/147 ,  H01M50/572 ,  H01M50/204 ,  H01M50/538 ,  H01M50/54 ,  H01M10/04

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.