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公开(公告)号：US20210328313A1
公开(公告)日：2021-10-21
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
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.
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公开(公告)号：US20210313661A1
公开(公告)日：2021-10-07
申请号：US17352352
申请日：2021-06-20
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Yuanbao CHEN , Rui Yang , Haizu Jin , Dongyang Shi , Ning Chen , Quankun Li
IPC: H01M50/538 , H01M50/209 , H01M50/186
Abstract: The present application relates to a secondary battery and a battery module. The secondary battery comprises: a casing, which is provided with an accommodating hole with an opening; a top cover assembly, which is in sealed connection with the casing to close the opening; an electrode assembly, which is arranged in the accommodating hole, and comprises two end faces opposite to a first direction perpendicular to an axial direction of the accommodating hole, and tabs extending from the end faces, the electrode assembly comprises two or more electrode units, wherein two or more electrode units are stacked in the axial direction, and in a second direction perpendicular to the axial direction and the first direction, the size of the tabs is smaller than that of the end faces; and a current collector, which comprises a body portion.
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公开(公告)号：US10608232B2
公开(公告)日：2020-03-31
申请号：US15894779
申请日：2018-02-12
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Quankun Li , Peng Wang , Taosheng Zhu , Baisong Chen
Abstract: The present disclosure provides a secondary battery and a battery module. The secondary battery includes: a shell having an opening; an electrode assembly including a first electrode plate, a second electrode plate, and a separator; a cap assembly including a cap plate and a first electrode terminal; a lower insulator located at a side of the cap plate away from the terminal board; and a wiring board including a main body portion and an extension portion, wherein the main body portion is located at a side of the lower insulator away from the cap plate and connected to the first electrode plate, the extension portion extends into the electrode lead-out hole and connected to the first electrode terminal, the first electrode plate is electrically connected to the first electrode terminal through the wiring board, and the first electrode terminal does not extend beyond a lower surface of the lower insulator.
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公开(公告)号：US10305086B2
公开(公告)日：2019-05-28
申请号：US15394629
申请日：2016-12-29
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Quankun Li , Peng Wang , Pinghua Deng , Lingbo Zhu , Jian Guo
Abstract: This application provides a top cover of a power battery and a power battery, the top cover includes a top cover sheet, a first electrode unit and a second electrode unit, the first electrode unit includes a turning sheet, an insulating piece and a current cutting-off structure, the current cutting-off structure is fixed in radial projection range of an assembling hole and is electrically connected with the top cover sheet, the turning sheet is fixed at an underneath of the top cover sheet through the insulating piece, the turning sheet is electrically connected with the top cover sheet merely through the current cutting-off structure, and the turning sheet is capable of turning and breaking the current cutting-off structure when an internal pressure of the power battery exceeds a reference pressure, so as to cut off an electrical connection of the current cutting-off structure with the top cover sheet.
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公开(公告)号：US20190067663A1
公开(公告)日：2019-02-28
申请号：US15894779
申请日：2018-02-12
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Quankun Li , Peng Wang , Taosheng Zhu , Baisong Chen
Abstract: The present disclosure provides a secondary battery and a battery module. The secondary battery includes: a shell having an opening; an electrode assembly including a first electrode plate, a second electrode plate, and a separator; a cap assembly including a cap plate and a first electrode terminal; a lower insulator located at a side of the cap plate away from the terminal board; and a wiring board including a main body portion and an extension portion, wherein the main body portion is located at a side of the lower insulator away from the cap plate and connected to the first electrode plate, the extension portion extends into the electrode lead-out hole and connected to the first electrode terminal, the first electrode plate is electrically connected to the first electrode terminal through the wiring board, and the first electrode terminal does not extend beyond a lower surface of the lower insulator.
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Patent Agency Ranking
公开(公告)号：US10153476B2
公开(公告)日：2018-12-11
申请号：US15258686
申请日：2016-09-07
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Jian Guo , Quankun Li , Pinghua Deng , Peng Wang , Lingbo Zhu
IPC: H01M2/26 , H01M10/052 , H01M2/22 , H01M2/24 , H01M2/28 , H01M10/0525
Abstract: The present application relates to an electrode tab pad plate, the electrode tab pad plate is of a fork shape, including a joint part and two first fork feet, the two first fork feet are arranged in parallel, and a first gap is provided between the two first fork feet, both the first fork feet are connected with the joint part. The electrode tab pad plate provided by the present application, through gathering the electrode tabs at inner sides of the electrode tab pad plate, so that the electrode tabs are gathered toward the direction away from the battery housing, so as to guarantee the safety performance of the Li-ion battery, since the space occupied by the electrode tab pad plate is small, which facilitates the improvement of the cell capacity, thereby improving the performance of the battery.
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公开(公告)号：US20170352845A1
公开(公告)日：2017-12-07
申请号：US15615062
申请日：2017-06-06
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Quankun Li , Jian Guo , Peng Wang , Pinghua Deng , Lingbo Zhu
CPC classification number: H01M2/0417 , H01M2/0212 , H01M2/0277 , H01M2/08 , H01M2/1229 , H01M2/1241 , H01M2/345
Abstract: Provided is a top cover for power battery, including a top cover plate, a first electrode unit including a connecting plate, a deformable plate, an insulating piece and a current interrupt plate, and a second electrode unit, insulating piece, an assembling hole is formed in the top cover plate, the current interrupt plate is in the assembling hole and electrically connected with the top cover plate, the connecting plate is insulated from the top cover plate through the insulating piece, an accommodating chamber facing to the assembling hole is formed in the connecting plate, the deformable plate is attached to the connecting plate and covers the accommodating chamber, the second electrode unit is electrically insulated from the top cover plate, and the deformable plate configured to uncouple from the current interrupt plate when internal pressure of power battery goes beyond reference pressure.
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公开(公告)号：US20250105476A1
公开(公告)日：2025-03-27
申请号：US18964698
申请日：2024-12-02
Applicant: Jiangsu Contemporary Amperex Technology Limited , CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Haibo Ke , Quankun Li
IPC: H01M50/583 , B60L3/00 , B60L50/64 , H01M50/103 , H01M50/533 , H01M50/55
Abstract: Provided are an adapting member, a battery cell, a battery, and an electric apparatus, so as to improve performance of the battery cell. An adapter includes a first connecting portion, a second connecting portion, and an overload protection portion. The first connecting portion is configured to be electrically connected to an electrode terminal, the second connecting portion is configured to be electrically connected to a tab, the overload protection portion is disposed between the first connecting portion and the second connecting portion, and the second connecting portion includes a tab connecting surface for connecting the tab. The blocking member is disposed on a side of the adapter having the tab connecting surface and covers at least a portion of the overload protection portion, and the blocking member is configured to insulate and block direct electrical connection between the tab and the first connecting portion.
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公开(公告)号：US20250105410A1
公开(公告)日：2025-03-27
申请号：US18973126
申请日：2024-12-09
Applicant: Jiangsu Contemporary Amperex Technology Limited , CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Yongfeng Xie , Quankun Li , Wenlin Zhou , Wenzhong Liu , Liqin Wang
IPC: H01M50/176 , H01M50/15 , H01M50/188 , H01M50/536 , H01M50/557 , H01M50/593
Abstract: Provided an end cover assembly, a battery cell, a battery, and an electric apparatus. The end cover assembly in the embodiments of the present application includes: an end cover provided with a first through hole; and an electrode leading-out member including a connecting plate and a post terminal protruding from a surface of the connecting plate, at least part of the post terminal being disposed in the first through hole, and the connecting plate being located on one side of the end cover, where the connecting plate is connected to a tab of an electrode assembly. In the technical solutions of the embodiments of the present application, the electrode leading-out member is provided, which increases contact area between a post and a tab, expands overcurrent area between the post terminal and the connecting plate, reduces internal resistance, lowers temperature rise, and improves the safety performance of a battery cell.
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公开(公告)号：US20240413483A1
公开(公告)日：2024-12-12
申请号：US18808093
申请日：2024-08-19
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Liqin Wang , Quankun Li
Abstract: An end cover assembly, a battery, and an electric device are provided. The end cover assembly is applied to a battery and includes an end cover, a breather valve, and a protective patch. The end cover has a first side facing inside of the battery and a second side opposite the first side and includes a first channel in communication with the first side and the second side. The breather valve includes a gas-permeable membrane in gas communication with the first channel. The gas-permeable membrane includes a gas-permeable portion opened towards the second side of the end cover. The protective patch is provided on the second side of the end cover and covers the gas-permeable portion. The battery includes the end cover assembly. The electric device includes the battery.
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