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公开(公告)号：US10804526B2
公开(公告)日：2020-10-13
申请号：US15971642
申请日：2018-05-04
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Xiang Li , Chengyou Xing , Peng Wang , Rulai Cai
Abstract: The present invention relates to the technical field of rechargeable batteries and, in particular, to an electrode member, an electrode assembly and a rechargeable battery. The electrode member of the present invention includes an electrode body. The electrode body includes an insulating base and a conductive layer disposed on a surface of the insulating base. The conductive layer has a first portion and a second portion extending from the first portion, the first portion is adapted to be coated with an active material and the second portion is uncoated with the active material. A portion of the insulating base corresponding to the second portion is provided with a first through-hole throughout a thickness direction.
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公开(公告)号：US10673056B2
公开(公告)日：2020-06-02
申请号：US15669936
申请日：2017-08-06
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Abstract: A secondary battery, including an electrode assembly, a positive terminal, a negative terminal, a top cover plate, a conductive plate and a contact plate, wherein the electrode assembly includes a positive electrode plate, a negative electrode plate and a separator provided therebetween, the positive electrode plate is electrically connected with the positive terminal, and the negative electrode plate is electrically connected with the negative terminal, the contact plate is attached to the negative terminal, the top cover plate is insulated from the negative terminal and is electrically connected with the positive terminal, the conductive plate is fixedly connected with the top cover plate, the contact plate is configured to deform under gas pressure to be in contact with the conductive plate when an internal pressure of the secondary battery exceeds a reference pressure.
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Patent Agency Ranking
公开(公告)号：US10553837B2
公开(公告)日：2020-02-04
申请号：US15599038
申请日：2017-05-18
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Wei Yang , Rulai Cai , Xiang Li , Xianfeng Yu
IPC: H01M2/06
Abstract: This application provides a secondary battery including an electrode assembly, a first terminal, a second terminal, a top cover plate and a contacting plate attached to the first terminal, the electrode assembly includes a first electrode, a second electrode and a separator between the first electrode and the second electrode, the first terminal is electrically connected with the first electrode, the second terminal is electrically connected with the second electrode, the top cover plate is insulated from the first terminal and is electrically connected with the second terminal, when internal pressure of the secondary battery exceeds reference pressure, the contacting plate deforms under the internal pressure and contacts the top cover plate, so as to form an electrical connecting path through the first electrode, the first terminal, the contacting plate, the top cover plate, the second terminal and the second electrode.
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公开(公告)号：US20190074486A1
公开(公告)日：2019-03-07
申请号：US15871463
申请日：2018-01-15
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Xiang Li , Rulai Cai , Xianfeng Yu , Peng Wang , Quankun Li
CPC classification number: H01M2/04 , H01M2/1241 , H01M2/30 , H01M2/345 , H01M10/02 , H01M2200/00
Abstract: Provided are a top cover assembly and a secondary battery containing the same. The top cover assembly includes a cover plate, and a first terminal assembly; the top cover plate includes a main body and a protrusion connected to the main body, the protrusion protrudes beyond an upper surface of the main body, an accommodation chamber is defined below the protrusion, the protrusion faces the accommodation chamber, the first terminal assembly includes a deformable plate, and the deformable plate is connected to the top cover plate and covers the accommodation chamber. Such solution can sufficiently utilize the space between the upper surface of the top cover plate and the upper surface of the second terminal assembly, improve the space utilization of the secondary battery, improve the deformation resistance of the top cover plate and the strength of the top cover plate, and keep the secondary battery safe.
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公开(公告)号：US11233244B2
公开(公告)日：2022-01-25
申请号：US16804179
申请日：2020-02-28
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Chengyou Xing , Xiang Li , Taosheng Zhu , Peng Wang , Yulian Zheng
IPC: H01M4/02 , H01M4/70 , H01M4/66 , H01M10/04 , H01M50/54 , H01M4/13 , H01M10/052 , H01M50/531
Abstract: The present disclosure relates to the technical field of rechargeable battery and, particularly, relates to an electrode member, an electrode assembly and a rechargeable battery. The electrode member includes an electrode body and a conduction structure, the electrode body comprises an insulation substrate and an conduction layer placed on a surface of the insulation substrate, the conduction layer includes a first portion and a second portion extending from the first portion, the first portion is coated with an active material while the second portion is not coated with the active material, and the conduction structure is connected to the second portion. After the electrode assembly is formed by winding or stacking of the electrode members, adjacent current guide portions are electrically connected to one another by the conduction structure, without being limited by the insulation substrate, so that the conductivity of the electrode member is effectively improved.
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公开(公告)号：US10665826B2
公开(公告)日：2020-05-26
申请号：US15871463
申请日：2018-01-15
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Xiang Li , Rulai Cai , Xianfeng Yu , Peng Wang , Quankun Li
Abstract: Provided are a top cover assembly and a secondary battery containing the same. The top cover assembly includes a cover plate, and a first terminal assembly; the top cover plate includes a main body and a protrusion connected to the main body, the protrusion protrudes beyond an upper surface of the main body, an accommodation chamber is defined below the protrusion, the protrusion faces the accommodation chamber, the first terminal assembly includes a deformable plate, and the deformable plate is connected to the top cover plate and covers the accommodation chamber. Such solution can sufficiently utilize the space between the upper surface of the top cover plate and the upper surface of the second terminal assembly, improve the space utilization of the secondary battery, improve the deformation resistance of the top cover plate and the strength of the top cover plate, and keep the secondary battery safe.
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公开(公告)号：US10651498B2
公开(公告)日：2020-05-12
申请号：US16167738
申请日：2018-10-23
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Xiang Li , Chengyou Xing , Peng Wang , Rulai Cai
Abstract: The present disclosure relates to technical field of energy storage devices, and in particular, to a secondary battery and a vehicle. The secondary battery includes a top cover plate, electrode terminals disposed on the top cover plate, at least one electrode assembly including a main body and a plurality of conductive portions extending from the main body. The plurality of conductive portions is stacked and forms a tab, and the main body is formed by winding a first electrode plate, a second electrode plate and a separator disposed between the first electrode plate and the second electrode plate. The secondary battery also includes connecting pieces for connecting the tab to the electrode terminal. The tabs extend from one side of the main body viewed in thickness direction and are bent with respect to height direction and is connected to the connecting piece.
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