公开(公告)号：US20190221877A1

公开(公告)日：2019-07-18

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

IPC: H01M10/04 ,  H01M2/30 ,  H01M2/04

CPC classification number: H01M10/045 ,  H01M2/04 ,  H01M2/22 ,  H01M2/26 ,  H01M2/30 ,  H01M2220/20

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.

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

IPC: H01M2/34 ,  H01M2/06 ,  H01M2/30 ,  H01M2/26 ,  H01M2/04 ,  H01M2/12

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.

公开(公告)号：US20190115612A1

公开(公告)日：2019-04-18

申请号：US15974485

申请日：2018-05-08

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M10/04 ,  H01M2/08 ,  H01M2/04 ,  H01M2/02

Abstract: The present disclosure provides a battery cap assembly and a secondary battery. The battery cap assembly comprises a cap plate, a first electrode terminal and a first connecting piece. The cap plate is made of insulating material and includes a first terminal hole; the first electrode terminal is provided to the cap plate and extends into the first terminal hole; the first connecting piece is provided below the cap plate. The first connecting piece includes a first connecting portion connected with the first electrode terminal, an upper surface of the first connecting portion is attached to the cap plate. The secondary battery comprises an electrode assembly, a case and the battery cap assembly. The case receives the electrode assembly and has an opening. The cap plate is connected with the case, the first connecting portion of the first connecting piece is electrically connected with the first electrode plate.

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

IPC: H01M2/22 ,  H01M10/42 ,  H01M2/06 ,  H01M2/04 ,  H01M2/20

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.

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.

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

IPC: H01M2/04 ,  H01M2/02 ,  H01M2/08 ,  H01M2/12

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.

公开(公告)号：US20240421415A1

公开(公告)日：2024-12-19

申请号：US18822481

申请日：2024-09-03

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenhui Zhang ,  Pengcheng Yao ,  Xingdi Chen ,  Peng Wang

IPC: H01M50/298 ,  H01M50/202 ,  H01M50/249 ,  H01M50/256

Abstract: The present disclosure relates to a box body (10), a battery (100), and an electric device. The box body (10) has a top surface (h). The top surface (h) of the box body (10) is configured to be brought in contact with an external device at which the battery (100) is mounted. An outer wall of the box body (10) is provided with a wiring portion (13a4) located below the top surface (h) of the box body (10) and having a wiring space configured to allow for passing of a harness.

公开(公告)号：US20240421376A1

公开(公告)日：2024-12-19

申请号：US18798838

申请日：2024-08-09

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenhui Zhang ,  Pengcheng Yao ,  Xingdi Chen ,  Peng Wang

IPC: H01M10/6555 ,  H01M4/02 ,  H01M4/58 ,  H01M10/647 ,  H01M10/6557 ,  H01M50/103 ,  H01M50/209 ,  H01M50/342

Abstract: A battery and an electrical apparatus are provided. The battery includes a box, at least two battery cells and a reinforcing member. The box has an accommodating cavity, and the at least two battery cells are accommodated in the accommodating cavity. Each battery cell includes an electrode assembly and an electrode terminal which are electrically connected to each other. The battery cell includes a first wall, and the first wall is the wall with the largest area in the battery cell. The reinforcing member is connected to the at least two battery cells, wherein the reinforcing member is thermally conductively connected to the first walls of the at least two battery cells.

公开(公告)号：US12119503B2

公开(公告)日：2024-10-15

申请号：US18237902

申请日：2023-08-25

Applicant: Contemporary Amperex Technology Co., Limited

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

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

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：US12113234B2

公开(公告)日：2024-10-08

申请号：US18172036

申请日：2023-02-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Shiyao Zhang ,  Quankun Li ,  Peng Wang ,  Zhanyu Sun ,  Siying Huang ,  Jinmei Xu

IPC: H01M50/342 ,  H01M10/04 ,  H01M50/147 ,  H01M50/20 ,  H01M50/543 ,  H01M50/578

CPC classification number: H01M50/342 ,  H01M10/0413 ,  H01M50/147 ,  H01M50/20 ,  H01M50/543 ,  H01M50/578 ,  H01M2200/00

Abstract: A cover assembly includes a cover plate including a gas vent, a gas exhaust valve configured to seal the gas vent and deform in response to an increase in temperature to get out of a state of sealing the gas vent, and a sealing part. The gas exhaust valve includes a metal sheet and a fixing part. The metal sheet seals the gas vent. The sealing part is arranged between the metal sheet and the cover plate for sealing a gap between the metal sheet and the cover plate. The fixing part is connected to the metal sheet. The metal sheet is fixed to the cover plate by the fixing part. The fixing part is configured to deform in response to an increase in temperature in such a manner that the metal sheet gets out of the state of sealing the gas vent.