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

IPC: H01M2/04 ,  H01M10/02

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.

公开(公告)号：US20180233715A1

公开(公告)日：2018-08-16

申请号：US15881089

申请日：2018-01-26

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Chengyou Xing ,  Quankun Li ,  Peng Wang ,  Zhijun Guo

IPC: H01M2/04 ,  H01M2/08

CPC classification number: H01M2/0404 ,  H01M2/0486 ,  H01M2/06 ,  H01M2/08 ,  H01M2/30 ,  H01M10/05

Abstract: A top cap structure for a power battery is provided. The power battery top cap structure includes a first and second electrode assemblies, and a top cap piece. The first electrode assembly includes a first electrode column having an upper and lower sections, a first seal member and a first connection block. The upper section and the first connection block are formed from a first base metal. The lower section is formed from a second base metal different from the first base metal. The upper section includes a step portion, and the lower section is joined with a bottom surface of the upper section below the top cap piece. The first seal member includes a horizontal extending portion. The horizontal extending portion is disposed between a lower surface of the top cap piece and the step portion. The top portion of the upper section connects with the first connection block.

公开(公告)号：US20240429570A1

公开(公告)日：2024-12-26

申请号：US18823293

申请日：2024-09-03

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qi CHENG ,  Rui Yang ,  Quankun Li ,  Hong Wang ,  Kaihuan Yang

IPC: H01M50/533 ,  B60L50/64 ,  H01M50/105 ,  H01M50/178 ,  H01M50/474

Abstract: A battery cell, a battery, an electricity consuming device and a preparation method are provided. The battery cell includes an electrode assembly and an adapter. The electrode assembly includes at least two electrode bodies arranged side by side along a first direction and tabs extending from the electrode bodies. The tab includes an extension portion and a bent portion, the extension portion extends from the electrode body along a second direction, the bent portion is connected with an end of the extension portion away from the electrode body and extends along a first direction, an adapter is connected with the tabs, the current of the electrode body is conducted by the adapter to the outside, a bending arrangement of the tabs enhances their structural strength, avoiding the problem of degradation in internal electrical connection performance of the battery due to damage to the tabs by an external force.

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.

公开(公告)号：US11936049B2

公开(公告)日：2024-03-19

申请号：US16732615

申请日：2020-01-02

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xing Li ,  Xiangyan Bu ,  Qingyuan Jiang ,  Guijiu Qu ,  Xiaowen Zhang ,  Quankun Li ,  Lingbo Zhu

IPC: H01M50/531 ,  H01M4/70 ,  H01M50/209 ,  H01M50/278 ,  H01M50/533 ,  H01M50/536 ,  H01M50/538

CPC classification number: H01M4/70 ,  H01M50/531 ,  H01M50/209 ,  H01M50/278 ,  H01M50/533 ,  H01M50/536 ,  H01M50/538

Abstract: The present disclosure relates to a battery unit and a battery module, the battery unit includes an electrode assembly, including a main body portion and a tab; two electrode terminals; and two current collecting members respectively connecting the tabs on both sides of the main body portion with the respective electrode terminals; the current collecting member includes a guiding plate and a supporting plate, the guiding plate is located on one side of the main body portion along the length direction, a reinforcement portion is arranged on the guiding plate and is configured to reduce the deformation of the guiding plate towards the main body portion; and the supporting plate is connected to an end of the guiding plate along the width direction, the tab is bent relative to the length direction and connected to the supporting plate. The battery unit can reduce the bending deformation of the guiding plate.

公开(公告)号：US11923551B2

公开(公告)日：2024-03-05

申请号：US18048454

申请日：2022-10-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yuqun Zeng ,  Chengyou Xing ,  Wenlong Kang ,  Huasheng Su ,  Quankun Li

IPC: H01M50/152 ,  H01M10/04 ,  H01M50/164

CPC classification number: H01M50/152 ,  H01M10/0409 ,  H01M50/164

Abstract: Embodiments provide a battery cell, a battery, an electric apparatus, and a manufacturing method and system of battery cell. In those embodiments, the battery cell includes a housing, an electrode assembly, and an end cover assembly. The housing provides an opening. The electrode assembly is disposed in the housing. The electrode assembly includes a body portion and a tab. The tab extends from an end of the body portion to the opening. The electrode assembly includes a first electrode plate, a second electrode plate, and a separator. The first electrode plate and the second electrode plate each have a coated area and an uncoated area. A part of the electrode assembly corresponding to the coated areas of the first electrode plate and the second electrode plate is the body portion. The uncoated area of the first electrode plate or the second electrode plate forms the tab.

公开(公告)号：US20240055693A1

公开(公告)日：2024-02-15

申请号：US18494733

申请日：2023-10-25

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenlin Zhou ,  Liangfan Xu ,  Wenwei Chen ,  Xing Li ,  Quankun Li

IPC: H01M10/653 ,  H01M50/103 ,  H01M50/15 ,  H01M50/474 ,  H01M50/477 ,  H01M10/04

CPC classification number: H01M10/653 ,  H01M50/103 ,  H01M50/15 ,  H01M50/474 ,  H01M50/477 ,  H01M10/049 ,  H01M10/0404

Abstract: Provided are a battery cell, a battery, a power consuming apparatus, and a method and apparatus for manufacturing the battery cell, relating to the technical field of batteries. The battery cell includes a housing, an electrode assembly, an end cap, an insulator and a thermally conductive member. The housing is provided with an opening. The electrode assembly is configured to be accommodated in the housing. The end cap is configured to cover the opening. The insulator is located on the side of the end cap facing the electrode assembly, and the insulator is configured to isolate the end cap from the electrode assembly. The thermally conductive member is embedded in the insulator, and the thermally conductive member is configured to be attached to the end cap. Heat generated by the electrode assembly may be transferred to the end cap through the thermally conductive member.

公开(公告)号：US11757161B2

公开(公告)日：2023-09-12

申请号：US17930722

申请日：2022-09-09

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Huasheng Su ,  Chengyou Xing ,  Kun Fang ,  Quankun Li ,  Wenlong Kang ,  Peng Wang

IPC: H01M50/559

CPC classification number: H01M50/559 ,  H01M2220/20

Abstract: A battery cell is provided. The battery cell includes a tab, an electrode terminal, an adapter for electrical connection between the electrode terminal and the tab. The adapter includes a first connecting portion for electrical connection with the electrode terminal; a second connecting portion for electrical connection with the tab; a third connecting portion for connecting the first connecting portion and the second connecting portion; and a bending portion, the third connecting portion is connected with the first connecting portion by the bending portion and the third connecting portion is connected with the second connecting portion by the bending portion; the third connecting portion includes a reinforcing portion, and the reinforcing portion is located at the connection of the third connecting portion and the bending portion; the minimum distance L from an edge of the reinforcing portion to a center line of the bending portion satisfies: R

公开(公告)号：US20230246223A1

公开(公告)日：2023-08-03

申请号：US18180858

申请日：2023-03-09

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Kai Wu ,  Chengyou Xing ,  Wenlong Kang ,  Huasheng Su ,  Quankun Li

IPC: H01M10/04 ,  H01M50/152 ,  H01M50/538

CPC classification number: H01M10/0422 ,  H01M10/0409 ,  H01M50/152 ,  H01M50/538

Abstract: A cylindrical battery cell, a battery, an electricity consuming device, a manufacturing method and a manufacturing system are provided. The cylindrical battery cell includes a shell, including an opening; and an electrode assembly, disposed in the shell, the electrode assembly including a separator and a tab, and along an axial direction of the electrode assembly, the tab being located at one end of the electrode assembly and extending toward the opening, the tab including a first portion and a second portion, the second portion surrounding a periphery of the first portion, and the separator wrapping the second portion to isolate the second portion from the shell, wherein along the axial direction, the first portion extends beyond the second portion and the separator, and the second portion does not extend beyond the separator. The battery cell of the present application solves a problem of short circuit in the battery cell.