公开(公告)号：US20230361408A1

公开(公告)日：2023-11-09

申请号：US18352254

申请日：2023-07-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chenyi Xu ,  Zhimin Zeng ,  Haiqi Yang ,  Yu Tang ,  Xiaoteng Huang ,  Peng Wang

IPC: H01M50/238 ,  H01M50/258 ,  H01M50/244 ,  H01M50/204 ,  H01M10/04

CPC classification number: H01M50/238 ,  H01M50/258 ,  H01M50/244 ,  H01M50/204 ,  H01M10/0481 ,  H01M2220/20

Abstract: A battery box, a battery, an electric device, and a method and device for manufacturing battery are provided. The battery box includes a support member and an expansion member. The expansion member presses the support member so that the volumetric capacity of an accommodating space for accommodating binder between the support member and the battery cell changes. The volumetric capacity of the accommodating space can be adjusted. Therefore, under the condition that the accommodating space has a relatively large volumetric capacity, it is simple to inject an appropriate amount of binder; and after the binder is injected, the volumetric capacity of the accommodating space is reduced so that the binder spreads throughout the accommodating space. The foregoing box allows for binder injection reduction during battery assembly, thereby reducing the possibility of binder overflow, improving the safety performance of the battery, and also increasing the energy density of the battery.

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：US11677125B2

公开(公告)日：2023-06-13

申请号：US17058490

申请日：2019-11-25

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yulian Zheng ,  Xiaoping Zhang ,  Peng Wang ,  Zhanyu Sun

IPC: H01M50/593 ,  H01M50/586 ,  H01M50/533 ,  H01M50/547 ,  H01M50/172 ,  H01M50/15

CPC classification number: H01M50/593 ,  H01M50/15 ,  H01M50/172 ,  H01M50/533 ,  H01M50/547 ,  H01M50/586

Abstract: The present disclosure relates to a battery cell to alleviate the problem of impurities falling into an electrode assembly. Wherein, the battery cell includes: an electrode assembly including a tab and a cell body, wherein the tab is connected to the cell body; a cover plate assembly including an electrode terminal and a cover plate, wherein the electrode terminal is disposed on the cover plate; a connecting sheet connected between the tab and the electrode terminal, the connecting sheet includes a first connecting portion and a second connecting portion, wherein the first connecting portion is connected to the tab, and the second connecting portion is connected to the electrode terminal; an insulating pallet disposed between the cell body and the connecting sheet; and an insulation member disposed between the insulating pallet and the second connecting portion.

公开(公告)号：US11637348B2

公开(公告)日：2023-04-25

申请号：US16941419

申请日：2020-07-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

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

Abstract: A cover assembly of a secondary battery. The 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 arranged between the gas exhaust valve and the cover plate and surrounding the gas vent for sealing a gap between the gas exhaust valve and the cover plate.

公开(公告)号：US11611128B2

公开(公告)日：2023-03-21

申请号：US17113018

申请日：2020-12-05

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yuqun Zeng ,  Zhimin Zeng ,  Kai Wu ,  Xingdi Chen ,  Peng Wang ,  Zhanyu Sun

IPC: H01M50/375 ,  H01M50/342 ,  H01M10/6567 ,  H01M50/24 ,  H01M50/325 ,  H01M50/593 ,  H01M10/0525

Abstract: The present application discloses a battery and a related apparatus, production method and production device therefor. The battery includes: a battery cell, the battery cell including a pressure relief mechanism configured to be capable of being actuated when an internal pressure or temperature of the battery cell reaches a threshold, to relieve the internal pressure; an attachment component adapted to be attached to the battery cell by an adhesive; and an isolation component configured to be capable of preventing the adhesive from being applied between the attachment component and the pressure relief mechanism. By providing the isolation component, it is possible to prevent the adhesive from being applied between the attachment component and the pressure relief mechanism in an effective manner in a process of battery production. Meanwhile, application efficiency and accuracy of the adhesive could be improved, thereby improving production efficiency of the battery.

公开(公告)号：US11611116B2

公开(公告)日：2023-03-21

申请号：US16838067

申请日：2020-04-02

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xingdi Chen ,  Kaijie You ,  Peng Wang ,  Yu Tang ,  Long Li

IPC: H01M10/613 ,  H01M10/6556 ,  H01M10/6567 ,  H01M10/6554 ,  H01M50/636 ,  H01M50/103 ,  H01M50/271 ,  H01M50/209

Abstract: A battery pack includes a case and a battery module. The case includes an accommodating cavity and a drain hole in communication with the accommodating cavity. The battery module is mounted inside the accommodating cavity. A reservoir cavity is provided below the battery module to store a liquid, and in communication with the drain hole. A reservoir cavity is provided, such that the liquid can flow into a reservoir portion to prevent dangers such as short-circuit occurring in the battery module inside the case, and optimize the structure and performance of the battery pack when liquid is accumulated inside the case.

公开(公告)号：US11581610B2

公开(公告)日：2023-02-14

申请号：US17113010

申请日：2020-12-05

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yuqun Zeng ,  Jianxiong Yang ,  Peng Wang ,  Zhijun Guo ,  Quankun Li ,  Zhanyu Sun

IPC: H01M50/30 ,  H01M10/42 ,  H01M10/613 ,  H01M50/249 ,  H01M50/271 ,  H01M10/647 ,  H01M10/0525

Abstract: Disclosed are a battery box, a battery cell, a battery, and a method and apparatus for preparing the battery box. The battery box includes a pressure relief region including a first recess arranged at an inner surface of the battery box and a second recess arranged at an outer surface of the battery box, the first recess being arranged opposite to the second recess, wherein a third recess is provided at a bottom wall of the first recess and/or a bottom wall of the second recess, and the pressure relief region is configured to fracture at the third recess, when an internal pressure of the battery box reaches a threshold, to relieve the internal pressure. According to the battery box, the battery cell, the battery, and the method and apparatus for preparing the battery box disclosed in the present application, the pressure relief region is easy to machine.

公开(公告)号：US20230006317A1

公开(公告)日：2023-01-05

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

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：US11489221B2

公开(公告)日：2022-11-01

申请号：US16965289

申请日：2018-04-17

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yong Zhou ,  Zhijun Guo ,  Peng Wang

IPC: H01M50/15 ,  H01M50/60 ,  H01M50/342 ,  H01M10/0587

Abstract: The disclosure relates to a power battery and a battery module. The power battery includes: a case including two openings opposite to each other; an electrode assembly formed by winding a positive electrode sheet, a negative electrode sheet, and a separator disposed around a winding axis, the electrode assembly being disposed in the case, and two opposite ends of the electrode assembly along the winding axis being respectively disposed corresponding to the two openings; a first cap assembly covering one of the two openings, the first cap assembly including a liquid injection hole communicating with an interior of the case; a second cap assembly covering the other opening, the second cap assembly including a through hole communicating with the interior of the case; in a length direction, the liquid injection hole and the through hole are located on a same side of a central axis of the case.

公开(公告)号：US11450916B2

公开(公告)日：2022-09-20

申请号：US17113025

申请日：2020-12-05

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiaobo Chen ,  Fenggang Zhao ,  Yao Li ,  Peng Wang ,  Zhanyu Sun ,  Yongshou Lin

IPC: H01M10/613 ,  H01M10/625 ,  H01M10/6554 ,  H01M50/20 ,  H01M50/502 ,  H01M50/342 ,  H01M10/643 ,  H01M10/6556 ,  H01M10/647

Abstract: Embodiments of the present application provide a case of a battery, a battery, a power consumption device, and a method and device for preparing a battery. The case includes: an electrical chamber configured to accommodate a plurality of battery cells and a bus component, where at least one battery cell of the plurality of battery cells includes a pressure relief mechanism; a thermal management component configured to accommodate a fluid to adjust temperatures of the plurality of battery cells; and a collection chamber configured to collect, when the pressure relief mechanism is actuated, emissions from the battery cell provided with the pressure relief mechanism; where the thermal management component is configured to isolate the electrical chamber from the collection chamber. According to the technical solutions of the embodiments of the present application, the safety of the battery can be enhanced.