公开(公告)号：US12057606B2

公开(公告)日：2024-08-06

申请号：US18307232

申请日：2023-04-26

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M50/593 ,  H01M50/15 ,  H01M50/172 ,  H01M50/474 ,  H01M50/477 ,  H01M50/533 ,  H01M50/547 ,  H01M50/586 ,  H01M50/531

CPC classification number: H01M50/593 ,  H01M50/15 ,  H01M50/172 ,  H01M50/474 ,  H01M50/477 ,  H01M50/533 ,  H01M50/547 ,  H01M50/586 ,  H01M50/531

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：US12027719B2

公开(公告)日：2024-07-02

申请号：US17355761

申请日：2021-06-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yu Tang ,  Linggang Zhou ,  Ziyuan Li ,  Peng Wang ,  Kaijie You ,  Xingdi Chen

IPC: H01M50/262 ,  H01M10/04 ,  H01M50/209 ,  H01M50/227 ,  H01M50/264 ,  H01M50/296 ,  H01M50/50 ,  H01M50/502

CPC classification number: H01M50/262 ,  H01M10/0413 ,  H01M50/209 ,  H01M50/227 ,  H01M50/264 ,  H01M50/296 ,  H01M50/50 ,  H01M50/502

Abstract: The present application provides a battery module, which includes a plurality of batteries, an end plate and an output electrode connecting sheet. The plurality of batteries are arranged in a longitudinal direction. The end plate has: a main body portion, located on one side of the plurality of batteries in the longitudinal direction; and an extension portion, formed on the main body portion and extending in the longitudinal direction away from the batteries. The output electrode connecting sheet has: a first connecting portion, connected to a corresponding battery; and a second connecting portion, connected to one end of the first connecting portion and fixed to the extension portion of the end plate.

公开(公告)号：US12002994B2

公开(公告)日：2024-06-04

申请号：US17488437

申请日：2021-09-29

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xingdi Chen ,  Mingdi Xie ,  Kaijie You ,  Peng Wang ,  Yu Tang ,  Yongguang Wang

IPC: H01M10/00 ,  H01M10/0585 ,  H01M50/209 ,  H01M50/507 ,  H01M50/553

CPC classification number: H01M50/507 ,  H01M10/0585 ,  H01M50/209 ,  H01M50/553 ,  H01M2220/20

Abstract: The present application provides a battery module, a battery pack, and a battery-powered apparatus. The battery module includes a plurality of battery units and a busbar assembly. The plurality of battery units are arranged in a horizontal direction, where each battery unit includes a plurality of batteries stacked in a vertical direction, the plurality of batteries include a first battery and a second battery, the first battery and the second battery each include a first electrode terminal, a second electrode terminal, and an explosion-proof piece. A busbar assembly electrically connects the plurality of battery units, where the busbar assembly includes a first busbar connected to the first electrode terminal and the second electrode terminal. In a first direction perpendicular to the vertical direction and the horizontal direction, the first busbar includes a first weak zone that at least partially overlaps with the explosion-proof piece of the first battery.

公开(公告)号：US12002981B2

公开(公告)日：2024-06-04

申请号：US16838064

申请日：2020-04-02

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xingdi Chen ,  Kaijie You ,  Peng Wang ,  Yongguang Wang ,  Zequan Lu

IPC: H01M50/26 ,  H01M50/211 ,  H01M50/262 ,  H01M50/271 ,  H01M50/291

CPC classification number: H01M50/262 ,  H01M50/211 ,  H01M50/271 ,  H01M50/291 ,  H01M2220/20

Abstract: A battery pack for optimizing the structure of the battery pack includes a case, a battery module and a blocking member. The case includes an accommodating cavity and a drain hole in communication with the accommodating cavity. The battery module is contained inside the accommodating cavity. The blocking member is mounted to the case, wherein the blocking member is disposed on one side of the battery module in a width direction. At least a part of the blocking member is arranged between the battery module and the drain hole to block a binder for fixing the battery module from entering the drain hole. The reservoir cavity is provided, such that the liquid flow into a reservoir portion to prevent dangers such as short-circuit occurring in the battery module when liquid is accumulated inside the case.

公开(公告)号：US11967725B2

公开(公告)日：2024-04-23

申请号：US17878293

申请日：2022-08-01

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M50/20 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6554 ,  H01M50/342 ,  H01M50/502 ,  H01M10/615 ,  H01M10/623 ,  H01M10/643 ,  H01M10/647 ,  H01M10/653 ,  H01M10/6556 ,  H01M50/209 ,  H01M50/247 ,  H01M50/249 ,  H01M50/367 ,  H01M50/375 ,  H01M50/55

CPC classification number: H01M50/20 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6554 ,  H01M50/3425 ,  H01M50/502 ,  H01M10/615 ,  H01M10/623 ,  H01M10/643 ,  H01M10/647 ,  H01M10/653 ,  H01M10/6556 ,  H01M50/209 ,  H01M50/247 ,  H01M50/249 ,  H01M50/342 ,  H01M50/367 ,  H01M50/375 ,  H01M50/55 ,  H01M2220/20 ,  Y02E60/10

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.

公开(公告)号：US11949119B2

公开(公告)日：2024-04-02

申请号：US16928523

申请日：2020-07-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Quankun Li ,  Shiyao Zhang ,  Peng Wang

IPC: H01M50/325 ,  H01M50/147 ,  H01M50/155 ,  H01M50/183 ,  H01M50/184 ,  H01M50/30 ,  H01M50/358 ,  H01M50/383

CPC classification number: H01M50/325 ,  H01M50/147 ,  H01M50/155 ,  H01M50/183 ,  H01M50/184 ,  H01M50/358 ,  H01M50/383 ,  H01M50/394

Abstract: A cover assembly of a secondary battery and 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 protective part at least partially covering the gas vent and having a gas permeability coefficient smaller than a gas permeability coefficient of the gas exhaust valve.

公开(公告)号：US20240079693A1

公开(公告)日：2024-03-07

申请号：US18501040

申请日：2023-11-03

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenlin Zhou ,  Quankun Li ,  Daowei Yang ,  Peng Wang

IPC: H01M50/15 ,  H01M50/103 ,  H01M50/186 ,  H01M50/209 ,  H01M50/342

CPC classification number: H01M50/15 ,  H01M50/103 ,  H01M50/186 ,  H01M50/209 ,  H01M50/3425 ,  H01M2220/20

Abstract: Provided are an end cover assembly, a battery cell, a battery, and an electrical apparatus. The end cover assembly is for a battery cell and comprises: an end cover provided with a pressure relief through hole; a pressure relief mechanism connected to the end cover and covering the pressure relief through hole, and configured to be actuated to release the pressure inside the battery cell when the pressure reaches a threshold; and a reinforcing mechanism, located on a side of the end cover facing away from an electrode assembly of the battery cell, and covering at least a part of the pressure relief through hole. The reinforcing mechanism is at least connected to a portion of the end cover at two sides of the pressure relief through hole along a first direction to enhance the strength of the end cover at the pressure relief through hole.

公开(公告)号：US11916249B2

公开(公告)日：2024-02-27

申请号：US17134012

申请日：2020-12-24

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M50/342 ,  H01M50/148

CPC classification number: H01M50/342 ,  H01M50/148 ,  H01M2200/10

Abstract: This application relates to a cover assembly of a secondary battery. The cover assembly includes a cover plate with an air hole; a blocker inserted into and blocking the air hole; a sealing member disposed between the blocker and the cover plate configured to seal a gap between the blocker and the cover plate; and a fastener disposed inside the air hole. The fastener is connected to the cover plate, the blocker is connected to the cover plate through the fastener. The fastener is configured to deform in response to a temperature rise, so that the blocker stops blocking the air hole. The blocker stops blocking the air hole as a temperature inside a housing rises, to discharge gas from the housing through the air hole. In this way, the secondary battery can be prevented from an explosion, while partial heat is taken away through gas discharge.

公开(公告)号：US11916246B2

公开(公告)日：2024-02-27

申请号：US16963478

申请日：2019-01-14

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Qing Wang ,  Peng Wang ,  Shengjie Hu

IPC: H01M50/24 ,  H01M10/42 ,  H01M50/262 ,  H01M50/278 ,  H01M50/284 ,  H01M50/209 ,  H01M50/505

CPC classification number: H01M50/24 ,  H01M10/425 ,  H01M50/209 ,  H01M50/262 ,  H01M50/278 ,  H01M50/284 ,  H01M50/505

Abstract: The present disclosure discloses a battery pack, including a plurality of battery modules. Each battery module includes: a battery row including a plurality of battery cells, each battery cell includes two electrodes and electrodes of all battery cells form two electrode rows arranging in the longitudinal direction; a flexible printed circuit board located between the two electrode rows; and two conductive connecting plate rows located on two sides of the flexible printed circuit board in the transverse direction respectively, each conductive connecting plate row includes a plurality of conductive connecting plates arranged in the longitudinal direction and spaced apart from each other, and each conductive connecting plate is electrically connected to the flexible printed circuit board and a corresponding electrode of a corresponding electrode row. Each battery module further includes an insulation cover covering and fixed to a top of the battery row to insulate each battery module from outside.

公开(公告)号：US11888136B2

公开(公告)日：2024-01-30

申请号：US18118860

申请日：2023-03-08

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhanyu Sun ,  Haiqi Yang ,  Xiaoteng Huang ,  Peng Wang ,  Yuepan Hou

IPC: H01M10/6555 ,  H01M10/04 ,  H01M50/209

CPC classification number: H01M10/6555 ,  H01M10/0404 ,  H01M50/209

Abstract: Provided are a battery, a power consumption device, a method and a device for producing a battery. The battery includes: a plurality of battery cells arranged along a first direction; a thermal management component extending along the first direction and being connected to a first wall of each battery cell among the plurality of battery cells, the first wall being a wall with a largest surface area of the battery cell, and the thermal management component being configured to adjust a temperature of the battery cell; and where in the second direction, a size H1 of the thermal management component and a size H2 of the first wall satisfy: 0.1≤H1/H2≤2, and the second direction is perpendicular to the first direction and parallel to the first wall.