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：US20230411779A1

公开(公告)日：2023-12-21

申请号：US18460716

申请日：2023-09-05

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xuehui Wang ,  Mingguang Gu ,  Xiaobo Chen ,  Xiongwei Gao ,  Yucang Hao

IPC: H01M50/342 ,  H01M50/152 ,  H01M50/55

CPC classification number: H01M50/3425 ,  H01M50/152 ,  H01M50/55

Abstract: Provided are an end cover, an end cover assembly, a battery cell, a battery, and an electric device. The end cover includes: two through holes, running through the end cover for mounting electrode terminals; a depression, where the depression is formed by a surface of the end cover recessing in a thickness direction, and a bottom wall of the depression forms a pressure relief mechanism; and a weak portion, disposed on the pressure relief mechanism, where the pressure relief mechanism is configured to crack along the weak portion when internal pressure of the battery cell reaches a threshold; where depth of the weak portion gradually decreases on one or two sides of a perpendicular bisector of a connecting line of the two through holes in a direction leaving the perpendicular bisector.

公开(公告)号：US20230395881A1

公开(公告)日：2023-12-07

申请号：US18452578

申请日：2023-08-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yujie Pu ,  Yao Li ,  Yufeng Zhang ,  Jianhuang Ke ,  Xiaobo Chen

IPC: H01M10/42

CPC classification number: H01M10/4285

Abstract: A thermal runaway trigger method relates to the technical field of batteries. The thermal runaway trigger method includes: providing a battery cell and a heating member arranged in the battery cell; and heating the inside of the battery cell by the heating member, so as to cause a thermal runaway of the battery cell. The heating member is arranged inside the battery cell, and the heating member heats the inside of the battery cell to cause the thermal runaway of the battery cell, so that the inside of the battery cell can be heated to cause the thermal runaway of the battery cell in a relatively short time. Due to the reduced internal space of the battery cell, the range of diffusion of the heating member inside the battery cell is small, and the heat loss of the heating member is relatively small.

公开(公告)号：US11670821B2

公开(公告)日：2023-06-06

申请号：US17951816

申请日：2022-09-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yao Li ,  Xiaobo Chen ,  Mingguang Gu

IPC: H01M50/342 ,  H01M50/209 ,  H01M10/6556 ,  H01M50/35

CPC classification number: H01M50/3425 ,  H01M50/209 ,  H01M10/6556 ,  H01M50/342 ,  H01M50/35 ,  H01M2220/20 ,  Y02E60/10

Abstract: An embodiment of the present application is provided with a battery box, a battery, a power consumption device, and a method for producing a battery and an apparatus for producing a battery. The box of the battery includes: an electrical chamber, configured to accommodate a battery cell group; a collection chamber, configured to collect emissions of the battery cell provided with the pressure relief mechanism when the pressure relief mechanism is actuated; an isolation component for isolating the electrical chamber and the collection chamber, such that the electrical chamber and the collection chamber are arranged on both sides of the isolation component; wherein a surface of the isolation component that is close to the battery cell group is provided with an avoidance opening, the avoidance opening extends along the first direction, and the plurality of pressure relief mechanisms of the battery cell group face the avoidance opening.

公开(公告)号：US11614494B2

公开(公告)日：2023-03-28

申请号：US17566694

申请日：2021-12-31

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yucang Hao ,  Xiaobo Chen ,  Ting Li

IPC: G01R31/385 ,  H01M10/42

Abstract: The application provides a method, apparatus, device and medium for detecting an internal short-circuit fault of a battery cell. The method includes obtaining electrical signal values for each of m battery cells of a battery pack, when it is in a preset condition including that a current detection is an nth detection; performing following steps for a target battery cell: calculating a first parameter of the target battery cell using the electrical signal values of the target battery cell, which characterizes a degree of fluctuation of the electrical signal values; calculating a second parameter that characterizes a degree of dispersion between the first parameter of the target battery cell and first parameters of other battery cells; and determining that an internal short-circuit fault occurs in the target battery cell, under a condition that the second parameter is greater than a threshold.

公开(公告)号：US20220246975A1

公开(公告)日：2022-08-04

申请号：US17539225

申请日：2021-12-01

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Fenggang Zhao ,  Junda Tu ,  Xiaobo Chen ,  Dan Shen ,  Xuehui Wang

IPC: H01M10/04 ,  H01M10/613 ,  H01M10/647 ,  H01M10/653 ,  H01M10/658

Abstract: The disclosure relates to a battery module and the technical field of energy storage. The battery module comprises: a frame having an accommodation space; and a plurality of batteries successively arranged in the accommodation space in a thickness direction of the battery, wherein a partition is arranged between adjacent batteries, wherein the partition has a compressibility and a coefficient of compressibility δ1 at a pressure equal to or smaller than 2 MPa, which meets a relation C0×δ1≤A0×0.2, wherein C0 is an initial thickness of the partition, and A0 is an initial thickness of the battery.

公开(公告)号：US10411225B2

公开(公告)日：2019-09-10

申请号：US15649953

申请日：2017-07-14

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Baisong Chen ,  Peng Wang ,  Kai Wu ,  Zhiyu Wang ,  Xiaobo Chen

IPC: H01M2/04 ,  H01M2/34 ,  H01M10/02 ,  H01M10/04

Abstract: A cap structure of a power battery includes first and second electrode components, a cap plate attached to the first and second electrode components, and a turnable plate connected to the second electrode component. The first electrode component is electrically isolated from the cap plate and includes a first terminal and a first connecting block. The first connecting block is located above the cap plate and includes a terminal connecting portion, a fusing portion, and a turnable plate connecting portion. In case that an internal pressure of the power battery exceeds a reference pressure, the turnable plate is turned over and in contact with the turnable plate connecting portion, such that the first terminal is electrically connected to the second electrode component.

公开(公告)号：US20240429521A1

公开(公告)日：2024-12-26

申请号：US18820291

申请日：2024-08-30

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jianhuang Ke ,  Xiaobo Chen ,  Yao Li ,  Shilong Chen

IPC: H01M50/242 ,  H01M50/342

Abstract: Provided a battery and an electric apparatus. The battery includes a box, a battery unit, and a protective member. The box includes a first wall. The battery unit is accommodated within the box, where the battery unit is provided with a pressure relief mechanism, and the pressure relief mechanism is configured to form a pressure relief hole for releasing substances inside the battery unit. The protective member is accommodated within the box, where at least a portion of the protective member is located between the first wall and the pressure relief mechanism and configured to cover the pressure relief hole in an axial direction of the pressure relief hole. battery unitIn the embodiments of this application, redundancy designed for the dimension of the protective member can be reduced while thermal protection requirements are met, thereby reducing energy density loss of the battery and improving safety of the battery.

公开(公告)号：US11817601B2

公开(公告)日：2023-11-14

申请号：US17953734

申请日：2022-09-27

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xianda Li ,  Xiaobo Chen ,  Yao Li ,  Lu Hu ,  Jinru Yue ,  Piaopiao Yang ,  Mingguang Gu

IPC: H01M50/375 ,  H01M50/342 ,  H01M10/6556 ,  H01M10/625 ,  H01M10/613

CPC classification number: H01M50/375 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6556 ,  H01M50/3425 ,  H01M2220/20

Abstract: Embodiments of the present application provide a battery, a power consumption device, a method and a device for producing the battery. The battery includes: a battery cell, including a pressure relief mechanism, wherein the pressure relief mechanism is disposed on a first wall of the battery cell; a thermal management component, wherein a first surface of the thermal management component is attached to the first wall, and the thermal management component is provided with a pressure relief hole opposite to the pressure relief mechanism; and a baffle configured to cover a part of the pressure relief hole, so that when the pressure relief mechanism is actuated, a discharge direction of the emissions entering the pressure relief hole is changed. The battery, the power consumption device, the method and the device for producing the battery provided in the embodiments of the present application can enhance safety of batteries.

公开(公告)号：US11791518B2

公开(公告)日：2023-10-17

申请号：US17113038

申请日：2020-12-05

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yuqun Zeng ,  Xiaobo Chen ,  Peng Wang ,  Yao Li ,  Yongshou Lin

IPC: H01M50/342 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6554 ,  H01M10/647 ,  H01M10/6556 ,  H01M50/209 ,  H01M50/358 ,  H01M50/204 ,  H01M50/375 ,  H01M50/609

CPC classification number: H01M50/3425 ,  H01M10/613 ,  H01M10/625 ,  H01M10/647 ,  H01M10/6554 ,  H01M10/6556 ,  H01M50/204 ,  H01M50/209 ,  H01M50/342 ,  H01M50/358 ,  H01M50/375 ,  H01M50/609 ,  H01M2200/10 ,  H01M2200/20 ,  H01M2220/20

Abstract: Embodiments of the present application provide a battery. The battery includes: a battery cell comprising a pressure relief mechanism, the pressure relief mechanism being arranged in a first wall of the battery cell and the pressure relief mechanism being configured, when an internal pressure or temperature of the battery cell reaches a threshold, to be actuated to release the internal pressure; and a thermal management component for containing a fluid to adjust the temperature of the battery cell; wherein a first surface of the thermal management component is attached to the first wall, and the thermal management component is configured to be capable of being damaged when the pressure relief mechanism is actuated, so that the fluid is discharged from inside of the thermal management component. According to the technical solutions of the embodiments of the present application, the safety of the battery can be enhanced.