公开(公告)号：US11699829B2

公开(公告)日：2023-07-11

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：US11616251B2

公开(公告)日：2023-03-28

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 ,  H01M50/293 ,  H01M50/209 ,  H01M10/625 ,  H01M50/291

Abstract: The disclosure provides a battery module. 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：US11489231B2

公开(公告)日：2022-11-01

申请号：US17550011

申请日：2021-12-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

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

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：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.

公开(公告)号：US20220196748A1

公开(公告)日：2022-06-23

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：US11228073B2

公开(公告)日：2022-01-18

申请号：US16467374

申请日：2018-12-04

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Kai Wu ,  Dan Shen ,  Xiaobo Chen ,  Shilong Chen

IPC: H01M50/342 ,  H01M50/148 ,  H01M50/383 ,  H01M50/30

Abstract: The disclosure relates to a protection assembly, a cover and a housing. The protection assembly is applied for an energy storage device having a pressure relief element, wherein the pressure relief element is structured to deform in response to an increasing internal pressure in the energy storage device until the pressure relief element bursts, and the energy storage device can expel high temperature particles through the burst pressure relief element. The protection assembly comprises: a particle-blocking layer comprising a receiving side for receiving the high temperature particles and a connecting side opposite to the receiving side, wherein the particle-blocking layer comprises a plurality of particle-blocking units in a concave-convex arrangement, and the particle-blocking unit can block the high temperature particles; and a separate protective layer disposed at the connecting side of the particle-blocking layer and connected to the particle-blocking layer.

公开(公告)号：US11223063B2

公开(公告)日：2022-01-11

申请号：US16468946

申请日：2018-12-04

Applicant: Contemporary Amperex Technology Co., Limited

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

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

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：US20240429492A1

公开(公告)日：2024-12-26

申请号：US18826219

申请日：2024-09-06

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M10/658 ,  H01M10/651 ,  H01M50/30

Abstract: Embodiments of this application provide 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 unitThe embodiments of this application can improve safety of the battery.

公开(公告)号：US20240413473A1

公开(公告)日：2024-12-12

申请号：US18809359

申请日：2024-08-20

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Ou Qian ,  Yao Li ,  Xiaobo Chen ,  Piaopiao Yang ,  Mingguang Gu

IPC: H01M50/342 ,  F16K17/16

Abstract: Provided are a pressure relief structure, comprising a carrier substrate, the carrier substrate having a pressure relief portion and a remaining area other than the pressure relief portion, with the thickness of the pressure relief portion being smaller than that of the remaining area. The ratio of the thickness of the pressure relief portion to the length of the carrier substrate in a first direction is denoted as A, where A is greater than 5.6×10−6 and less than 0.028, and/or the ratio of the thickness of the pressure relief portion to the width of the carrier substrate in a second direction is denoted as B, where B is greater than 5×10−5 and less than 0.1. The first direction, the second direction and a thickness direction of the pressure relief portion intersect with each other.

公开(公告)号：US12095049B2

公开(公告)日：2024-09-17

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 ,  G01N25/20 ,  G01R31/28 ,  G01R31/385 ,  H01M10/052 ,  H01M10/615 ,  H01M50/581

CPC classification number: H01M10/4285 ,  G01N25/20 ,  G01R31/385 ,  H01M10/052 ,  H01M10/4235 ,  H01M10/615 ,  H01M50/581 ,  G01R31/2848 ,  G01R31/2849 ,  H01M2200/10 ,  Y02E60/10

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.