公开(公告)号：US11489230B2

公开(公告)日：2022-11-01

申请号：US16678125

申请日：2019-11-08

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xianchun Zhu ,  Chao Zeng ,  Hua Cao ,  Mu Qian

IPC: H01M50/375

Abstract: The present disclosure relates to the technical field of energy storage devices, and in particular, to a battery module and a battery pack. The battery module includes: a plurality of battery cells stacked in sequence, the plurality of battery cells being provided with vents; and a circuit board arranged above the plurality of battery cells. The circuit board is provided with a temperature sensing device, and a position of each of the temperature sensing device corresponds to positions of the vents. The temperature sensing device is connected to a battery management system to form a circuit, and the circuit is disconnected when any one of the vents is blasted.

公开(公告)号：US20210159575A1

公开(公告)日：2021-05-27

申请号：US17136055

申请日：2020-12-29

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Guoliang HU ,  Chao Zeng ,  Shaozhen Chen ,  Quan Yang

IPC: H01M50/581 ,  H01M50/317 ,  H01M50/593 ,  H01M50/209

Abstract: The present application relates to a battery module, which may include: a plurality of secondary batteries disposed in a row, the plurality of secondary batteries are provided with explosion-proof valves; an insulating plate disposed above the secondary batteries; a monitoring cable set connected with the insulating plate, and the monitoring cable set is corresponding to a position of each of the explosion-proof valves; the monitoring cable set comprises two monitoring cables, and the monitoring cables includes wires and thermomelting insulating layers cladding the wires; when the explosion-proof valve of any of the secondary batteries explodes, the thermomelting insulating layers of the two monitoring cables melt, and two wires are in contact with each other and short-circuited.

公开(公告)号：US20200348365A1

公开(公告)日：2020-11-05

申请号：US16559644

申请日：2019-09-04

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xiao WANG ,  Chao Zeng ,  Jia Xu ,  Zhimin Dan ,  Yizhen Hou ,  Wei Zhang ,  Guoliang Hu

IPC: G01R31/392 ,  H02J7/00 ,  G01R31/3842 ,  G01K3/00 ,  G01K3/10 ,  G01K13/00 ,  H01M10/48 ,  H01M10/42

Abstract: The disclosure provides a thermal runaway detection circuit and method, and relates to batteries. The thermal runaway detection circuit includes: a sensing module including a sensing cable; a detection module connected to the sensing cable and including at least one set of voltage dividing resistors; a processing module connected to the detection module, wherein the processing module is configured to obtain thermal runaway detection data, and determine whether thermal runaway occurs in the battery pack based on the thermal runaway detection data, wherein the thermal runaway detection data includes battery pack data and sampled data collected from sampling points, and the sampling points are disposed between the two connected voltage dividing resistor sets. The technical solutions in the present disclosure can improve safety of the battery pack.

公开(公告)号：US20240396145A1

公开(公告)日：2024-11-28

申请号：US18792802

申请日：2024-08-02

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhiqiang LI ,  Chao Zeng ,  Cong Bao ,  Shengwei Wang

IPC: H01M50/242 ,  H01M50/227

Abstract: This application provides a battery box, a battery, and an electric device. The battery box includes a bottom plate and a frame. Each of two ends of the frame is provided with an opening, the opening at one end of the frame is connected to an edge of the bottom plate to form an accommodating space, and a light energy absorber is arranged on a side of the bottom plate in the accommodating space facing the accommodating space. According to the battery box provided in this application, in a case that an impact or a collision occurs at the bottom of the battery box, the light energy absorber can absorb the impact energy produced by the impact or collision, thereby greatly reducing the vibration, extrusion, and collision intensity of a battery module in the battery box. The light energy absorber provides buffering and protection for the battery module.

公开(公告)号：US20240387902A1

公开(公告)日：2024-11-21

申请号：US18788779

申请日：2024-07-30

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Cong BAO ,  Guize Chen ,  Chao Zeng

IPC: H01M10/6551 ,  H01M10/613 ,  H01M10/6566 ,  H01M50/204 ,  H01M50/264

Abstract: This application relates to a cooling mechanism, a battery module, and an electric apparatus. The cooling mechanism includes an air cooling fin, where the air cooling fin has a first side and a second side opposite in a first direction. The air cooling fin is provided with a cooling channel extending longitudinally in a second direction on the first side and/or the second side, where the first direction is perpendicular to the second direction. The cooling mechanism can address the problem of inadequate cooling in the battery module, which can affect the lifespan, performance, and safety of the battery module.

公开(公告)号：US11353515B2

公开(公告)日：2022-06-07

申请号：US16559644

申请日：2019-09-04

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xiao Wang ,  Chao Zeng ,  Jia Xu ,  Zhimin Dan ,  Yizhen Hou ,  Wei Zhang ,  Guoliang Hu

IPC: G01R31/392 ,  G01R31/3842 ,  G01K3/00 ,  G01K3/10 ,  G01K13/00 ,  H01M10/42 ,  H01M10/48 ,  H02J7/00

Abstract: The disclosure provides a thermal runaway detection circuit and method, and relates to batteries. The thermal runaway detection circuit includes: a sensing module including a sensing cable; a detection module connected to the sensing cable and including at least one set of voltage dividing resistors; a processing module connected to the detection module, wherein the processing module is configured to obtain thermal runaway detection data, and determine whether thermal runaway occurs in the battery pack based on the thermal runaway detection data, wherein the thermal runaway detection data includes battery pack data and sampled data collected from sampling points, and the sampling points are disposed between the two connected voltage dividing resistor sets. The technical solutions in the present disclosure can improve safety of the battery pack.

公开(公告)号：US11251500B2

公开(公告)日：2022-02-15

申请号：US16970180

申请日：2019-09-23

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xianchun Zhu ,  Chao Zeng ,  Hua Cao ,  Chong Wang

IPC: H01M50/383 ,  H01M10/42 ,  H01M50/143 ,  H01M50/176 ,  H01M50/581

Abstract: This disclosure provides a battery module and a battery pack. The battery module includes: a battery set including a plurality of batteries arranged in an array, each of the batteries includes an explosion-proof valve; a cover plate disposed on the battery set; and a thermosensitive assembly disposed between the battery set and the cover plate, the thermosensitive assembly being connected with the cover plate, the thermosensitive assembly including a thermosensitive wire, and thermosensitive wire can provide a prompt signal indicating that the explosion-proof valve of the battery is burst. The battery module according to embodiments of the present disclosure can accurately and effectively transmit the information regarding thermal runaway occurring in the battery to the outside, such that the battery module has a performance of alerting the thermal runaway.

公开(公告)号：US11211667B2

公开(公告)日：2021-12-28

申请号：US16684595

申请日：2019-11-15

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Guoliang Hu ,  Chao Zeng ,  Xianchun Zhu ,  Quan Yang

IPC: H01M2/12 ,  H01M2/02 ,  H01M10/6557 ,  H01M10/613 ,  H01M50/30 ,  H01M50/258 ,  H01M10/48

Abstract: The present disclosure relates to a battery module and a battery pack. The battery module includes a plurality of secondary batteries arranged side by side, each of which includes a vent; a monitoring assembly, disposed above the plurality of secondary batteries and including a base plate and a monitoring wire, wherein the monitoring wire is coupled to the base plate; the monitoring wire is disposed corresponding to positions of the vents of the plurality of secondary batteries, and can be broken off when any of the vents bursts, so as to monitor a state of the battery module.

公开(公告)号：US11152674B2

公开(公告)日：2021-10-19

申请号：US17136055

申请日：2020-12-29

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Guoliang Hu ,  Chao Zeng ,  Shaozhen Chen ,  Quan Yang

IPC: H01M50/581 ,  H01M50/209 ,  H01M50/317 ,  H01M50/593

Abstract: The present application relates to a battery module, which may include: a plurality of secondary batteries disposed in a row, the plurality of secondary batteries are provided with explosion-proof valves; an insulating plate disposed above the secondary batteries; a monitoring cable set connected with the insulating plate, and the monitoring cable set is corresponding to a position of each of the explosion-proof valves; the monitoring cable set comprises two monitoring cables, and the monitoring cables includes wires and thermomelting insulating layers cladding the wires; when the explosion-proof valve of any of the secondary batteries explodes, the thermomelting insulating layers of the two monitoring cables melt, and two wires are in contact with each other and short-circuited.

公开(公告)号：US12027680B2

公开(公告)日：2024-07-02

申请号：US17130972

申请日：2020-12-22

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiao Wang ,  Chao Zeng ,  Jia Xu ,  Zhimin Dan ,  Yizhen Hou ,  Wei Zhang ,  Guoliang Hu

IPC: H01M10/48 ,  B60L58/24 ,  H01M10/42 ,  H01M50/569

CPC classification number: H01M10/486 ,  B60L58/24 ,  H01M10/4257 ,  B60L2250/10 ,  H01M2010/4271 ,  H01M50/569

Abstract: This application provides a method, an apparatus, a system for detecting battery thermal runaway, and a battery management unit. The method includes: obtaining an output signal of an air pressure sensor located in a battery pack, and obtaining parameter information of the battery pack; determining state information of the air pressure sensor based on the output signal of the air pressure sensor; and generating an alarm signal indicating occurrence of thermal runaway in the battery pack based on the state information of the air pressure sensor and the parameter information of the battery pack. In this application, the thermal runaway detection for the battery pack may be implemented by considering parameter information of both the air pressure sensor and the battery pack, improving the reliability of the thermal runaway detection for the battery pack, reducing the probability of false positives and false negatives, and improving driving safety.