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：US20200350536A1

公开(公告)日：2020-11-05

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

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：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：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.

公开(公告)号：US10985575B2

公开(公告)日：2021-04-20

申请号：US16555006

申请日：2019-08-29

Applicant: Contemporary Amperex Technology Co., Limited

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

IPC: H02J7/00 ,  G01R31/382 ,  G01R31/364 ,  G01K7/02

Abstract: The present disclosure provides a thermal runaway detection circuit and a method, which is directed to field of batteries. The circuit includes: a sensing module including a terminating resistor; a detection module including a first voltage dividing resistor set and a second voltage dividing resistor set; and 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. The thermal runaway detection data includes first sampled data and second sampled data. The technical solutions in the present disclosure can improve safety of the battery pack.