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：US20210111443A1

公开(公告)日：2021-04-15

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

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：US20200350770A1

公开(公告)日：2020-11-05

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

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.