A battery thermal runaway warning system and method

An early warning system and thermal runaway technology, applied in the direction of batteries, secondary batteries, battery circuit devices, etc., can solve the problem of inability to early warning of thermal runaway, and achieve the effect of avoiding spontaneous combustion accidents and improving safety.

Active Publication Date: 2021-04-27
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Therefore, the detection technologies and detection parameters currently available on the market can only provide early warnings for thermal runaway in the middle and late stages, but cannot provide early warnings for thermal runaway

Method used

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  • A battery thermal runaway warning system and method
  • A battery thermal runaway warning system and method
  • A battery thermal runaway warning system and method

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Embodiment Construction

[0035] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0036] like figure 1 As shown, a battery thermal runaway warning system includes: a thermal runaway data diagnosis center, a thermal runaway warning device, a signal monitoring unit, a pressure detection device arranged at both ends of the battery module to be monitored, and a charging circuit of the module to be monitored charging switch; the thermal runaway early warning device includes a controller and an alarm; the pressure detection device is connected to a signal monitoring unit through a signal line, and the signal monitoring unit is connected to a controller through a signal line, and the controller is respectively connected to the Alarm, thermal runaway data diagnosis center connection and charging switch connection;

[0037] The ...

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Abstract

The invention discloses a battery thermal runaway early warning system and method. The system includes a thermal runaway data diagnosis center, a thermal runaway early warning device, a signal monitoring unit, a pressure detection device arranged at both ends of a battery module to be monitored, and a battery module to be monitored. The charging switch in the charging circuit of the module; the thermal runaway warning device includes a controller and an alarm; the pressure detection device is connected to a signal monitoring unit, the signal monitoring unit is connected to a controller, and the controller is respectively connected to an alarm device, thermal runaway data diagnostic center connection and charging switch connection. The invention provides a battery thermal runaway early warning system and method, which can effectively realize the early warning of the thermal runaway of the battery module and help to improve the safety of the charging process of the battery module.

Description

technical field [0001] The invention relates to the monitoring of battery modules, in particular to a battery thermal runaway early warning system and method. Background technique [0002] For now, battery management systems rely on monitoring parameters (such as voltage, current, temperature, and gas) to ensure safe, reliable battery operation. However, these parameters can only be used for late warning and judgment after the occurrence of thermal runaway, and cannot be used for early warning and judgment of thermal runaway. The thermal runaway process of lithium batteries is firstly the occurrence of side reactions inside the battery. The side reactions lead to changes in the internal battery structure and an increase in internal temperature. The battery expands and deforms, and then the detectable gas escapes. It shows that the temperature rises, and finally the battery thermal runaway produces smoke and spontaneous combustion. [0003] Therefore, the currently availabl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/42H01M10/44H01M10/48
CPCH01M10/4207H01M10/4257H01M10/441H01M10/482H01M10/488H01M2010/4271H01M2200/10H01M2200/20H01M2220/20Y02E60/10
Inventor 孙超徐培培
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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