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Battery safety system coupled with thermal management and thermal runaway suppression

A technology for battery safety and thermal runaway, applied in secondary batteries, battery circuit devices, and secondary battery repair/maintenance, etc., can solve the problems of increasing fire response response and personnel evacuation time, inability to take into account thermal management and fire fighting, etc. Achieve the effect of improving reliability and optimizing system functions

Pending Publication Date: 2021-01-29
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the defect that the existing on-board battery safety system cannot take into account both thermal management and fire protection, this invention proposes a battery safety system coupled with thermal management and thermal runaway suppression, which improves the safety of electric vehicle battery packs, increases fire response and personnel evacuation time

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  • Battery safety system coupled with thermal management and thermal runaway suppression
  • Battery safety system coupled with thermal management and thermal runaway suppression
  • Battery safety system coupled with thermal management and thermal runaway suppression

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Embodiment Construction

[0034] The present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments, and the purpose and effect of the present invention will become clearer. It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the present invention.

[0035] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood and meant by one of ordinary skill in the field of the invention. The terms used herein in the specification are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, 'first', 'second', etc. are used herein to distinguish objects, but these objects are not limited by the above terms.

[0036] Such as Figure 1~3 As shown, the battery safety system coupled with thermal management and thermal runaway suppression of ...

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Abstract

The invention discloses a battery safety system coupled with thermal management and thermal runaway suppression. The system comprises a box body, and an intelligent control module, a battery state monitoring module, a dangerous gas detection module and an active thermal management and passive fire-fighting module which are arranged in the box body and are electrically connected through wires. Holes and diaphragms are arranged on a cooling liquid conveying pipeline, so that a passive fire-fighting function is achieved. By modifying the structure of an active thermal management liquid conveyingpipeline and optimizing the system function, the temperature of single batteries, the overall temperature of a battery pack, the voltage and current data of the battery pack and the concentration of dangerous gas are monitored in real time; and thermal management is carried out on normal charging and discharging of the battery pack, the single batteries with abnormal temperature are cooled, thermal runaway fire disasters are inhibited, and danger prompting and early warning are carried out on a user through an intelligent control system.

Description

technical field [0001] The invention relates to the technical field of battery thermal safety, in particular to a battery safety system coupled with thermal management and thermal runaway suppression. Background technique [0002] As an energy carrier, lithium-ion batteries are widely used in various fields, especially new energy electric vehicles. With the substantial increase in the number of new energy electric vehicles, the accident rate is also increasing year by year. Since the power battery pack used in electric vehicles is a high-density energy storage device, once the battery has an abnormal thermal runaway condition, it is very likely to affect the entire battery pack, and then develop into a vehicle fire or even cause an explosion accident. In order to increase the performance and cruising range of new energy electric vehicles, power battery packs are usually assembled from tens, hundreds or even thousands of single cells. The quality uniformity of the single ba...

Claims

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Application Information

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IPC IPC(8): H01M10/42H01M10/48H01M10/613H01M10/635H01M10/653H01M10/6551H01M10/6555H01M10/6568
CPCH01M10/486H01M10/488H01M10/613H01M10/6551H01M10/6555H01M10/6568H01M10/635H01M10/653H01M10/4257H01M2010/4271H01M2010/4278Y02E60/10
Inventor 孔得朋杜金平平王功全李丹张越
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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