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Battery module

A technology of battery modules and battery cores, applied to battery pack components, circuits, electrical components, etc.

Active Publication Date: 2021-04-23
TREND POWER TECH CHANGSHU INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, there is still room for further improvement of the existing structure

Method used

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Experimental program
Comparison scheme
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Embodiment Construction

[0051] According to an embodiment of the present invention, when an internal short circuit occurs in the battery core and an explosion flame erupts, the battery module has an automatic fire extinguishing device and does not need additional detectors and triggers for detection or triggering, which can automatically trigger the fire extinguishing function , so that the flame dissipates in the battery module, avoiding burning to adjacent battery cores, causing a secondary explosion of adjacent battery cores, and preventing the explosion flame from directly erupting to the outside of the battery module, igniting external equipment or substances, causing adjacent external equipment or Substance produces secondary combustion or explosion.

[0052] figure 2 A schematic diagram showing a battery module according to an embodiment of the present invention. Such as figure 2 As shown, according to an embodiment of the present invention, the battery module 200 includes a casing 210 , a...

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PUM

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Abstract

The invention provides a battery module. The battery module comprises a plurality of battery cells, a battery bracket, at least one fire extinguishing device and a shell; the battery bracket is used for fixing the battery cells; the fire extinguishing device is disposed adjacent to at least one end of the battery cells; the shell is used for containing the battery bracket, the fire extinguishing device and the battery cells; the fire extinguishing device comprises a packaging shell and a fire extinguishing agent, wherein the fire extinguishing agent is arranged in the packaging shell; a pressure valve structure is formed on the packaging shell; the pressure valve structure is of a structure which is broken due to the pressure of high-pressure gas generated in an abnormal battery cell in the battery cells when the abnormal battery cell is internally short-circuited and undergoes explosion flame eruption.

Description

technical field [0001] The present invention relates to a battery module, in particular to a battery module with a fire extinguishing device. Background technique [0002] Figure 1A An exploded view showing a prior art battery module. Such as Figure 1A As shown, the battery module 320 includes a plurality of cylindrical battery cells 321 , at least one cell holder 323 and a plurality of conductive sheets 324 . The bracket 323 defines a plurality of battery accommodating spaces for placing and fixing the battery cells 321 , and the battery cells 321 are stacked in the length direction x and the width direction z of the bracket 323 respectively. The conductive sheets 324 are respectively disposed on two ends of the battery cells 321 for connecting the battery cells 321 in parallel or in series to form a plurality of battery cell arrays. The conductive sheet 324 is welded on each battery cell 321 by welding to achieve the functions of series connection and parallel connecti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/258H01M50/213H01M50/244A62C3/16A62C35/02
CPCA62C3/16A62C35/02Y02E60/10
Inventor 傅世泽张志荣陈纬骏周正勤
Owner TREND POWER TECH CHANGSHU INC