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Explosionproof lithium battery compartment

A lithium battery and cabin technology, which is applied in the field of explosion-proof lithium battery compartment, can solve the problems that lithium batteries are easily flammable, easily guided by external flames and even explode, and achieve the effects of avoiding deliquescence, avoiding blockage and increasing air permeability.

Inactive Publication Date: 2017-11-17
吕海党
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when lithium batteries are overloaded, they are easy to burn or are easily guided by external flames or even explode, so there is an urgent need for an explosion-proof lithium battery compartment

Method used

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  • Explosionproof lithium battery compartment
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  • Explosionproof lithium battery compartment

Examples

Experimental program
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Effect test

Embodiment 1

[0020] This embodiment provides an explosion-proof lithium battery compartment, such as figure 1 , 2 , 3, including a hollow cabin body 1, the surface of the inner wall of the cabin body 1 is provided with a recessed accommodation groove 2, and a cover sheet (metal sheet can be selected) 3 is provided at the opening of the accommodation groove 2, and an array of rows is arranged on the cover sheet 3. The pores 31 of the cloth; the holding tank 2 is filled with sodium bicarbonate powder. The cabin body also includes other necessary structures, such as openings for passage of lines. The inner wall of the cabin is also provided with pressure relief through holes 4 distributed in an array; the outside of the pressure relief through holes is covered with a latex film 41 . The latex film expands as Figure 4 shown.

Embodiment 2

[0022] This embodiment provides an explosion-proof lithium battery compartment, with respect to Embodiment 1, such as Figure 5 Preferably, there is an installation area around the edge of the receiving tank in this embodiment, and a plurality of blind holes 51 are provided on the installation area; bosses 52 are provided on the positions of the cover corresponding to the blind holes, and the cover is embedded through the bosses. The blind hole is internally fixed; the boss is in interference fit with the blind hole.

[0023] Preferably, the radius of the air hole decreases along the outer side of the cover sheet toward the receiving groove; the radius of the air hole at its widest position is 5-10 times that of the narrowest position.

Embodiment 3

[0025] This embodiment provides an explosion-proof lithium battery compartment, the structure of which is consistent with that of Embodiment 2.

[0026] In particular, the containing tank of this embodiment is also filled with superabsorbent resin powder and activated carbon powder, and the mass ratio of superabsorbent resin, activated carbon powder and sodium bicarbonate powder is 0.2:1:7. In this embodiment, the superabsorbent resin powder is an acrylate superabsorbent resin.

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Abstract

The invention discloses an explosionproof lithium battery compartment. The explosionproof lithium battery compartment comprises a hollow compartment body and is characterized in that sunken accommodating grooves are formed in a surface of an inner wall of the compartment body, cover pieces are arranged at openings of the accommodating grooves, air holes are formed in the cover piece and are arranged in an array way, the accommodating grooves are filled with sodium bicarbonate powder, pressure relief through holes are also formed in the inner wall of the compartment body and are arranged in an array way, and an emulsion thin film covers and is pasted at outer sides of the pressure relief through holes. The accommodating grooves filled with the sodium bicarbonate powder are particularly formed in the inner wall of the compartment body, a carbon dioxide gas is decomposed from sodium bicarbonate and wraps a lithium battery part in the compartment body once a temperature is excessively high, and combustion is prevented from causing explosion; and particularly, the pressure relief holes are also formed, residual air can be discharged out of the pressure relief holes when internal pressure is excessively high due to release of carbon dioxide in the compartment body.

Description

technical field [0001] The invention relates to a lithium battery compartment, in particular to an explosion-proof lithium battery compartment. Background technique [0002] In large-scale electrical equipment (such as electric vehicles and mopeds), the lithium battery pack and its control module need to be packaged in the lithium battery compartment to meet the sealing requirements. However, when lithium batteries are overloaded, they are easy to burn or be easily guided by external flames or even explode, so there is an urgent need for an explosion-proof lithium battery compartment. Contents of the invention [0003] In view of this, the present invention provides an explosion-proof lithium battery compartment. [0004] The purpose of the present invention is achieved by the following technologies: a fireproof lithium battery compartment, comprising a hollow compartment, characterized in that: the surface of the inner wall of the compartment is provided with a recessed ...

Claims

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Application Information

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IPC IPC(8): H01M2/10H01M2/12H01M10/052H01M50/20H01M50/249H01M50/342H01M50/375
CPCH01M10/052H01M50/20H01M50/342H01M50/375Y02E60/10
Inventor 吕海党
Owner 吕海党
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