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

Method used

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  • Explosionproof lithium battery compartment
  • Explosionproof lithium battery compartment
  • Explosionproof lithium battery compartment

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0019] Example 1

[0020] This embodiment provides an explosion-proof lithium battery compartment, such as figure 1 , 2 , 3, including the hollow cabin body 1, the surface of the inner wall of the cabin body 1 is provided with a recessed accommodating groove 2, and the opening of the accommodating groove 2 is provided with a cover sheet (a metal sheet is optional) 3, and the cover sheet 3 has an array arrangement The pores 31 of the cloth; the containing tank 2 is filled with sodium bicarbonate powder. The cabin also includes other necessary structures, such as openings for lines to pass through. The inner wall of the cabin body 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 adhered. After the latex film expands like Figure 4 Shown.

Example Embodiment

[0021] Example 2

[0022] This embodiment provides an explosion-proof lithium battery compartment. Compared with Embodiment 1, such as Figure 5 Preferably, the edge of the receiving groove in this embodiment is surrounded by a mounting area, and a plurality of blind holes 51 are provided on the mounting area; the cover sheet is provided with a boss 52 at a position corresponding to the blind hole, and the cover sheet is embedded through the boss Fixed in the blind hole; the boss and the blind hole have an interference fit.

[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 widest position of the air hole is 5-10 times the radius of the narrowest position.

Example Embodiment

[0024] Example 3

[0025] This embodiment provides an explosion-proof lithium battery compartment whose structure is the same as that of the second embodiment.

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