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Light-weight fireproof composite material battery box for automobile

A composite material, lightweight technology, applied in the direction of battery cover/end cover, battery pack components, battery box/jacket, etc., can solve the problems affecting the battery life of electric vehicles, low energy density, heavy weight, etc. Good thermal stability and weight saving effect

Inactive Publication Date: 2018-11-13
JIANGSU KAWEI AUTOMOBILE IND GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Lightweight is an important direction of automobile development at present, and it is an important means of energy saving and emission reduction. As the battery box cover of the key part of the car, its light weight is also an important way to improve the mileage of the vehicle. The existing battery box cover adopts the traditional It is made of welded metal sheet metal, and its weight is relatively heavy, resulting in low energy density, which affects the battery life of electric vehicles, and the metal battery box cover needs subsequent insulation treatment, such as adding insulating coatings, insulating pads, insulating plates, etc. to further increase the weight , and this kind of box cover material itself needs to carry out various fire prevention treatments in the later stage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: A lightweight fireproof composite battery box cover for automobiles, including a box cover body, the box cover body is composed of an outer glass fiber layer, a basalt fiber layer, a carbon fiber layer, a ceramic fiber layer, and an asbestos fiber layer and aluminum plate composition.

[0018] Preferably, an aluminum oxidation treatment film is provided on the surface of the aluminum plate.

[0019] Preferably, the outer side of the outer glass fiber layer is provided with PVDF resin varnish.

[0020] Preferably, the thickness of the box cover body is 0.3 cm.

[0021] A method for preparing a lightweight fireproof composite battery box cover for automobiles, comprising the following steps:

[0022] S1): Firstly, the molten glass is made into a glass ball or rod with a diameter of 20mm, and then reheated and remelted to make a very fine fiber with a diameter of 10μm, and finally pressed into a glass fiber layer;

[0023] S2): After the basalt rock materi...

Embodiment 2

[0026] Embodiment 2: A light-weight fireproof composite material battery box cover for automobiles, including a box cover body, and the box cover body is composed of an outer glass fiber layer, a basalt fiber layer, a carbon fiber layer, a ceramic fiber layer, and an asbestos fiber layer and aluminum plate composition.

[0027] Preferably, an aluminum oxidation treatment film is provided on the surface of the aluminum plate.

[0028] Preferably, the outer side of the outer glass fiber layer is provided with PVDF resin varnish.

[0029] Preferably, the thickness of the box cover body is 0.4 cm.

[0030] A method for preparing a lightweight fireproof composite battery box cover for automobiles, comprising the following steps:

[0031] S1): Firstly, the molten glass is first made into a glass ball or rod with a diameter of 20mm, then heated and remelted to make a very fine fiber with a diameter of 40μm, and finally pressed into a glass fiber layer;

[0032] S2): After the basa...

Embodiment 3

[0035] Embodiment 3: A light-weight fireproof composite material battery box cover for automobiles, including a box cover body, and the box cover body is composed of an outer glass fiber layer, a basalt fiber layer, a carbon fiber layer, a ceramic fiber layer, and an asbestos fiber layer and aluminum plate composition.

[0036] Preferably, an aluminum oxidation treatment film is provided on the surface of the aluminum plate.

[0037] Preferably, the outer side of the outer glass fiber layer is provided with PVDF resin varnish.

[0038] Preferably, the thickness of the box cover body is 0.6 cm.

[0039] A method for preparing a lightweight fireproof composite battery case cover for automobiles, characterized in that it comprises the following steps:

[0040] S1): Firstly, the molten glass is first made into a glass ball or rod with a diameter of 20mm, and then reheated and remelted to make a very fine fiber with a diameter of 70μm, and finally pressed into a glass fiber layer...

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Abstract

The invention provides a light-weight fireproof composite material battery box for an automobile. The light-weight fireproof composite material battery box comprises a box cover body, wherein the boxcover body consists of an outer glass layer, a basalt fiber layer, a carbon fiber layer, a ceramic fiber layer, an asbestos fiber layer and an aluminum plate, the surface of the aluminum plate is provided with aluminum oxide film, one side of the outside of the outer glass fiber layer is provided with PVDF resin varnish, the thickness of the box cover is 0.3-0.6 cm, the weight of the battery box cover can be greatly decreased by adopting the outer glass layer, the basalt fiber layer, the carbon fiber layer, the ceramic fiber layer, the asbestos fiber layer, the aluminum plate and other composite materials, the asbestos fiber layer can play good insulating and fireproof properties, and the ceramic fiber layer makes the battery box have the advantages of being light in weight, resistant to high temperature, good in heat stability and the like.

Description

technical field [0001] The invention relates to the technical field of a lightweight fireproof composite material battery case cover for automobiles, in particular to a lightweight fireproof composite material battery case cover for automobiles. Background technique [0002] Lightweight is an important direction of automobile development at present, and it is an important means of energy saving and emission reduction. As the battery box cover of the key part of the car, its light weight is also an important way to improve the mileage of the vehicle. The existing battery box cover adopts the traditional It is made of welded metal sheet metal, and its weight is relatively heavy, resulting in low energy density, which affects the battery life of electric vehicles, and the metal battery box cover needs subsequent insulation treatment, such as adding insulating coatings, insulating pads, insulating plates, etc. to further increase the weight , and this kind of box cover material ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/20B32B9/00B32B9/04B32B17/02H01M2/04
CPCB32B5/02B32B5/26B32B9/00B32B9/041B32B15/14B32B15/20B32B2262/101B32B2262/105B32B2262/106B32B2262/108B32B2307/206B32B2307/3065B32B2307/308B32B2307/718B32B2605/08H01M50/147Y02E60/10
Inventor 孟明华
Owner JIANGSU KAWEI AUTOMOBILE IND GRP CO LTD
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