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Flame-retardant and explosion-proof new energy automobile battery shell and preparation method thereof

A new energy vehicle, flame retardant and explosion-proof technology, applied in the direction of isolation of batteries and their environment, protective equipment, battery pack components, etc., can solve problems such as safety accidents and explosions, and achieve the effect of improving production efficiency and reducing processing procedures.

Inactive Publication Date: 2022-06-24
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When thermal runaway occurs inside the battery pack, the violent chemical reaction inside the battery cell will release a lot of heat, smoke, gas, and then explode, which constitutes a safety accident

Method used

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  • Flame-retardant and explosion-proof new energy automobile battery shell and preparation method thereof
  • Flame-retardant and explosion-proof new energy automobile battery shell and preparation method thereof
  • Flame-retardant and explosion-proof new energy automobile battery shell and preparation method thereof

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Experimental program
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Effect test

specific Embodiment approach

[0036] The flame-retardant layer 1 is made of fiber-reinforced composite material;

[0037] No. 1 explosion-proof layer 2 is made of aluminum alloy;

[0038] The second explosion-proof layer is made of adhesive.

[0039] A preparation method of a flame-retardant and explosion-proof new energy vehicle battery shell, comprising the following steps:

[0040] S1. First, select the materials for preparing the battery case, including the No. 1 explosion-proof layer 2 made of aluminum alloy, the flame-retardant layer 1 made of fiber-reinforced composite material, and the No. 2 explosion-proof layer made of adhesive;

[0041] S2, then design the battery shell, and set the direction of the layup according to the needs;

[0042] S3. Take one layer of No. 1 explosion-proof layer 2 as the inner core, and attach the preheated side of No. 2 explosion-proof layer to the upper and lower sides of No. 1 explosion-proof layer 2, and then attach the flame-retardant layer 1 to No. 1 explosion-pr...

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Abstract

The invention discloses a flame-retardant and explosion-proof new energy automobile battery shell and a preparation method thereof. The flame-retardant and explosion-proof new energy automobile battery shell comprises a flame-retardant layer, a first explosion-proof layer and a second explosion-proof layer, the number of the flame-retardant layers is larger than or equal to two, the number of the first anti-explosion layers is larger than or equal to one, and the number of the second anti-explosion layers is larger than or equal to two. The first anti-explosion layer is an inner core, the flame-retardant layers are fixed to the upper end and the lower end of the first anti-explosion layer, and the first anti-explosion layer and the flame-retardant layers are arranged at intervals, laid layer by layer and can be stacked layer by layer; the first anti-explosion layer is attached to the flame-retardant layer through a second anti-explosion layer. According to the invention, the flame-retardant layer is prepared by utilizing the low thermal conductivity of the fiber reinforced composite material, so that heat is prevented from being transferred from the surface of the material to a matrix, oxygen is isolated, and a flame-retardant effect is achieved; the first anti-explosion layer is made of an adhesive, energy is absorbed, crack extension is prevented, and explosion prevention can be effectively carried out.

Description

technical field [0001] The invention relates to the technical field of new energy vehicles, in particular to a flame-retardant and explosion-proof new energy vehicle battery case and a preparation method thereof. Background technique [0002] With the non-renewable consumption of traditional petrochemical energy and the sharp increase in the number of automobiles, it has promoted the development of society and economy and the improvement of human living standards, but it has also caused human beings to face severe energy shortages and environmental pollution problems. In order to promote energy saving and environmental protection, new energy vehicles have become the main direction of future development. [0003] With the increase in the number of new energy vehicles, the corresponding safety issues have become increasingly prominent. Due to the use of high-energy chemical substances and energy concentration, the safety performance of high-energy batteries has not been satis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/231H01M50/24H01M50/244H01M50/249A62C2/06A62C3/16B32B15/20B32B15/04B32B33/00B32B7/12B32B37/12B32B37/06B32B37/10
CPCH01M50/231H01M50/24H01M50/244H01M50/249A62C3/16A62C2/06B32B15/20B32B15/04B32B33/00B32B7/12B32B37/12B32B37/06B32B37/10B32B2457/10B32B2605/08B32B2307/3065B32B2307/56B32B2307/558B32B2307/718B32B2307/7244B32B2571/02
Inventor 何茜平张安静黑雪纯庄智淇
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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