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New energy battery box containing water-based stone-impact-resistant coating

An anti-stone attack and new energy technology, applied in coatings, fire-resistant coatings, battery pack components, etc., can solve problems such as easy to be struck by stones, short service life, delamination, etc., to prevent damage to the coating and reduce vibration. Effects of waves and sound waves, noise reduction

Active Publication Date: 2021-05-28
DONGGUAN POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in order to prevent the exterior coating of the battery box from being broken down by stones when the vehicle is driving, and to ensure that the battery is in good condition, the current automotive industry mostly uses PVC coatings to coat the battery box, but this method is prone to VOCs and is easily caused by stones. Delamination, short service life

Method used

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  • New energy battery box containing water-based stone-impact-resistant coating
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  • New energy battery box containing water-based stone-impact-resistant coating

Examples

Experimental program
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Effect test

preparation example Construction

[0036] In the present embodiment, the preparation method of each part of the acrylate rubber emulsion comprises the steps:

[0037] (A1), 30-50 parts by weight of acrylate monomer and 0.15-2.5 parts by weight of allyl methacrylate are uniformly mixed, and 30-50 parts by weight of sodium dodecylbenzenesulfonate with a concentration of 0.1-2wt% are added In the solution, acrylate mixed liquid is obtained after dispersion; 0.03-0.5 parts by weight of initiator, 0.03-1 parts by weight of sodium dodecylbenzenesulfonate and 30-50 parts by weight of water are uniformly mixed to obtain a diluted aqueous solution;

[0038] (A2), under the conditions of continuously stirring and keeping the temperature at 70-85°C, add the acrylate mixed solution into the diluted aqueous solution, and react for 2-3 hours to obtain the acrylate rubber emulsion;

[0039] Wherein, the acrylate monomer is at least one of methyl acrylate, ethyl acrylate and n-propyl acrylate; the initiator is benzoyl peroxide...

Embodiment 1

[0044] Such as Figure 1-3 As shown, a new energy battery case containing a water-based anti-stone chip coating includes an upper case 1 and a lower case 2 connected to the upper case 1, and the inner wall of the upper case 1 is sequentially compounded with first The anti-stone-damping water-based damping coating 3 and the first normal-temperature high-performance water-based damping coating 4, the inner wall of the lower box 2 is sequentially compounded with the second anti-stone-damping water-based damping coating 5 and the second normal-temperature high-performance water-based damping coating Layer 6.

[0045] The thicknesses of the first stone-damping water-resistant damping coating 3 and the second rock-hammering water-resistant damping coating 5 are both 1.3-2.0 mm.

[0046] Both the first anti-stone-damping water-based damping coating 3 and the second anti-stone-hammering water-based damping coating 5 are formed by coating and drying the water-based PVC paint doped wit...

Embodiment 2

[0051] The difference between this embodiment and embodiment 1 is:

[0052] The water-based PVC paint doped with calcium carbonate includes the following raw materials in parts by weight: 60 parts of water-based PVC resin blended emulsion, 0.5 part of defoamer, 0.5 part of dispersant, 45 parts of modified calcium carbonate filler, 0.5 part of thickener 8 parts and 8 parts water. The preparation method of the water-based PVC paint doped with calcium carbonate is to sequentially add water, water-based PVC resin blend emulsion, dispersant, modified calcium carbonate filler, defoamer and thickener under stirring condition and mix uniformly.

[0053] The water-based PVC resin blend emulsion is formed by mixing E-2302 water-based PVC emulsion and self-drying water-based PVC resin SGR-2235W in a weight ratio of 4:1; the preparation method of each part of the modified calcium carbonate filler is by weight Add 20 parts of titanate coupling agent TMC-201 and 40 parts of calcium carbona...

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Abstract

The invention relates to the technical field of new energy batteries, in particular to a new energy battery box containing a water-based stone-impact-resistant coating, the new energy battery box comprises an upper box body and a lower box body connected with the upper box body, the inner wall of the upper box body is sequentially compounded with a first stone-impact-resistant water-based damping coating and a first normal-temperature high-performance water-based damping coating, a second stone-impact prevention water-based damping coating and a second normal-temperature high-performance water-based damping coating are sequentially compounded on the inner wall of the lower box body; when the upper box body is hit by stones, the viscoelasticity of the first stone-hit-preventing water-based damping coating and the first normal-temperature high-performance water-based damping coating can effectively absorb destructive force generated by stone hit through the upper box body, vibration energy is absorbed, vibration waves and sound waves are weakened, the mechanical vibration attenuation effect is effectively improved, noise is reduced, stone impact is prevented, the situation that stones directly hit the coating to damage the coating is avoided, and therefore the service life is prolonged, and the anti-fatigue effect is improved.

Description

technical field [0001] The invention relates to the technical field of new energy batteries, in particular to a new energy battery case with an aqueous anti-stone chipping coating. Background technique [0002] As an emerging industry, new energy vehicles are the direction of the future development of the automotive industry. As the core component of new energy vehicles, batteries affect the overall performance and safety of vehicles. Therefore, in order to prevent the exterior coating of the battery box from being punctured by stones when the vehicle is running, and to ensure that the battery is in good condition, the automotive industry currently uses PVC coatings to coat the battery box, but this method is prone to VOC and is easily caused by stones. Delamination, short service life. Contents of the invention [0003] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the present invention is to provide a new energy battery case wi...

Claims

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Application Information

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IPC IPC(8): C09D127/06C09D7/62C09D133/04C09D175/04C09D133/08H01M50/227
CPCC09D127/06C09D7/62C09D133/04C09D175/04C09D133/08C09D5/18C08L2205/025C08L2205/03C08K2003/265C08K2201/005C08L2205/035C08L2201/08C08L2203/20C08L27/06C08K9/04C08K3/26C08L75/04C08L33/08C08K3/34
Inventor 曹会元周铭斌罗雅婷林志睿
Owner DONGGUAN POLYTECHNIC
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