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Encapsulating material of new energy automobile battery and preparation method thereof

A technology for new energy vehicles and potting materials, applied in the field of new energy vehicle battery potting materials and their preparation, can solve problems such as thermal conductivity and mechanical strength to be improved, achieve excellent mechanical properties and thermal conductivity, and reduce fire and explosion. , the effect of excellent high and low temperature resistance

Inactive Publication Date: 2018-11-30
清远市敬威能源开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the thermal conductivity and mechanical strength of materials used for potting batteries of new energy vehicles still need to be improved

Method used

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  • Encapsulating material of new energy automobile battery and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] This example 1 provides a preparation method of hexadecyltrimethoxysilane modified alumina, which includes the following steps: put the alumina with a particle size of 5-15 μm in an electrothermal constant-temperature blast drying oven, and dry it at 105 It was dried at ℃ for 3 hours, and then poured into a high-speed mixer with a rotation speed of 1500r / min. Dilute hexadecyltrimethoxysilane with a mixed solvent of isopropanol and toluene to a concentration of 20%, spray it into the above-mentioned high-speed mixer under stirring, raise the temperature to 110°C, and continue stirring for 30 minutes. Bake for 4 hours, seal and store for later use to obtain the hexadecyltrimethoxysilane-modified alumina. The dosage ratio of the isopropanol and toluene is 1:1; the dosage of the cetyltrimethoxysilane is 1.5% of the mass of alumina.

Embodiment 2

[0031] This embodiment 2 provides a new energy vehicle battery potting material, which includes the following components by weight: 100 parts of vinyl-terminated silicone oil, 4 parts of hydrogen-containing silicone oil, 200 parts of cetyltrimethoxysilane modified alumina 0.1 part of platinum catalyst, 35 parts of aluminum diethylphosphinate, 4 parts of fumed silica, 0.8 part of hexamethyldisilazane, 3 parts of peroxide curing agent and dibutyl phthalate 1.5 servings. In terms of mass percentage, the peroxide vulcanizing agent is composed of 25% dibenzoyl peroxide and 75% bis-tert-butylperoxycumene.

[0032] The preparation method of described new energy vehicle battery potting material, it comprises the steps:

[0033] (1) Base material: Add vinyl-terminated silicone oil, hexamethyldisilazane and fumed silica into a kneader, knead for 2.5 hours, add 125g of distilled water, knead for 12 minutes, heat up to 160°C, Dehydration under MPa conditions for 0.8h to obtain the base ...

Embodiment 3

[0038]This embodiment 3 provides a new energy vehicle battery potting material, which includes the following components by weight: 100 parts of vinyl-terminated silicone oil, 2 parts of hydrogen-containing silicone oil, 150 parts of hexadecyltrimethoxysilane modified alumina 0.05 parts of platinum catalyst, 20 parts of aluminum diethylphosphinate, 2 parts of fumed silica, 0.5 parts of hexamethyldisilazane, 1 part of peroxide curing agent and dibutyl phthalate 0.5 servings. In terms of mass percentage, the peroxide vulcanizing agent is composed of 15% dibenzoyl peroxide and 85% bis-tert-butylperoxycumene.

[0039] The preparation method of described new energy vehicle battery potting material, it comprises the steps:

[0040] (1) Base material: Add vinyl-terminated silicone oil, hexamethyldisilazane and fumed silica into a kneader, knead for 2 hours, add 50g of distilled water, knead for 10 minutes, heat up to 150°C, and then knead at a vacuum of 0.1MPa Dehydration under cond...

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Abstract

The invention discloses an encapsulating material of a new energy automobile battery. The encapsulating material is prepared from the following components in parts by weight: 100 parts of vinyl-terminated silicone oil, 2 to 6 parts of hydrogen-containing silicone oil, 150 to 300 parts of modified aluminum oxide, 0.05 to 0.15 part of a platinum catalyst, 20 to 50 parts of a halogen-free flame retardant, 2 to 5 parts of white carbon black, 0.5 to 1 part of hexamethyl disilazane, 1 to 5 parts of a peroxide vulcanizing agent and 0.5 to 3 parts of a plasticizer, wherein the peroxide vulcanizing agent is prepared from dibenzoyl peroxide and bis(tert-butyl peroxy isopyl)benzene. The encapsulating material prepared through invention formula disclosed by the invention is nontoxic, has no release ofan irritant gas and is environment-friendly and safe, and not only excellent high / low temperature resistance, excellent weather resistance and excellent electric insulation performance are obtained,but also excellent mechanical performance and excellent heat conduction are obtained; during a working process, an effective protection function on a battery is achieved, heat of the battery can be dissipated in time, high-security protection can be provided for the new energy automobile battery, the safety of the battery is increased, the service life of the battery is increased, and occurrence of the accidents of catching a fire and blasting of the new energy automobile battery can be effectively reduced.

Description

technical field [0001] The invention relates to a battery potting material, in particular to a new energy vehicle battery potting material and a preparation method thereof. Background technique [0002] New energy vehicles refer to the use of unconventional vehicle fuels as power sources (or the use of conventional vehicle fuels, the use of new vehicle power devices), integrated vehicle power control and advanced technology in driving, the formation of advanced technical principles, with Automobiles with new technology and new structure. With the shortage of energy and the increasingly severe environmental pollution, new energy vehicles have become a hot spot in today's automotive field. [0003] As the power source of new energy vehicles, battery fire and explosion are one of the main causes of new energy vehicle accidents. An effective way to reduce such accidents is to use fire-resistant and flame-retardant battery potting materials to improve the safety of power batter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L83/05C08K13/06C08K9/06C08K3/22C08K3/36C08K5/14C08K5/12C08K5/5313
CPCC08K2003/2227C08L83/04C08L2201/08C08L2203/20C08L2205/025C08K13/06C08K9/06C08K3/22C08K3/36C08K5/14C08K5/12C08K5/5313
Inventor 刘增彬
Owner 清远市敬威能源开发有限公司
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