A kind of organosilicon gel material for power battery case sealing and preparation method thereof

A technology for power batteries and gel materials, which is applied in the directions of adhesives, non-polymer adhesive additives, adhesive additives, etc., can solve problems such as difficulty in applying power battery box sealing.

Active Publication Date: 2020-10-02
广东皓明有机硅材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Silicone potting adhesives have good flame retardancy and flow properties by using nitrogen-heterocyclic polycyclic siloxanes with specific structures as adhesion promoters, and have excellent adhesion properties (chemical adhesion properties) to substrates. It is widely used in the field of general industrial potting protection, but it is difficult to apply to the sealing of power battery boxes

Method used

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  • A kind of organosilicon gel material for power battery case sealing and preparation method thereof
  • A kind of organosilicon gel material for power battery case sealing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The preparation of embodiment one base material

[0039] 85 parts of straight-chain vinyl polydimethylsiloxane with a viscosity of 40000mpa·s and a vinyl content of 0.06wt%, and straight-chain vinyl polydimethylsiloxane with a viscosity of 500mpa·s and a vinyl content of 0.4wt% 15 parts of dimethyl siloxane, 80 parts of aluminum hydroxide with an average particle size of 3 μm were added to a vacuum kneader and mixed evenly, and then dehydrated and blended for 60 minutes under the conditions of a temperature of 140 ° C and a vacuum of -0.08 MPa to obtain Binder.

Embodiment 2

[0040] The preparation of embodiment two base material

[0041] 80 parts of straight-chain vinyl polydimethylsiloxane with a viscosity of 60000mpa·s and a vinyl content of 0.05wt%, and straight-chain vinyl polydimethylsiloxane with a viscosity of 1000mpa·s and a vinyl content of 0.25wt% 20 parts of dimethylsiloxane and 60 parts of magnesium hydroxide with an average particle size of 10 μm are added to a vacuum kneader and mixed evenly, and then dehydrated and blended for 60 minutes at a temperature of 120 ° C and a vacuum of -0.08 MPa to obtain Binder.

Embodiment 3

[0044] Example three A component

[0045] Component A includes the base material of Example 1 and a platinum catalyst, wherein the base material is 100 parts, the platinum catalyst is a vinyl siloxane complex of chloroplatinic acid, and the mass of platinum in the platinum catalyst is 15 ppm of the mass of component A.

[0046] The preparation method of component A: add a platinum catalyst to the base material prepared in Example 1, and stir evenly to prepare component A.

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Abstract

The invention provides an organic silicon gel material for sealing a power battery box body. Double-component organic silicon gel is prepared from a component A and a component B, which have the samemass, wherein the component A is prepared from a base material and a platinum catalyst; the content of the base material is 100 parts and the mass of platinum in the platinum catalyst is 1 to 500ppm of the mass of the component A; the component B is prepared from a base material, a crosslinking agent and an inhibitor, wherein the content of the base material is 100 parts, the content of the crosslinking agent is 0.1 to 20 parts and the content of the inhibitor is 0.001 to 0.5 part. The organic silicon gel material provided by the invention is applicable to the environment sealing and protection effect on the power battery box body, and has the advantages of capability of realizing automated construction, easiness for repairing, capability of meeting IPX8 waterproof and UL94 flame-retardingrequirements of the power battery box body and the like.

Description

technical field [0001] The invention belongs to the technical field of organic silicon materials, and in particular relates to an organic silicon gel material for sealing a power battery case and a preparation method thereof. Background technique [0002] The power battery is a power source that provides power for electric vehicles, electric trains, etc., and the electric energy that needs to be provided is often large, requiring high energy and power, and has high requirements for safety. Since the rapid development of the new energy vehicle industry in 2015, the cases of repairing and even scrapping power batteries due to water ingress have gradually increased. Large battery manufacturers have conducted various studies on the sealing scheme of the power battery box, and have made some progress. [0003] At present, there are mainly two kinds of power battery case sealing schemes implemented and applied by battery manufacturers, namely high-compression rebound foam materia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J183/07C09J183/05C09J11/04
CPCC08K2003/2224C08K2003/2227C08L2201/02C08L2203/206C08L2205/025C08L2205/035C08L2312/00C09J11/04C09J183/04C08L83/04C08K3/22
Inventor 程宪涛王佐罗斌吴向荣邹鹏
Owner 广东皓明有机硅材料有限公司
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