Preparation method of organic silicon foaming gasket for power battery box body packaging

A box packaging and power battery technology, applied in applications, household components, household appliances, etc., can solve the problems of poor deformation, poor sealing, poor waterproof and anti-aging performance, and achieve good waterproof performance, small permanent compression deformation, Good weather resistance

Inactive Publication Date: 2020-02-21
嘉兴未来新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the poor deformation and poor waterproof and anti-aging performance of the gasket made of PU material during processing; and the silicone sp

Method used

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  • Preparation method of organic silicon foaming gasket for power battery box body packaging
  • Preparation method of organic silicon foaming gasket for power battery box body packaging
  • Preparation method of organic silicon foaming gasket for power battery box body packaging

Examples

Experimental program
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Effect test

Example Embodiment

[0031] The preparation method of the organic silicon foam gasket for power battery box packaging of the present invention, such as figure 1 As shown, the steps are as follows:

[0032] S1, silicone injection;

[0033] S2, pretreatment;

[0034] S3, parameter setting;

[0035] S4. Dispensing and curing.

Example Embodiment

[0037] The first embodiment, a preparation method of a silicone foam gasket for power battery box encapsulation includes the following steps:

[0038] S1. Put the battery box to be encapsulated on the workbench; transport the prepared organic silica gel A and organic silica gel B to channel A and channel B respectively. The mass ratio of the two components is A: B = 1 :20.

[0039] S2. Set the working temperature of pretreatment to 10°C for 2h.

[0040] S3. Set the glue dispensing parameters, where the walking speed is 0.5m / min, the dispensing temperature is 10°C, and the dispensing volume of the machine head is 0.5g / s.

[0041] S4. Start the glue dispenser and mix the silicone A and silicone B at a speed of 500 rpm, so that the two components of the silicone are fully mixed to complete the mixing process; the mixed glue is extruded from the machine head along The joint of the battery box to be sealed is glued. After the glue is dispensed, it is foamed and cured at room temperature. ...

Example Embodiment

[0042] The second embodiment, a preparation method of a silicone foam gasket used for power battery box packaging includes the following steps:

[0043] S1. Put the battery box to be packaged on the workbench;

[0044] The prepared organic silica gel A and organic silica gel B are transported to the A channel and the B channel respectively, and the mass ratio of the two components is A:B=1:1.

[0045] S2. Set the working temperature of pretreatment to 20°C for 2h.

[0046] S3. Set the dispensing parameters, where the walking speed is 6m / min, the dispensing temperature is 25°C, and the dispensing volume of the machine head is 2g / s.

[0047] S4. Start the glue dispenser and mix the silicone A and silicone B at a speed of 1800 rpm, so that the two components of the silicone are fully mixed to complete the mixing process; the mixed glue is extruded from the machine head along The joint of the battery box to be sealed is glued. After the glue is dispensed, it is foamed and cured at room tem...

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PUM

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Abstract

The invention relates to the field of power battery packaging, in particular to a preparation method of an organic silicon foaming gasket for power battery box body packaging. The preparation method of the organic silicon foaming gasket for power battery box body packaging comprises the steps of conveying two prepared components including organic silica gel A and organic silica gel B to a channelA and a channel B correspondingly, wherein the mass ratio of the two components is that A:B is from 1:20 to 20:1; keeping the temperature of the organic silica gel A and the organic silica gel B at apretreatment working temperature to prepare well before dispensing; setting dispensing parameters, and programming to control the dispensing parameters according to the shape of a battery pack to be packaged; and starting a dispenser for dispensing, and curing the surface skin layer at room temperature. According to the preparation method, the flame retardant grade reaches the V-0 grade; and the skin layer completely covers the surface of a sealing gasket, so that the permanent compression deformability is small, and the sealing gasket is still able to reach the IPX8 waterproof level after being subjected to high-temperature high-humidity environment, high and low temperature impact and high and low temperature salt spray several hours later.

Description

technical field [0001] The invention relates to the field of power battery packaging, in particular to a method for preparing a silicone foam gasket used for power battery case packaging. Background technique [0002] The development of electric vehicles is a huge system engineering, and the production and safe use of power batteries are an important part of it. At present and in the future, lithium-ion power batteries will also be the most mainstream power supply system for electric vehicles. Lithium-ion batteries have the advantages of high energy density and long life, but if used improperly, there are also potential safety hazards. When there is moisture intrusion, short circuit, overload, shell damage, high temperature, etc., lithium-ion batteries may burn or even explode, which also brings challenges to the safe use of lithium-ion batteries. [0003] When used in electric vehicles, lithium-ion batteries also experience a more severe application environment. During t...

Claims

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Application Information

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IPC IPC(8): B29C44/00C08L83/04C08J9/04B29L31/26
CPCB29C44/00B29L2031/265C08J9/0061C08J9/04C08J2383/04C08J2483/04
Inventor 关晓凤
Owner 嘉兴未来新材料科技有限公司
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