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Upper cover thermal runaway protection mica structural member for new energy automobile and preparation method of upper cover thermal runaway protection mica structural member

A technology for new energy vehicles and structural parts, applied in vehicle parts, electrical components, electrochemical generators, etc., can solve the problems of poor thermal runaway protection performance and durability, achieve excellent and long-lasting thermal runaway protection performance, improve durability and Safety and the effect of reducing maintenance costs

Active Publication Date: 2022-04-12
浙江荣泰电工器材股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of relatively poor durability of the overall thermal runaway protection performance of new energy vehicles, the application provides a thermal runaway protective mica structure for the upper cover of new energy vehicles and a preparation method thereof

Method used

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  • Upper cover thermal runaway protection mica structural member for new energy automobile and preparation method of upper cover thermal runaway protection mica structural member
  • Upper cover thermal runaway protection mica structural member for new energy automobile and preparation method of upper cover thermal runaway protection mica structural member
  • Upper cover thermal runaway protection mica structural member for new energy automobile and preparation method of upper cover thermal runaway protection mica structural member

Examples

Experimental program
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Effect test

preparation example 1

[0059] Preparation of synthetic fluorophlogopite aggregates: Put 40-mesh synthetic fluorphlogopite produced by Shijiazhuang Fengming Mineral Products Co., Ltd. in a ball mill, mill at 200 rpm / min for 15 minutes, and use a 300-mesh sieve to sieve to obtain <300 mesh Fluorphlogopite, the retentate of the 300 mesh screen is sub-sieved with a 200 mesh screen to obtain 200-300 order fluorphlogopite, and the retentate of the 200 mesh screen is sub-sieved with a 150 mesh screen to obtain 150- 200 mesh fluorphlogopite, and then the retentate of 150 mesh sieve is sub-sieved with 100 mesh sieve to obtain 100-150 mesh fluorphlogopite. Weigh according to the mass ratio of <300 mesh fluorphlogopite, 200-300 mesh fluorphlogopite, 150-200 mesh fluorphlogopite, 100-150 mesh fluorphlogopite 3:5:20:2, mix to obtain synthetic fluorine gold Mica aggregates.

preparation example 2

[0061] The difference between Preparation Example 2 and Preparation Example 1 is that the mass ratio of <300 mesh fluorphlogopite, 200-300 mesh fluorphlogopite, 150-200 mesh fluorphlogopite, and 100-150 mesh fluorphlogopite is 8:10: 20:5 weighed and mixed to obtain synthetic fluorphlogopite aggregate.

preparation example 3

[0063] The surface-modified fluorophlogopite is prepared from the synthetic fluorophlogopite aggregate in Preparation Example 1 through an electroless aluminum plating process.

[0064] The preparation method of surface modified fluorine phlogopite comprises the following steps:

[0065] Step 1, the preparation of electroless aluminum plating solution, in dry argon vacuum glove box, weigh the anhydrous AlCl of 266.68g 3 (99.9%) and 146.62g of 1-methyl-3-propyl imidazole chloride (EMIC), the temperature was heated to 50°C, and the temperature was maintained between 49.5-50.5°C, and AlCl was gradually added in small amounts while stirring 3 Make it completely melted, then impregnate it with a sufficient amount of 99.99% aluminum wire, and carry out 7 days of replacement and refining at 25°C to obtain a solution for electroless aluminum plating. Take 100mL of solution for electroless aluminum plating in a general-purpose beaker, and control the temperature at 35 ℃, and finally a...

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Abstract

The invention relates to the technical field of new energy thermal runaway protection materials, in particular to an upper cover thermal runaway protection mica structural part for a new energy automobile and a preparation method of the upper cover thermal runaway protection mica structural part. An upper cover thermal runaway protection mica structural part for a new energy automobile comprises a porous mica ceramic part, and a low-heat-conduction tear-resistant mica sheet is compounded on the surface, facing the inner wall of an automobile front upper cover, of the porous mica ceramic part. The thickness ratio of the porous mica ceramic piece to the low-heat-conduction tear-resistant mica sheet is (2-4): 1; the porous mica ceramic part is mainly prepared from the following raw materials in parts by weight: 60-70 parts of surface modified fluorophlogopite and 30-40 parts of a binder, the surface modified fluorophlogopite comprises a fluorophlogopite body and metal particles, and the metal particles are fixedly connected to the surface of the fluorophlogopite body through a coating process. The interface bonding force between the thermal runaway protective agent and foam glue is high, the degumming phenomenon is not prone to occurring, and therefore the overall thermal runaway protective performance durability, safety and stability of the new energy automobile are improved.

Description

technical field [0001] The present application relates to the technical field of new energy thermal runaway protection materials, in particular to a thermal runaway protection mica structure for a top cover of a new energy vehicle and a preparation method thereof. Background technique [0002] With the rising share of new energy vehicles in the automotive market, new energy vehicles have become an upstart in the current automotive market. The energy cost of new energy vehicles is low, and they are loved by the public. However, there are not a few traffic accidents of new energy vehicles reported every year, which makes the public scruples about the safety performance of new energy vehicles. consumption of new energy vehicles. [0003] New materials for insulation and heat insulation in new energy vehicles are one of the key factors to ensure the safety performance of the vehicle. The development of new insulation materials provides an effective solution to the safety perfo...

Claims

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Application Information

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IPC IPC(8): B60R13/08H01M10/625H01M10/658
CPCY02E60/10
Inventor 郑敏敏赵书言饶蕾王维刚
Owner 浙江荣泰电工器材股份有限公司
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