Insulating and heat conduction material for power battery of new-energy vehicle and preparation method of insulating and heat conduction material

A new energy vehicle and power battery technology, applied in the field of composite materials, can solve the problems of poor material performance stability, unenvironmental use, safety hazards, etc., to achieve excellent mechanical properties, better thermal conductivity, and avoid oxidation effects.

Inactive Publication Date: 2019-06-21
杨记周
View PDF2 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The insulation and heat conduction materials for new energy vehicle power batteries prepared by this preparation method overcome the more or less poor insulation of traditional new energy vehicle power battery insulation and heat conduction materials, which will cause safety hazards and are expensive

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0030] Example 1

[0031] A method for preparing an insulating and thermally conductive material for a power battery of a new energy vehicle includes the following preparation methods:

[0032] Step S1 Preparation of intermediate product: under nitrogen atmosphere, add 100g of tetrahydrophthalimide and 113g of diethylstilbestrol into a three-necked flask equipped with a reflux condenser and an electric stirrer, and then add dimethylene 1000g of sulfone, reflux and stir for reaction at 120°C for 10 hours, and then rotate to remove the solvent to obtain an intermediate product;

[0033] Step S2: Phthalimide-based fluorine-containing fluorene polycondensate: 150g of 2,7-dibromo-9,9-difluorofluorene, 100g of intermediate product, and 40g of cesium carbonate are added to a three-necked bottle connected to a water separator , Then add 1000g of dimethyl sulfoxide and 400g of toluene, heat the reaction system to 110°C, stir and react for 3 hours under the protection of nitrogen, remove the ...

Example Embodiment

[0038] Example 2

[0039] A method for preparing an insulating and thermally conductive material for a power battery of a new energy vehicle includes the following preparation methods:

[0040] Step S1 Preparation of intermediate product: under helium atmosphere, add 100 g of tetrahydrophthalimide and 113 g of diethylstilbestrol into a three-necked flask equipped with a reflux condenser and an electric stirrer, and then add N, 1100 g of N-dimethylformamide, reflux and react with stirring at 122°C for 10.5 hours, and then the solvent was removed by rotary evaporation to obtain an intermediate product;

[0041] Step S2: Phthalimide-based fluorine-containing fluorene polycondensate: 150g of 2,7-dibromo-9,9-difluorofluorene, 100g of intermediate product, and 43g of sodium hydride are added to a three-necked flask connected to a water separator , Add 1100g of dimethyl sulfoxide and 450g of toluene, heat the reaction system to 113°C, stir for 3.5 hours under the protection of nitrogen, re...

Example Embodiment

[0046] Example 3

[0047] A method for preparing an insulating and thermally conductive material for a power battery of a new energy vehicle includes the following preparation methods:

[0048] Step S1 Preparation of intermediate product: under a neon atmosphere, add 100 g of tetrahydrophthalimide and 113 g of diethylstilbestrol to a three-necked flask equipped with a reflux condenser and an electric stirrer, and then add N- to the flask. 1,300 g of methylpyrrolidone, reflux and react with stirring at 125°C for 11 hours, and then rotate to remove the solvent to obtain an intermediate product;

[0049] Step S2: phthalimide-based fluorine-containing fluorene polycondensate: 150g of 2,7-dibromo-9,9-difluorofluorene, 100g of intermediate product, and 50g of potassium tert-butylate are added to the water separator In a three-neck flask, add 1300g of dimethyl sulfoxide and 500g of toluene, heat the reaction system to 115°C, stir and react for 4 hours under nitrogen protection, and remove ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a preparation method of an insulating and heat conduction material for a power battery of a new-energy vehicle. The method comprises steps as follows: (1) preparation of an intermediate product, (2) preparation of phthalimide-based fluorine-containing fluorene polycondensate, (3) preparation of a polymer surface modified fluoridized graphene/nano boron fiber composite, and (4) material forming. The invention also discloses the insulating and heat conduction material for the power battery of the new-energy vehicle, which is prepared with the preparation method. The insulating and heat conduction material for the power battery of the new-energy vehicle has the advantages of excellent comprehensive performance and better rigidity, flame retardance, high-temperature resistance, insulativity, weather fastness and heat conductivity.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to an insulating and heat-conducting material for a power battery of a new energy vehicle and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of our country's economy and the continuous improvement of people's living standards, people's understanding of the environmental pollution caused by automobile exhaust has been further deepened, and it is very urgent to improve the environment on which they live. It is in this form Under the circumstances, new energy vehicles came into being. New energy vehicles are a type of vehicles driven by new energy sources other than traditional energy sources, and electric vehicles are typical representatives of this type of vehicles. It is powered by electricity and is known for its zero emissions, low noise and high efficiency. [0003] Due to the nature and structure of electric ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C08L65/00C08K9/04C08K3/04C08K7/06
Inventor 杨记周
Owner 杨记周
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap