Preparation method of high-stability thermally-induced flexible phase change material and cushioning battery module

A high-stability, phase-change material technology, used in heat-exchange materials, battery pack components, secondary batteries, etc., can solve the problems of poor uniformity, easy leakage, and poor thermal conductivity of phase-change materials. Effects of improved uniformity, improved thermal conductivity, lightweight and compactness

Pending Publication Date: 2021-07-20
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, this application provides a preparation method of a high-stability thermally flexible phase change material and a cushioning bat

Method used

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  • Preparation method of high-stability thermally-induced flexible phase change material and cushioning battery module
  • Preparation method of high-stability thermally-induced flexible phase change material and cushioning battery module
  • Preparation method of high-stability thermally-induced flexible phase change material and cushioning battery module

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0036] Example 1

[0037] (1) Melting paraffin at 150 ° C, adding styrene-butadiene-styrene block copolymers to be stirred with 500RAD / min, resulting in a translucent colloidal solution;

[0038] (2) Trium-ethylene propylene rubber (ethylene, propylene and non-conjugated diene terpolymer, molecular weight distribution: 2 ~ 5) is stirred with 1000rad / min, wherein paraffin, Styrene-butadiene-styrene block copolymers and the mass ratio of Trimethylene Ethylene ethylene rubber are 8: 1: 0.5 to obtain a viscous colloidal solution;

[0039] (3) Adding expanded graphum in a viscous solution is stirred at 1000 rad / min, wherein the addition amount of the thermally conductive reinforcing agent is 1% by weight, 3% by weight, and 5 wt% of total mass, and poured into the mold. The product E-SPEG1, E-SPEG3 and E-SPEG5 were obtained separately.

Example Embodiment

[0051] Example 2

[0052] Please refer to Figure 3 ~ 4 The present application example provides a cushioning battery 5 module, including a box body 1 and a battery holder; the battery holder is placed in the casing 1, and is used to load the battery 5; the battery holder is made of the product manufactured by Example 1 .

[0053] In the present application, the phase change material has good flexibility, still having a high quality retention ratio in high temperature, and can realize the lightweight and compactness of the battery 5 module, and improve the thermal conductivity of the phase change material. , More effectively adapt to the battery 5 thermal management, avoid leakage and vibration, and the battery 5 is detached from the heat contact. It should be noted that the casing 1 is made of an insulating material.

[0054] Further, the battery holder includes a loading cartridge 2 and a connecting member 4 that is spaced in series by a carrier 2; the loader 2 is provided with a...

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Abstract

The invention belongs to the technical field of phase change materials. The invention provides a preparation method of a high-stability thermally-induced flexible phase change material and a cushioning battery module. The high-stability thermally-induced flexible phase-change material is prepared by melting and mixing a phase-change base material, a styrene-butadiene-styrene block copolymer, ethylene propylene diene monomer and a heat-conducting enhancer under stirring. By adding the ethylene propylene diene monomer (ethylene, propylene and non-conjugated diene copolymer), the crosslinking of the styrene-butadiene-styrene block copolymer can be effectively increased, the adsorption of the styrene-butadiene-styrene block copolymer to the phase-change base material is increased, the phenomenon of phase separation of the styrene-butadiene-styrene block copolymer and the phase-change base material is effectively avoided, and the uniformity of the phase-change material is improved, so that the phase-change material still has high quality retention rate after being used for a long time at high temperature, the light weight and compactness of the battery module can be realized, the heat conductivity coefficient of the phase-change material is improved, and the problem that the phase-change material is separated from a battery during leakage and vibration is effectively avoided.

Description

technical field [0001] The application belongs to the technical field of phase change materials, and in particular relates to a preparation method of a highly stable thermally flexible phase change material and a cushioning battery module. Background technique [0002] In recent years, due to the energy shortage crisis, environmental pollution and greenhouse effect caused by the continuous consumption of fossil energy, the development and utilization of sustainable green energy has become an important focus of sustainable development. Electric vehicles using green and clean energy can effectively reduce the consumption of fossil energy and greenhouse gas emissions of traditional fuel vehicles. Among them, the power battery is the energy supply part of the electric vehicle, its performance and safety performance directly affect the performance and safety of the electric vehicle, and even the safety of the driver. In actual use, the power battery system often needs to experie...

Claims

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Application Information

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IPC IPC(8): C09K5/06H01M50/242H01M50/249H01M50/213H01M50/195H01M50/258H01M10/613H01M10/625H01M10/6561H01M10/6567H01M10/659H01M10/653H01M10/643
CPCC09K5/063H01M10/613H01M10/625H01M10/643H01M10/653H01M10/6561H01M10/6567H01M10/659Y02E60/10
Inventor 李新喜黄启秋张国庆
Owner GUANGDONG UNIV OF TECH
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