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Cooling liquid for battery constant temperature control and preparation method thereof

A technology of constant temperature control and cooling liquid, which is applied in the direction of secondary batteries, circuits, electrical components, etc., to achieve the effects of high thermal conductivity, optimized heat capacity, and high flame retardant grade

Active Publication Date: 2017-05-31
JIANGSU LOPALTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no special coolant for electric vehicles in China, and it is in a blank state in terms of technology and products.

Method used

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  • Cooling liquid for battery constant temperature control and preparation method thereof
  • Cooling liquid for battery constant temperature control and preparation method thereof
  • Cooling liquid for battery constant temperature control and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Raw materials and their proportioning ratio are shown in Table 1.

[0021] The raw material of table 1 embodiment 1 and its proportioning

[0022] raw material paraffin NP100 AEO3 Carbomer 1342 water Ethylene glycol Proportion 40％ 4％ 4％ 4％ 16％ 32％

[0023] Preparation method: Put the phase change material paraffin into a heated dispersion kettle, raise the temperature to 70°C until the paraffin is completely melted, start stirring to 2000rpm, add emulsifier NP100, AEO3, stir for 20min, slowly add Carbomer 1342 aqueous solution, Stir for 5 minutes, add water and ethylene glycol solvent, and accelerate to 4000rpm, fully homogeneously emulsify, and form a highly stable emulsion.

Embodiment 2

[0025] Raw materials and their proportioning ratio are shown in Table 2.

[0026] The raw material of table 2 embodiment 2 and proportioning thereof

[0027] raw material amino polyether NP100 SPAN80 Carbomer 934 water Propylene Glycol Proportion 40％ 3％ 4％ 3％ 25％ 25％

[0028] Preparation method: Put the phase change material amino polyether into the heated dispersion kettle, raise the temperature to 80°C until the phase change material melts, start stirring to 2000rpm, add emulsifier NP100, SPAN80, stir for 20min, slowly add carbo M934 aqueous solution, stirred for 5 minutes, added water and propylene glycol solvent, and accelerated to 4000rpm, fully homogeneous emulsified, and formed a highly stable emulsion.

Embodiment 3

[0030] Raw materials and their proportioning ratio are shown in Table 3.

[0031] The raw material of table 3 embodiment 3 and proportioning thereof

[0032] project Block polyether NP100 OP100 AEO3 Carbomer 1342 water Ethylene glycol Proportion 45％ 3％ 3％ 3％ 6％ 20％ 20％

[0033] Preparation method: Put the phase change material block polyether into the heated dispersion kettle, raise the temperature to 80°C until the phase change material is melted, start stirring to 2000rpm, add emulsifier NP100, OP100, AEO3, stir for 60min, slowly Add carbomer 1342 aqueous solution, stir for 20 minutes, add water and ethylene glycol solvent, and accelerate to 4000rpm, fully homogeneously emulsify, and form a highly stable emulsion.

[0034] The cooling liquid prepared in Examples 1-3 was tested for performance, and the obtained results are shown in Table 4.

[0035] The performance comparison table of the cooling liquid prepared by the embodiment 1-3 ...

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Abstract

The invention discloses cooling liquid for battery constant temperature control and a preparation method thereof. The cooling liquid is prepared from 16 to 50 percent of phase-change materials, 3 to 15 percent of emulsifying agents, 1 to 10 percent of additive assistants and 30 to 60 percent of solvents. The preparation method comprises the following steps that the temperature of the phase-change materials is raised to 70 to 80 DEG C; stirring is started to 2000 to 6000rpm; the emulsifying agents are added and are uniformly stirred; then, the additive assistants are added and stirred; finally, the solvents are added; accelerated stirring is performed to reach 4000 to 6000rpm; sufficient homogeneous emulsification is performed; the cooling liquid is obtained. Compared with the traditional cooling liquid, the cooling liquid has the advantages of high heat capacity, low electrical conductivity, high flame retardant stage, high heat conductivity, high flash point and low volatility; the storage of heat energy of a battery module is realized through the phase-change materials; the technical requirement of constant temperature control is met; meanwhile, during the preparation, a high-speed dispersion emulsification technology is combined with a phase change technology; the heat capacity, the flame retardant performance and the anti-electrolytic chemical reaction of the cooling liquid are optimized.

Description

technical field [0001] The invention belongs to the field of cooling liquid, and in particular relates to a cooling liquid used for battery constant temperature control and a preparation method thereof. Background technique [0002] Today, the demand and scope of use of pure electric vehicles are expanding day by day. The temperature difference between the north and the south of the earth and battery energy consumption will become important factors restricting the popularization of pure electric vehicles. From the perspective of design effectiveness and practicability, there are two main ways to solve the above problems: 1. It is to adopt new materials, such as battery materials, battery heat-resistant materials and heat-conducting materials; the second is to optimize the structure, layout structure and control strategy of components to improve the EV thermal management system. Reasonable component structure and layout are conducive to heat transfer and thermal protection , ...

Claims

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Application Information

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IPC IPC(8): H01M10/613H01M10/617H01M10/625H01M10/6567
CPCH01M10/613H01M10/617H01M10/625H01M10/6567Y02E60/10
Inventor 严军表
Owner JIANGSU LOPALTECH
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