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New energy automobile power battery cooling liquid and preparation method thereof

A new energy vehicle, power battery technology, applied in secondary batteries, chemical instruments and methods, circuits, etc., can solve the problem of high electrical conductivity, and achieve the effect of low electrical conductivity and excellent anti-corrosion effect of metals

Active Publication Date: 2020-06-02
北京蓝星清洗有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] The invention designs a new energy vehicle power battery coolant and its preparation method, which solves the problem of high electrical conductivity of the existing power battery

Method used

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  • New energy automobile power battery cooling liquid and preparation method thereof
  • New energy automobile power battery cooling liquid and preparation method thereof
  • New energy automobile power battery cooling liquid and preparation method thereof

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Embodiment Construction

[0029] Below in conjunction with accompanying drawing, the present invention will be further described:

[0030] The present invention proposes a new energy vehicle power battery coolant, which is mixed and stirred according to the following component ratios:

[0031] Components: Percentage by weight:

[0032] Ethylene glycol 25%-95%;

[0033] Azole compounds 0.5%-3%;

[0034] Composite corrosion inhibitor 0.2%-2%;

[0035] Deionized water balance;

[0036] In the above scheme, the conductivity of the cooling liquid does not exceed 20 μs / cm; the new energy vehicle power battery cooling liquid provided by the present invention is specially used in the power battery cooling liquid of new energy vehicles. The power battery cooling liquid does not contain inorganic salts, and the selected low The special composite corrosion inhibitor of conductivity works synergistically with azole compounds, so that the power battery coolant has excellent antifreeze performance and metal prot...

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Abstract

The invention relates to a new energy automobile power battery cooling liquid and a preparation method thereof. The cooling liquid is prepared by mixing and stirring the following components: 25-95% of ethylene glycol, 0.5-3% of an azole compound, 0.2-2% of a composite corrosion inhibitor, and the balance of deionized water. Compared with the cooling liquid in the prior art, the cooling liquid ofthe invention has the advantages that the cooling liquid is free of inorganic salt and is compounded with an organic special-effect corrosion inhibitor, so that the power battery cooling liquid disclosed by the invention has an excellent metal anti-corrosion effect and long-acting extremely-low conductivity, and the requirements of a new energy automobile power battery cooling system on cooling, corrosion prevention, insulation, long acting and the like of the cooling liquid are met.

Description

technical field [0001] The invention belongs to the technical field of automobile power battery cooling liquid, and in particular relates to a new energy automobile power battery cooling liquid and a preparation method thereof. Background technique [0002] New energy vehicles mainly rely on the drive motor to convert the electric energy stored in the power battery into the kinetic energy of the wheels to drive the vehicle. The cooling performance of the power battery directly affects the efficiency of the battery, and also affects the battery life and safety. The cooling of power batteries is currently divided into two categories: air cooling and liquid cooling: air cooling is divided into natural convection, natural wind forced convection and air conditioning cold air forced convection; liquid cooling is divided into coolant cooling and refrigerant cooling. [0003] Most of the existing cooling liquids use inorganic salt formula, or organic acid / inorganic salt mixed formul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/20H01M10/613H01M10/625H01M10/6567
CPCC09K5/20H01M10/613H01M10/625H01M10/6567Y02E60/10
Inventor 张静庞力衡王双田单素灵侯悖高克卿王贻全刘立军
Owner 北京蓝星清洗有限公司
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