A new energy vehicle cooling liquid preparation method and application

By combining hindered ester-modified oil and water-controlling film-forming anti-corrosion additives, the challenges of insulation, moisture sensitivity, material compatibility and safety of coolants for new energy vehicles have been solved, achieving low conductivity, wide temperature range stability and static charge dissipation, thus improving the overall performance of coolants for new energy vehicles.

CN122302841APending Publication Date: 2026-06-30英德市东顺精细化工实业有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
英德市东顺精细化工实业有限公司
Filing Date
2026-04-17
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

New energy vehicle coolants face challenges in terms of insulation performance, moisture sensitivity, material compatibility, safety, and environmental protection requirements, especially in achieving a balance between high conductivity, low-temperature fluidity, interfacial corrosion resistance, and high-temperature stability.

Method used

By combining hindered ester-modified oil, water-controlling film-forming corrosion inhibitor, antioxidant, and polyalphaolefin, a stable fluid system is formed through the molecular configuration of the hindered ester-modified oil and the synergistic effect of the water-controlling film-forming corrosion inhibitor, thereby achieving active moisture control, interface protection, and antioxidant performance.

Benefits of technology

It achieves low electrical conductivity, wide temperature range stability, static charge dissipation, and material compatibility, ensuring the safe and efficient operation of coolant in new energy vehicles.

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Abstract

This invention discloses a method for preparing and applying a coolant for new energy vehicles, belonging to the field of organic polymer technology. The coolant is composed of hindered ester-modified oil, water-controlling and film-forming corrosion-preserving additives, antioxidants, defoamers, and polyα-olefins. The hindered ester-modified oil is a dipentaerythritol hexaester with a specific branched structure; the additives are imidazoline derivatives containing acetal bonds. This invention achieves low conductivity maintenance, efficient charge dissipation, and full-temperature stability through active chemical water control via acetal bonds, interfacial film-forming corrosion protection via imidazoline rings, and synergistic solubilization by hindered esters, making it suitable for immersion cooling systems in power batteries.
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