DuPont Launches eCool Technology: Lightweight Automotive Cooling Hoses for EV Applications

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Update time : 2021-12-09

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Introduction
As the global demand for electric vehicles (EVs) continues to surge, innovative cooling solutions are essential to optimize battery performance, safety, and driving range. Addressing this urgent market need, DuPont Mobility and Materials recently unveiled its latest advancement — eCool technology — designed for high-voltage EV battery cooling systems.

What is eCool Technology?
DuPont's eCool technology focuses on multilayer extruded cooling hoses that provide a lightweight, sustainable, and cost-effective alternative to traditional EPDM rubber hoses and thermoplastic components.

Key material innovation includes the co-extrusion of Zytel LCPA (Long Chain Polyamides) with thermoplastic olefin elastomers, ensuring exceptional resistance to a wide range of EV coolants, while significantly reducing global warming potential (GWP).

An electric vehicle typically requires three times the cooling line length compared to internal combustion engines. Hence, reducing the hose weight and improving durability has become critical for enhancing vehicle energy efficiency and sustainability.

Key Advantages of DuPont eCool Solution

1.Lightweight Design:Reduces vehicle weight compared to thick EPDM rubber tubes reinforced with textiles.
2.Enhanced Sustainability:Achieves over 50% reduction in GWP compared to traditional PA12 single-layer pipes.
3.Superior Coolant and Hydrolysis Resistance:Maintains structural integrity and performance under aggressive coolant conditions.
4.Customization and Flexibility:Thermoplastic olefin elastomer layers allow tailored flexibility and design freedom.
5.Cost Competitiveness:Offers a high-performance yet cost-efficient solution for mass-market EV cooling applications.
6.Ease of Processing:Supports extrusion and thermoforming processes, simplifying production workflows.
 7.Production and Testing Excellence:DuPont's Automotive Electrification Centers of Excellence — including its Geneva facility — provide advanced support such as:CAE/FEA simulations,Extrusion and welding testing,Burst pressure analysis,Chemical aging and cold shock resistance evaluation.
This ensures eCool components are manufactured and validated under near-commercial conditions, delivering reliable and scalable solutions for global EV markets.

Conclusion
The launch of DuPont’s eCool technology marks a significant milestone in the evolution of EV cooling systems. By combining lightweight design, superior coolant resistance, and sustainability advantages, eCool hoses set a new standard for high-voltage battery thermal management. As the global automotive industry shifts towards electrification, innovations like eCool will be critical in shaping the future of vehicle performance, safety, and environmental impact.

At GOCPB, we are committed to tracking and delivering the latest automotive technological advancements to our global partners.

Source: Globalpu News

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