Innovative multilayer construction offers significantly improved design freedom and lower Global Warming Potential for xEV cooling lines.
DuPont Mobility & Materials today introduced new eCool technology for extrusion of multilayer cooling lines positioned inside and outside the high voltage battery pack. This solution addresses the challenge posed by increased cooling line requirements in xEVs, a direct result of the vital need to manage heat and energy for maximum battery operation, safety, and range.
“Automotive cooling lines are critical to maintaining the performance of EV batteries. And as a large application, they are an important target for sustainability improvement. With our eCool solution, we offer the industry a high-performance, flexible, and more sustainable solution that is also cost competitive,” explained Laurent Lefebvre, global marketing director, automotive, DuPont Mobility & Materials.
Electric vehicles can require up to three times the length of cooling lines found in ICE systems. For these large components, engineers are challenged with finding a more sustainable solution that will still hold up to cooling fluids. DuPont eCool technology, based on the company’s Zytel LCPA Long Chain Polyamide grades co-extruded with thermoplastic olefin elastomer, presents an attractive alternative to current, heavier options such as thick EPDM rubber hoses and other thermoplastic assemblies.
The eCool solution not only removes weight but also better resists a wide range of EV cooling fluids while remaining cost competitive. In addition, DuPont has assessed that its eCool solution can significantly reduce Global Warming Potential (GWP) of these cooling tubesby over half compared to monolayer PA12 tubes.
This new eCool technology can be easily processed via extrusion and thermoforming, and offers:
Production-level support for eCool technology is available at DuPont’s Center of Excellence in Geneva, as well as at other application development centers throughout the globe. This includes advanced CAE/FEA simulation, extrusion trials, support for post-processing, welding and testing for burst pressure, mechanical evaluation of properties before and after air and chemical aging, salt stress cracking, cold impact resistance, and bend testing. With its industrial-scale processing equipment, DuPont offers customers the ability to manufacture cooling lines under near-commercial conditions, then do the testing to dial in the process and postprocessing required.
New eCool technology is the latest in a growing line-up of advances and solutions for vehicle electrification from DuPont, including:
DuPont Mobility & Materials will showcase these and other cutting-edge solutions and technology innovation in Hall 6, Stand C43 at the upcoming K 2022, the world’s leading trade fair for the plastics and rubber industry. This international event, held once every three years, takes place from 19 to 26 October in Düsseldorf, Germany.
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