Chemical giant DuPont has launched a new glycol-purification solution for e-mobility. DuPont AmberLite EV2X resin is designed to extend the lifetime of EV coolants while reducing glycol maintenance requirements.

Unlike ICE vehicles, EVs have to manage conductivity within their systems. The degradation of the glycol coolant and other components within the thermal management system releases impurities into the cooling loop, increasing the levels of conductivity. To prevent this, EV manufacturers can install an ion exchange filter comprised of resins that can withstand the extreme temperatures and operating conditions of the system.

DuPont says its AmberLite EV2X resin’s purification functionality helps to extend the life of the glycol coolant, coolant loop components, and the ion exchange filter. This optimized resin has been tested and validated under extreme conditions, at temperatures up to 105° C for over 1,000 hours, and has demonstrated exceptional thermal stability and operating characteristics compared to standard ion exchange resins.

“Consumer demand for increased range, faster charging, larger vehicles, and more energy-dense batteries is increasing temperatures within EVs,” says Noel Carr, DuPont’s Marketing Manager in Support of E-mobility Solutions. “Many manufacturers are turning from air cooling to liquid cooling systems that use glycol coolant to manage these higher temperatures. Glycol coolants are typically more efficient, and demonstrate more flexible and consistent performance versus other thermal management systems. However, high operating temperatures can lead to degradation of parts, components and coolants, resulting in short circuits and shutdowns.”

“Due to the high operating temperatures within coolant loops it is inevitable that degradation of components and coolant will occur, negatively impacting thes performance of the glycol coolant and increasing conductivity throughout the system,” continued Carr. “With minimal loss in operational consistency after hundreds of hours at high temperatures, DuPont’s new solution can give suppliers and manufacturers greater confidence in the performance and longevity of coolant loops specified for EVs.”

Source: DuPont