DuPont’s new glycol-purification solution can extend the lifetime of EV coolants – Charged EVs

Chemical giant DuPont has introduced a groundbreaking solution for e-mobility, which aims to enhance the performance and longevity of electric vehicle (EV) coolants. The new product, called DuPont AmberLite EV2X resin, is designed to reduce the maintenance requirements of glycol coolants in EVs.

Unlike traditional internal combustion engine (ICE) vehicles, EVs face the challenge of managing conductivity within their systems. Over time, the degradation of the glycol coolant and other components in the thermal management system can result in the release of impurities into the cooling loop, leading to increased levels of conductivity. To address this issue, EV manufacturers can install an ion exchange filter made of resins capable of withstanding extreme temperatures and operating conditions.

DuPont claims that its AmberLite EV2X resin offers purification functionality that extends the lifespan of the glycol coolant, coolant loop components, and the ion exchange filter. This innovative resin has undergone rigorous testing and validation under extreme conditions, enduring temperatures of up to 105°C for over 1,000 hours. Compared to standard ion exchange resins, it has exhibited exceptional thermal stability and operating characteristics.

Noel Carr, DuPont’s Marketing Manager in Support of E-mobility Solutions, highlighted the growing consumer demand for increased range, faster charging, larger vehicles, and higher energy-density batteries. These factors have led to higher temperatures within EVs. Many manufacturers have transitioned from air cooling to liquid cooling systems that utilize glycol coolant to manage these elevated temperatures. Glycol coolants are typically more efficient and demonstrate superior performance consistency compared to other thermal management systems. However, operating at high temperatures can lead to the degradation of parts, components, and coolants, potentially causing short circuits and shutdowns.

Carr emphasized that degradation of components and coolant is inevitable due to the high operating temperatures within coolant loops. This degradation negatively impacts the performance of the glycol coolant and increases conductivity throughout the system. With DuPont’s latest solution, suppliers and manufacturers can have greater confidence in the performance and longevity of coolant loops specified for EVs. The AmberLite EV2X resin has demonstrated minimal loss in operational consistency even after hundreds of hours at high temperatures.

Overall, DuPont’s launch of this patented resin marks a significant advancement in coolant purification systems for the EV industry. By extending the lifespan of EV coolants and reducing maintenance requirements, AmberLite EV2X resin is set to play a pivotal role in enhancing the performance and reliability of EVs in the rapidly evolving e-mobility landscape.

Source: DuPont