Castrol has partnered with Lion Smart to facilitate the development of a battery module for high-performance EV applications, combining Lion Smart’s direct battery‑cooling solution with Castrol’s advanced thermal fluids and battery thermal management expertise.
The partnership aims to improve battery thermal management for passenger cars, trucks and battery energy storage systems (BESS) worldwide, through direct battery cooling, a cutting‑edge approach that facilitates fast charging and discharging of battery cells that are submerged in a lightweight dielectric fluid. Castrol ON EV Thermal Fluids will be used to enable superior heat dissipation, enhance power density and improve battery lifespan and safety.
This battery module has been engineered to deliver advanced cooling. It features a modular design for homogeneous temperature distribution and minimal temperature gradient within the cell. The structure is configured to help maximize the active cooled contact surface, while a single cell fuse reduces potential propagation from an internal short circuit.
With the innovations in this battery module, Lion Smart says it has advanced battery temperature management and that the battery module can improve the efficiency of plug‑in hybrids (PHEVs) due to higher levels of energy recuperation, greater power at a lower system cost and increased operational safety.
Matthias Donner, VP of advanced mobility and industrial products at Castrol, commented, “Direct battery cooling is a transformative technology for EV performance and safety, and this collaboration is a significant step toward real-world deployment.
“Partnering with Lion Smart allows us to demonstrate the full potential of Castrol ON EV Thermal Fluids in advanced battery systems. Together, we’re shaping a future where electric vehicles can charge faster and last longer while operating more efficiently, even under extreme conditions.”
Michael Geppert, head of engineering at Lion Smart, added, “Our battery system architecture is designed to push the boundaries of electrical performance in high-power applications, and Castrol’s direct battery cooling expertise is a perfect match. This partnership reinforces our commitment to delivering next-generation solutions that meet the growing demands of the electric mobility sector.”
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