FAQ: LION E-Mobility and Castrol Partnership for Direct Battery Cooling Technology
TL;DR
LION E-Mobility's partnership with Castrol creates a competitive advantage through faster charging, improved battery lifespan, and superior thermal management for high-performance EV applications.
The new battery module uses direct cooling with Castrol ON EV Thermal Fluids, employing a modular design for homogeneous temperature distribution and single cell fuses to prevent short circuit propagation.
This technology advances electric mobility by making vehicles safer, more efficient, and longer-lasting, contributing to sustainable transportation and reduced environmental impact worldwide.
Battery cells submerged in lightweight dielectric fluid achieve revolutionary cooling, enabling electric vehicles to charge faster and perform better even under extreme conditions.
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The partnership aims to develop a new cutting-edge battery module for high-performance EV applications by combining LION Smart's direct battery-cooling innovation with Castrol's advanced thermal fluids and battery thermal management expertise.
The technology submerges battery cells in a lightweight dielectric fluid (Castrol ON EV Thermal Fluids) to enable superior heat dissipation, facilitating fast charging and discharging while maintaining homogeneous temperature distribution within the cell.
The module improves battery thermal management, enhances power density, extends battery lifespan, increases operational safety, enables faster charging, and improves PHEV efficiency through higher energy recuperation and greater power at lower system cost.
LION E-Mobility AG (specifically its subsidiary LION Smart Production GmbH) and Castrol are the partners, with Matthias Donner (VP Advanced Mobility at Castrol) and Michael Geppert (Head of Engineering at LION Smart) leading the collaboration.
The technology is designed for passenger cars, trucks, and battery energy storage systems (BESS) worldwide, with a focus on high-performance EV and PHEV applications.
Based on internal testing, the direct cooling system provides superior performance compared to conventional indirect battery cooling systems, offering better heat dissipation, faster charging capabilities, and improved safety features.
The module includes a 'single cell fuse' that reduces potential propagation from internal short circuits, enhancing overall battery safety and preventing thermal runaway.
The partnership was announced on November 6, 2025, and was recently highlighted at the Battery Show Europe where experts from both companies demonstrated the technology in action.
Castrol ON EV Thermal Fluids are being used to enable the direct battery cooling system, providing the dielectric fluid that submerges the battery cells for optimal thermal management.
For PHEVs, the battery module improves efficiency through higher levels of energy recuperation, provides greater power at lower system cost, and increases operational safety due to superior thermal management.
Curated from NewMediaWire
