THERMAL MANAGEMENT ev fluids
Developed specifically for electric vehicles, Castrol ON EV Thermal Fluid will keep your battery cool when you are charging or in use, even in extreme conditions
Thermal management technology for EV batteries
Battery thermal management systems in electric vehicles
Over the last decade, there have been huge advancements in EV battery technologies, allowing the delivery of more power, and reducing range anxiety with greater distances per single charge.
One of the key challenges EV battery systems continue to face is regulating temperature under increasingly extreme operating conditions such as ultra-fast charging and in all types of climate. Currently, most electric cars have either air cooled or indirect liquid cooled battery systems.
Air cooled systems are a popular choice, especially amongst early generation EVs; but while this method is relatively simple and cheap, air cooling is less efficient, and can perform poorly in extreme conditions and climates which can limit the vehicles’ range.
Indirectly cooled battery systems rely on fluids that have a higher level of heat conductivity than air but are still limited when it comes to extreme operations such as sustained ultra-fast charging and hard driving.
Next generation battery electric vehicles are moving to direct cooling in order to enable ultra-fast charging at sustained rates and improved battery system and vehicle performance. This requires a new generation of EV thermal fluids to meet these increasingly demanding requirements
Electric vehicle thermal management fluids
The batteries in electric vehicles work hardest when they are charging and discharging energy – and this is when they can reach undesirable temperatures. As the technology in EVs advances, their batteries will face unprecedented pressure, due to developments in vehicle performance, and ultra-fast charging.
In an effort to combat these challenges, Castrol has developed Castrol ON EV Thermal Fluids that can keep your battery operating at an ideal temperature and continues to work on unique technology for similar products in the future.
Thermal management EV fluid
Available to car manufacturers
The challenge
Next generation battery electric vehicles are moving to direct cooling for battery thermal management in order to enable fast charging and better performance. Efficient direct cooling requires advanced dielectric thermal management fluid technology to maintain battery performance over the lifetime of the vehicle.
Our technology
Castrol ON EV Thermal Fluid with advanced properties have been developed to enable improved battery thermal management in electric vehicles. It has superior properties to enable improved battery thermal management performance:
- Lower viscosity than conventional dielectric fluids such as transformer fluids that enable efficient heat transfer.
- Strong electrical insulation and high flash point to protect against breakdown and ignition.
- Oxidation resistance to maintain performance over the fluid lifetime.
The result
An advanced EV thermal fluid, which can keep the batteries cooler, even in extreme conditions
