EVOGEN™ Battery Thermal Management Fluids

Unlock the Potential of Immersion Cooling for Electric Vehicles

Lubrizol’s EVOGEN TM1000 Series EV battery thermal management fluids are formulated and tested to provide superior performance features in EV immersion cooling applications. The result is faster charging, better battery performance and improved safety.

EVOGEN™ TM1000 Series Features and Benefits

  • Balanced static dissipation
  • Strong corrosion inhibition
  • Strong antioxidancy
  • Excellent dispersancy
  • Broad material compatibility

As a trusted partner, Lubrizol can work with you to develop a battery thermal management solution that can be tailored to meet your specific requirements. Contact us today to learn more.

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Product Specifications

Kinematic Viscosity (cSt) @ 40°C 1.3 1.9 4.6
Kinematic Viscosity (cSt) @ 100°C 0.6 0.9 1.6
Flash Point (°C) D92  78 100 160
Density @ 25°C (g/mL) 0.75 0.78 0.80
Heat Capacity @ 25°C (J/K) 2.11 2.12 2.11
Thermal Conductivity @ 25°C (mW) 0.116 0.121 0.143
Dielectric Strength (kV) 33 60.1 80
Boiling Point (°C) (range) 173 - 229 209 - 300 295 - 403
Electrical Conductivity (S/cm, 23°C) 1.3E-12 1.6E-11 8.13E-12
D97 Pourpoint (°C) (D97) -48 -39 -39

Why Direct Immersion Cooling for EVs? 

Direct Immersion Effectively Suppresses Battery Thermal Runaway

In the heart of every modern battery electric vehicle (BEV) lies a meticulously arranged network of small battery cells.  

These “battery packs” are the key power sources for plug-in hybrid or full electric vehicles. Unfortunately, they’re also prone to excessive heat issues, such as battery thermal runaway, that can compromise battery lifespan.

What is Battery Thermal Runaway?

Battery thermal runaway refers to a critical safety condition that can occur in EV batteries, where a self-perpetuating, uncontrollable increase in temperature and energy release leads to catastrophic failure, including fires or explosions.

Immersion cooling effectively suppresses and stops battery thermal runaway by providing direct contact between the coolant and the battery cells. This can prevent thermal runaway from spreading from one cell to the next.

Direct Immersion Enables Extreme Fast Charging (XFC)

Direct immersion can also enable faster charging. Why does that matter?

Battery electric vehicles are entering the market from an increasing number of OEMs. And as new competitors enter the market, consumers will consider the greater range of options available, with charging speed near the top of the list.

How can OEMs differentiate on BEV charging speeds? By considering direct immersion of the battery as an enabler for XFC.

Direct immersion effectively absorbs excess heat generated during faster charging. This ensures that the battery cells remain within their optimal operating range, promoting efficient charging and preserving the overall health of the batteries.

How Fast is Extreme Fast Charging?

See for yourself in this short video that compares the difference in charging times between indirect cooling and direct immersion cooling.

Battery Immersion Cooling

WATCH: Going Beyond Base Oil to Deliver Optimal Thermal Performance and Safety in Immersion-Cooled EV Batteries

Learn more about how choosing the right immersion fluid can enhance safety and performance in EV vehicles.  

Webinar: 25 min +Q&A

Learn more about Battery Thermal Management for EVs

Contact us or read more about direct immersion cooling for electric vehicles on Lubrizol 360.