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Wednesday, September 17, 2025

Bringing immersion cooling to the street


In a milestone for the automotive and vitality industries, TotalEnergies has achieved a world first by integrating an immersion-cooled battery right into a mass market EV. The distinctive efficiency achieved on this challenge was made potential attributable to dialectic fluids particularly developed by TotalEnergies for immersion cooling know-how. This groundbreaking innovation not solely alerts a brand new period for electrical mobility but additionally demonstrates the feasibility of large-scale deployment of high-performance battery cooling techniques in shopper autos.

Pioneering a brand new commonplace in EV battery cooling
Immersion cooling, lengthy seen as a frontier know-how for superior purposes, has now made its manner into the mainstream. After efficiently implementing the system in a Volvo XC90 (a plug-in hybrid car) in 2022, TotalEnergies has taken the know-how additional by making use of it to a completely electrical car constructed for the mass market: a Renault Mégane. The partnership between TotalEnergies and Renault marks a serious step ahead in battery know-how integration. Not like conventional cooling techniques, immersion cooling submerges battery cells immediately in a dielectric fluid, permitting for a lot superior thermal administration. The transition from hybrid to full electrical on this context is not only an evolution, it’s a technological breakthrough.

A primary within the EV market
By integrating this technique right into a production-ready electrical Mégane, TotalEnergies has confirmed that immersion cooling just isn’t restricted to experimental autos. This improvement sends a transparent message: cutting-edge battery know-how could be each sensible and scalable. This marks the primary time a shopper electrical automobile has been geared up with an immersion-cooled battery, representing a key milestone within the transition towards next-generation electrical autos.
The power to include this superior know-how into an current manufacturing mannequin with out altering the automobile’s design or structure is a testomony to the innovation and engineering experience behind the challenge.

The sport-changing impression of immersion cooling
Conventional battery techniques use oblique strategies to handle warmth, typically counting on air or liquid channels surrounding the battery pack. These approaches could be restricted in effectivity and infrequently lead to bulkier battery techniques with added weight and complexity. Immersion cooling, against this, gives direct and uniform warmth dissipation.
By immersing every cell within the dielectric fluid developed by TotalEnergies, warmth is eliminated extra successfully from the battery pack, resulting in vital efficiency advantages:
Quicker charging: charging instances are diminished by almost half, making electrical autos extra handy and sensible for each day use.
Enhanced security: the system mitigates the danger of thermal runaway (a probably harmful chain response) by sustaining optimum temperatures throughout the battery.
Improved efficiency: with higher thermal administration, the battery operates extra effectively, supporting greater energy output and longer lifespans.
Better autonomy: because of a ten% improve in volumetric vitality density, the system delivers extra vary with out growing the dimensions or weight of the battery.
Weight and price financial savings: by eliminating complicated cooling infrastructure, the general weight and price of the battery system are diminished.
These advantages make immersion cooling a gorgeous resolution for automobile producers seeking to push the boundaries of EV efficiency with out compromising security or scalability.

Designed for the calls for of the longer term
Electrical mobility is getting into a brand new part. The following technology of EVs should assist ultra-fast charging, provide prolonged vary, and meet the very best security requirements, all whereas being cost-effective. Immersion cooling gives a direct and efficient response to this problem.
By delivering an answer that improves key efficiency metrics of EV batteries, TotalEnergies positions itself on the forefront of next-generation electrical mobility. As well as, the adaptability of the system and its seamless integration into present battery techniques makes it a sensible resolution for large-scale use.

A trusted associate for automobile producers
The success of this challenge displays the belief that main automobile producers like Renault have positioned in TotalEnergies. It’s not solely in regards to the innovation itself, but additionally the maturity of the answer. The dielectric fluids developed by TotalEnergies for immersion cooling are already out there, examined, and optimized for the automotive trade. These proprietary fluids provide long-term stability, electrical insulation, and excessive thermal conductivity which are all important for sustaining efficiency over the lifetime of the car.
In a fast-evolving market formed by shopper expectations and environmental requirements, a dependable and scalable resolution like immersion cooling gives a key aggressive benefit.

Powering the way forward for mobility
TotalEnergies’ breakthrough in immersion cooling know-how exemplifies its dedication to innovation and sustainability in mobility. By redefining the way in which batteries are managed and built-in, the corporate is contributing to a future the place electrical autos are usually not solely extra accessible but additionally extra environment friendly, safer, and higher suited to the evolving wants of shoppers and trade alike.
Because the transition to a lower-carbon future continues, applied sciences like immersion cooling are set to play an more and more necessary function. By its latest developments, TotalEnergies demonstrates its dedication to this path and performs a major function in driving this evolution.

lubricants.totalenergies.com

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