E-MERSIV has strong ambitions, driven by versatile teams that are aware of our clients’ needs. Any barriers we may encounter are overcome by our agility and know-how.
Arnaud DESRENTES, CEO of E-MERSIV
High performance battery packs
Values are representative of submerged battery packs that have already been developed and validated by E-MERSIV for our customers. Key figure for your application may differ according to cell chemistry or form factor.
unlocking the barriers to a rapid and massive adoption of EVs
E-MERSIV develops and manufactures world class patented immersion cooling li-ion HV battery packs with the best cost-benefit ratio.
Our customers choose our products because of their performance, longevity and increased safety. We have tested our battery packs for over 150,000 hours to prove the superiority of this technology.
Extreme Discharge Power
More than 50C
Proven 50C in discharge for 10s peak.
Our proprietary algorithms and unique direct cooling technology compared to traditional cold plates enable a cooled surface 14x more important guaranteeing a 4 times better temperature gradient in our packs.
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Ultra-Fast Charging
< 10 minutes
Example of current E-MERSIV’s design: a 50kWh battery pack charged in less than 10 minutes for a 20-80% SoC, without impacting the service life of the battery (compared to cold plate battery packs).
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Better Safety
100% Fully immune to thermal runaway propagation
Numerous in-house tests prove that our patented technology prevents thermal runaway propagation even with non-active cooling. We have indeed proven that when the triggered cell reaches 400°C, the adjacent cell temperature only reaches 100°C.
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E-mersiv unique selling points
The E-MERSIV technology can be adapted to any cell format and electrochemistry. It is up to the customer to specify their requirements or rely on E-MERSIV’s vast experience to offer the best configuration based on the product use.
The E-MERSIV technology can be adapted to any cell format and electrochemistry. It is up to the customer to specify their requirements or rely on E-MERSIV’s vast experience to offer the best configuration based on the product use.
E-MERSIV teams know how to build a high-performance battery pack quickly with an unequalled level of quality.
E-MERSIV teams know how to build a high-performance battery pack quickly with an unequalled level of quality.
Our customers recognise E-MERSIV as being agile. E-MERSIV unparralelled to answer customer.
Our customers recognise E-MERSIV as being agile. E-MERSIV unparralelled to answer customer.
Specific use cases
Sport car bev
50kWh submerged battery pack
Battery pack split into two in serial. Total weight of the solution is approximately 380kg wet.
HEV premium sedan
Submerged battery pack of 7kWh
Redundant battery pack design, each one being standalone. Total weight of the solution approximates 180kg wet.
Your custom battery pack
Custom battery pack for extreme conditions
We adapt the design to your space, size, cost and weight restrictions. Please contact us for more information.
Contact Us
UK contact information coming soon...
6 Avenue de la Grande Lande
33170 Gradignan – France
33170 Gradignan – France