Mahle has developed a new cooling system for batteries.

Cooling is a major challenge, especially when it comes to fast charging battery-powered electric vehicles and the Stuttgart-based automotive supplier relies on immersion cooling as a key technology.

An electrically nonconductive coolant flows around the cells, ensuring maximum temperature of the battery drops markedly during charging and overall temperature is distributed much more homogeneously. Immersion cooling shortens the charging times in electric cars considerably.

The batteries can therefore be smaller, making electric cars cheaper and more resource-efficient.

“Immersion cooling paves the way for a whole new generation of battery systems,” said Mahle VP Corporate Research and Advanced Engineering, Martin Berger.

Mahle is transferring its experience in plastics, thermal management, and power electronics into new integrated solutions.

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The technology group is focusing on areas where e-mobility still needs a boost; charging speed, range, resource conservation and price.