Immersion cooling shortens charging time of e-car batteries

September 07, 2021 // By Christoph Hammerschmidt
Immersion cooling shortens charging time of batteries for e-cars
The automotive supplier Mahle GmbH, an expert for thermal management in vehicles, has developed a new type of cooling for batteries. This is because cooling is the key challenge, especially when it comes to fast-charging battery-powered e-vehicles.

What is new is the use of immersion cooling to cool the batteries. Here, an electrically non-conductive cooling liquid flows around the cells. This ensures that the maximum temperature of the battery drops significantly during charging and that the temperature is distributed much more homogeneously overall. Immersion cooling considerably shortens the charging times of electric cars. The batteries can thus be smaller. This makes e-cars cheaper and more resource-efficient, the manufacturer promises.

"Immersion cooling paves the way for a whole new generation of battery systems," says Martin Berger, Head of Group Research and Advance Engineering at Mahle. The company is transferring its know-how in the areas of plastics, thermal management and power electronics to new integrated solutions. In this way, the technology group is taking action where e-mobility still needs a boost - in terms of charging speed, range, resource conservation and price.

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