Lehmann Marine Secures first AQUBE Order

Lehmann Marine has secured the debut commercial order for its newly developed AQUBE liquid-cooled battery system.

The high-power energy storage platform AQUBE has been selected by shipbuilder Lloyd Werft in Bremerhaven to power a research vessel built for the German Aerospace Center (DLR), Germany’s national research center for aeronautics, space, energy, and transport.

Set for delivery in 2027, a new 48-meter-long, 11.5-meter-wide DLR seagoing technology platform will serve as an ocean-going, floating platform to validate next-generation climate-neutral propulsion systems, including hydrogen, hybrid, and fully electric setups, under real-world maritime conditions.

Carrying up to 20 researchers and industry partners, the vessel will conduct multi-day test voyages in the harsh environments of the North and Baltic Seas. With global shipping moving to eliminate carbon emissions across a sector that carries over 80% of world trade, this unique vessel bridges the gap between land-based laboratory testing and real-world sea trials.

To power a vessel designed to test the future of propulsion, DLR and Lloyd Werft needed a battery system that balances maximum power output with uncompromising safety and longevity. The AQUBE delivers this through three key innovations:

1. High-power 2C performance: In battery engineering, a 2C rating means the battery can discharge its