German-based Lehmann Marine, developer of marine battery systems, has introduced its latest product development, the AQUBE.
The introduction follows the company’s recent merger with the Greek Sunlight Group, which has positioned Lehmann Marine to scale up its production capacity to up to 300 MWh per year.
The new water-cooled, high-power energy storage solution further develops the design of Lehmann Marine‘s CUBE battery system and uses the water-cooling technology derived from its COBRA battery system.
AQUBE features lithium-iron-phosphate (LFP) cell chemistry with a continuous 2C charge/discharge capability.
Extreme situations
“Compared to traditional nickel-manganese-cobalt (NMC) batteries, LFP batteries are considerably safer, even in extreme situations where thermal runaway may occur, as LFP batteries are not susceptible to fires,” explained a spokesperson from Lehmann Marine.
“In the event of thermal runaway, only gas is released and vented outside. This feature renders Lehmann Marine‘s LFP battery solutions more environmentally friendly and markedly safer for use on board ships.”
Other system features include a modular and flexible design with the compact system concept allowing for the adaptation of batteries to meet the individual needs of various vessels with limited space.
Maritime applications
The system is certified for a range of maritime applications and is designed to meet DNV and ESTRIN standards.
The units can be configured in strings of up to 1,000 VDC.
The battery system features an integrated battery management system (BMS), pre-charge functionality, customised racking, and a newly developed switch unit.
AQUBE is designed for easy connection to a vessel‘s water cooling system.
Delivery of the first systems is scheduled for mid-2026.
 cell chemistry with a continuous 2C charge/discharge capability.){kind=link}