Lloyd’s Register approves Lehmann Marine’s CUBE battery system

Lehmann Marine, a Germany-based lithium iron phosphate (LFP) battery systems specialist, has received type approval from the UK classification society Lloyd’s Register for its CUBE battery system.

According to Lehmann, CUBE provides a modular LFP battery design with “superior” energy density. Any power storage scale is said to be available by freely configuring modular units in strings of up to 1,000 VDC. They include an integrated battery management system (BMS), gas exhaust and pre-charge functionality, the company said, claiming that the battery system “excels with a superior energy density,” being able by design to be stacked flexibly for optimum use of space. CUBE’s air-cooling technology, reportedly, ensures uniform cooling of all cells for the highest cycle life.

Alexander Lehmann, Managing Director of Lehmann Marine, commented: “We are honoured to receive this recognition from Lloyd’s Register. This next milestone underscores our commitment to delivering high-quality, safe, and sustainable battery solutions to the maritime sector. We want to express our gratitude to the experts of Lloyd‘s Register for the smooth cooperation they have shown during the certification process.”

To note, Lloyd’s Register is the fourth major classification society to approve the CUBE battery system, following Bureau Veritas, DNV and RINA. As per Lehmann, this further underlines the company’s battery modules‘ reliability, safety and quality, paving the way for broader adoption across the maritime industry.

“With this latest certification, shipbuilders, operators, and integrators are set to have even greater confidence in the CUBE system’s compliance with stringent industry standards,” the company pointed out.

In the future, Lehmann wants to secure additional type approvals from classification societies like the ClassNK to unlock even more market opportunities.

It is worth mentioning that Greek battery producer Sunlight Group is set to acquire a 51% stake in Lehmann Marine. As disclosed, the agreement represents a strategic move to strengthen both companies’ positions in the rapidly expanding maritime battery market.