Dutch marine battery maker EST-Floattech has expanded its Octopus Series with lithium iron phosphate (LFP) battery modules.
LFP batteries are much safer than lithium-ion batteries as they have a more stable chemical and mechanical structure, which makes them more robust and far less likely to explode when hit, nor regularly experience thermal runaway.
However they are far less energy dense, which is why NMC (nickel manganese cobalt) lithium-ion batteries are chosen for applications that need a compact size and longer range (for example electric vehicles).
EST-Floattech says its new LFP battery ‘is based on the significant advancements made in recent years, especially in terms of energy density and cost per kWh’.
It says they offer ‘superior thermal stability, longer lifecycle performance and enhanced safety’, which makes them ‘ideally suited’ for vessels that discharge by day and charge overnight.
EST-Floattech’s battery ranges are scalable so could provide multiple megawatt hours of power, being installed in modular racks that are flexible in height and width and include integrated ventilation.
The Octopus Series Battery Management System has been developed in-house, says EST-Floattech, and provides real-time diagnostics and monitoring, which enables optimised performance.
“By introducing LFP to our Octopus Series, we empower shipbuilders and operators with even more choice,” said Mark Witjens, EST-Floattech CEO. “We understand that different vessels have different energy profiles. LFP gives us the ability to serve applications with a high energy capacity demand and long discharge and charge cycles with a robust, safe, and cost-effective solution – without compromising on our commitment to reliability and quality. The development of LFP is the logical step for EST-Floattech to cater the growing demand for different chemistries by shipyards and shipowners.”
Lithium iron phosphate batteries can also withstand harsh conditions, be it freezing cold, scorching heat or rough terrain. When subjected to hazardous events, such as collision or short-circuiting, they are far less likely to explode or catch fire.
“This addition enhances our ability to support even more vessel designs and hybrid propulsion systems, enabling cleaner and smarter shipping,” said Diederick Stam, Technical director. “During the entire development process we’ve continuously adhered to our safe by design mentality.”
