By Robert Wielaard
Hybrid technologies are still embryonic in superyacht manufacturing, but that is changing, says Marinus Doornekamp, CEO of Super B, a Dutch manufacturer of a new generation of lithium iron phosphate traction and starter batteries. He is currently in negotiations with Benetti Yachts to provide the Italian yards with small, lightweight batteries that he says last longer than rivals.
Super B says its Lithium Iron Phosphate batteries for industrial and leisure marine purposes are more reliable and safer. To underscore longevity, the company will soon start generating battery performance readouts for clients based on their battery use. “Standard cycle measurements are meaningless. Our client read-outs will give a clearer picture of their battery’s life span.”
Speaking to SB at the June 23-25 Electric & Hybrid Marine World Expo in Amsterdam, Doornekamp said he sees ample opportunities for hybrid in the superyacht sector I propulsion and other areas. “Superyacht owners are entrepreneurs who are not averse to cutting-edge technologies.”
Impacting on hybrid’s advance is varying power demand, says Doornekamp. A big car battery is 85Kwh but a small hybrid marine battery is 150Kwh. The life of car or laptop battery ends after 500 or so cycles. Marine installations last 5,000 to 10,000 cycles. Doornekamp sees ever stringent emission rules turning hybrid from an industry choice to an industry standard by 2030. “I don’t think we will see big changes in the short term. Technology takes between 20 and 40 years to mature.”
Doornekamp says Super B’s lithium iron phosphate B battery is the safest, most reliable type of Lithium Iron Phosphate technology. Super B has a full range, from 3.2Ah to 160Ah which can be used up to 1500V in series and parallel configurations. “It provides excellent performance through high energy density along with reduced weight,” says Doornekamp. A single Super B battery weighs up to 80% less than conventional batteries. Super Batteries charge quickly, have a self-discharge rate of only 10% per year and are 1/3 the size of conventional lead acid batteries, says Doornekamp.