Williams Advanced Engineering (WAE) is working with fellow Oxfordshire-based firm, OXIS Energy Ltd, on the production of a world-first battery system, designed for an all-new 40ft electric luxury boat.
The craft, from Yachts de Luxe (YdL) of Singapore and designed bythe renowned boat designer, Jean Jacques Coste, will be the world’s first ever luxury boat to be powered by Lithium Sulfur (Li-S) cell and battery systems technology. The objective is to achieve a range between 70 and 100 nautical miles at cruising speed – setting new standards for range in electric boats.
WAE will be responsible for the state-of-the-art 400 kWh battery system, which comprises ultra-light, high-power/high energy density Li-S cells – provided by OXIS Energy Ltd, – and the battery management system (BMS). The design and manufacture of the cell modules, the BMS and its installation will be carried out by WAE at its dedicated battery facility in Grove.
High performance batteries and BMS are core to WAE’s business. The company was the original supplier of batteries to the entire grid of FIA Formula E World Championship cars in 2014, a relationship that has been revived for 2022-23 season with WAE being awarded the exclusive contract to supply the Gen3 battery system. WAE also supplies battery systems to ETCR and Extreme-E.
As well as having high gravimetric energy density and low predicted costs, the Li-S cells are a safer option for electric marine applications. Furthermore, OXIS’ Li-S technology contains no toxic or rare earth materials in the make-up of its cell technology, making it a safe option for open water transportation. At the end of life, the materials used in the Li-S cells can be disposed of without damaging the environment.
The latest programme celebrates a history of collaborations between Williams Advanced Engineering and OXIS designed to revolutionise the rechargeable battery market including a UK funded, Lithium Sulfur Future Automotive Battery (LiS:FAB) projectand the ALISE programme; a pan European collaboration focused on the development and commercial scale-up of new materials and understanding electrochemical processes involved in Lithium Sulfur technology.
Pictured: M/Y Galaxy of Happiness, designed by Jean Jacques Coste. Courtesy of Fraser Yachts