Electric drives for water sports equipment – with Wevo potting compounds

Flying across the water at speeds of up to 50 km/h – made possible by a powerful 14 hp motor and an exchangeable lithium-ion battery with a capacity of 3.6 kWh for the jet-powered surfboards made by Lampuga. The latest generation of electric surfboard from the German manufacturer, the AIR 4, is also available from rental stations in a number of holiday resorts. To ensure safe operation and longevity of the battery pack, the company trusts in Wevo’s many years of expertise in the manufacture of customised high-performance materials.

The specially developed polyurethane potting compounds ensure reliable sealing of the battery even though the surfboard is used in corrosive salt-water. Among other things, Wevo’s developers have optimised the adhesion properties to provide for dependable connection of the cells and the control unit to the housing.

OPTIMISED PROPERTIES: TARGETED HEAT DISSIPATION, ELECTRICAL INSULATION

In addition to the adhesion properties, the compounds’ flow behaviour is one of their key advantages over silicone-based materials that are already being used for applications of this type: their good flow behaviour and low viscosity ensure bubble-free potting between the cells, which, in turn, ensures effective thermal management and electrical insulation, among other things. Thanks to the resulting good bond, the battery can also withstand the mechanical stress of water sports enthusiasts standing on the board.

In this way, Wevo is not only enabling long-lasting and safe fun on the water – the materials are also suitable for use in numerous other battery applications, such as battery packs for power tools.