Leclanché has developed new battery systems for the maritime sector, powering fully electric vessels, such as the 100% fully battery powered e-ferry Ellen. Ellen boasts the world’s largest all-electric ferry powertrain, funded under the European Commission’s Horizon €80bn (US£90bn) 2020 program.

Ellen connects Søby and Fynshav, on the islands of Aerø and Als, in southern Denmark, carrying approximately 30 vehicles and 200 passengers with a capacity of 4.3MWh through graphite/nickel-manganese cobalt lithium oxide (G-NMC lithium-ion) battery cells with a bi-cell laminate design and ceramic separators maximize safety.

It has completed 1,000 trips at 40km, and is expected to reduce annual emissions by 2,000 tonnes of CO₂ , 42 tonnes of NOx, 2.5 tonnes of particulates and 1.4 tonnes of SOx.