Power unit for naval unit, in particular submarine unit

摘要

An electric power unit for a submarine vessel, wherein an insulating casing (3) houses a plurality of lithium-ion polymer batteries (7), each of which comprises a rectangular-shaped flat body (11) and is provided with a negative/positive electrode (12 and 13) formed by respective metal blades. A series interconnection device (15) is provided for a first and a second battery assembly arranged in parallel with each other, wherein a clamping device (26) compresses a layered structure formed by a first, second and third metal conductor and by the electrodes alternating between the overlaid metal conductors.