(EN) ENERGY STORAGE AND CONVERSION

(EN) A device (4) for converting energy of a fluid to electrical energy is disclosed. The device comprises a pressure vessel having an inlet port (12) for a fluid. A pair of charge collecting electrodes (15) is spaced apart from each other along a collection direction and disposed within the pressure vessel. An electric field generator is configured to generate an electric field in the pressure vessel along a field direction to separate charged species in the fluid. Other disclosed devices provide a current flow delay to encourage charge build up or illumination with electromagnetic radiation. Yet other devices are arranged for fluid flow rather than pressure. Also disclosed is a system (2) comprising any one of the disclosed devices and related methods. The disclosure may find application, for example, in providing a source of energy for an electric vehicle.