Abstract: A separator free electrochemical generator wherein one of the electrodes, particularly the anode, is formed of a particulate active material suspended within an electrolyte and which comprises means for causing the circulation of the suspension formed within the corresponding electrode compartment in contact with a current collector, wherein further the active material forms a coating on cores formed of an inert material, the separation of the opposite electrode compartments being achieved by the collector itself which is provided with holes having sizes sufficient for authorizing the free passage of the electrolyte, however lower than the size of the inert cores of said particles.