Patent ID: 9512017
Filing Date: 2016-12-06
CPC Classification: C02F

Claim Text:
1. An electrolysis cell comprising at least one inlet and at least one outlet for the electrolyte, further comprising a number of planar electrodes provided with openings through which flow can occur, of which at least one is, by means of functional coating, configured as anode having an increased overpotential for the formation of oxygen compared to the standard hydrogen electrode and at least one further electrode is configured as counterelectrode or cathode, which electrodes, on the basis of their polarity, are arranged in an alternating or pairwise alternating sequence to form a stack, further comprising a number of frame elements which in each case are arranged singly between neighbouring electrodes, where the frame elements simultaneously ensure mutual electric insulation, mutual fluid sealing and a defined spacing between the adjoining electrodes and the electrode stack formed in this way is installed between the inlet and the outlet in such a way that an electrolyte path through which flow can occur and which is sealed fluidically from the surroundings is formed from the inlet through the electrode stack to the outlet, wherein neighbouring electrodes have a mutual clear spacing of not more than 0.5 mm, the openings through which flow can occur in the electrodes are configured as parallel slits or rows of slits which break through the electrodes essentially perpendicularly to the surface thereof, where the individual slits have a width of not more than 1.5 mm and a length of at least three times the width and have a clear spacing perpendicular to their maximum dimension of at least twice the slit width, and the slits or rows of slits in neighbouring electrodes in each case run parallel to one another and are arranged in a defined offset manner relative to one another perpendicularly to the maximum dimension of the slits or rows of slits in such a way that the spacing between one row of slits in an electrode to each immediately adjacent row of slits in the directly adjacent electrodes varies by not more than 25%.