Abstract: Electrolysis cell having bipolar elements arranged side by side are characterized by an assembly of modules, the cohesion of which is ensured by assembly means from module to module. The cell can be applied in particular to the electrolysis of solutions of alkali salts.

Abstract: The invention relates to an electrolysis cell having bipolar elements, characterized in that the recess between the bipolar elements and the impermeability between any two consecutive electrode frames are ensured by the peripheral surfaces opposite the said frames which have, on their most external part, a non-deformable rigid face forming a plane of contact resting against the plane of contact of the adjacent frame. At least one of the opposing surfaces has at least one recess in which at least one sealing member is arranged.The cell is particularly useful for the electrolysis of solutions of alkali salts.

Abstract: Bipolar electrodes are provided for electrolysis cells of the filter-press type with incorporated cathode and/or anode frames. These frames are integrated in the bimetallic base plate of the electrode serving as reference plane, perpendicularity with respect to said plane being assured with respect to the cathode and anode portions by the current leads to which they are welded, these current leads serving as stiffeners and resulting in the planarity of these electrode portions and their parallelism with respect to the reference plane formed by the bimetallic base plate.These electrodes are highly efficient in the electrolysis of alkaline chlorides.