elektrolysecel with an anode section with an electrolyte and gas permeable anode and a cathode section with a gas permeable for electrolyte and cathode.by a flexible ionenuitwisselingsmembraan, impervious to the hydrodynamic flow, separated,and a method for the preparation of halogen and alkalimetaalhydroxyde by electrolysis of an aqueous solution of alkalimetaalhalogenide.