The present invention relates to an electrolyser for the production of at least one chemical substance, such as dihydrogen, dioxygen, chlorine or hypochlorous acid, or sodium hydroxide, by electrolysis of pure water or water containing at least one salt, base and / or acid such as NaCl, H SO, KOH or NaOH, comprising a stack of at least a first and a second consecutive electrolytic cell, each electrolytic cell (10) comprising: - an anode, - a cathode, - a membrane ion exchanger (11) disposed between the anode and the cathode, the ion exchange membranes (11) of the first and second electrolytic cells being separated by a bipolar electrode (15) forming on the one hand the anode of the first electrolytic cell and secondly the cathode of the second electrolytic cell.
展开▼
