Elektrolysezelle mit hoher Stromkapazitaet zur Herstellung eines Ozon-Sauerstoffgemisches

DE 102007042171 A1 UPAB: 20090403 NOVELTY - The electrolysis cell with high power capacity for the production of ozone-oxygen mixture, comprises two electrode edge plates with lead-in wire and a bipolar electrode plate that are contacted together through a solid electrolyte membrane (5) and compressed together by a chip frame. The electrode base body is made of impregnated graphite. In the electrode base body (1), inlet and discharge lines for electrolysis media (13, 15, 17, 18), flow channel (14, 16) in cathode side for catholyte media and hydraulic or pneumatic pressing mechanism (10, 11, 12) in the anode side are incorporated. DETAILED DESCRIPTION - The electrolysis cell with high power capacity for the production of ozone-oxygen mixture, comprises two electrode edge plates with lead-in wire and a bipolar electrode plate that are contacted together through a solid electrolyte membrane (5) and compressed together by a chip frame. The electrode base body is made of impregnated graphite. In the electrode base body (1), inlet and discharge lines for electrolysis media (13, 15, 17, 18), flow channel (14, 16) in cathode side for catholyte media and hydraulic or pneumatic pressing mechanism (10, 11, 12) in the anode side are incorporated. The structured anode plates are made of self-passivation metal equipped with an active layer and bind in plastic anode frames, which are equipped with flow channels for transporting the anolyte medium to and/or from the anode plates. The pressing mechanism is formed from pneumatic or hydraulic inflatable thrust bolts that press the anode plate against the solid electrolyte membrane by movably arranged thrust plate. The anode frame and anode plate are separated through isolating, flexible plastic foils from the electrode base plate with the pressing mechanism. The contacting of the anode plate is carried out by contact foils that are connected to the isolated plastic foil or beneath the anode frame with the electrode base plate. The anode plate consists of expanded metals or sheet metals in which slits are incorporated in flow direction. The anode plates are equipped with longitudinal- or transversal shaft in which fine openings are incorporated in the flow direction and shaft upper side adjacent to the electrolyte membrane. The active layer of the anode plate consists of doped diamond, noble metal or noble metal containing oxide. The anode plates are formed out of partial sections flow throughable one after other in flow direction. The solid electrolyte membrane is cation exchange membrane with a perflourinated synthetic resin matrix. A gas diffusion layer is arranged between the cathode channel and the electrolyte membrane, compresses by the pressing mechanism on the path between the cathode channel and on the solid electrolyte membrane and is contacted with the cathode channel and the electrolyte membrane. Plastic inlet and outlet segment are incorporated in the electrode base body and allow supply and discharge of the anolyte medium isolated against the graphite base body. The movably arranged pressing plate consists of rigid plates that are equipped in the direction of the anode with flexible intermediate layers. The surface of the anode plate is 100-1000 cm2. USE - Electrolysis cell with high power capacity for the production of ozone-oxygen mixture useful for wastewater treatment, drinking water disinfection and pure water production. ADVANTAGE - The electrolysis cell ensures production of ozone-oxygen mixture with high yield even in low cell voltage by uniform pressure distribution.