Electrochemical cell having inflatable seals between electrodes
First Claim
1. Electrochemical cell for completion of electrochemical processes by means of ion conducting solutions, said cell comprisinga plurality of plate-like electrodes, each electrode having at least one sealing surface,a plurality of electrode frames which hold said electrodes in parallel spaced apart relationship to form electrolyte spaces therebetween, each electrode frame having at least one sealing surface which faces a respective sealing surface of an electrode, anda plurality of hose-like tubular sealing elements, at least one said sealing element positioned against each sealing surface of an electrode and against the facing sealing surface of a frame, the sealing elements having a cross section which is expandable under pressure, whereby,a liquid impermeable seal can be formed between each pair of facing sealing surfaces by applying internal pressure to the tubular sealing element.
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Accused Products
Abstract
An electro-chemical cell suitable for chromic acid regeneration or the electro-chemical treatment of methane sulphonic acid has several plate shaped bipolar electrodes which are spaced by means of frames to form an electrolyte space between every two adjacent electrodes. The electrolyte spaces are closed at the sides and at the bottom so they are impermeable to liquids and adjacent bipolar electrodes are electrically insulated against each other. The electrodes are tightly secured against the frame by means of hose-shaped sealing elements that can expand if internal pressure is applied, these sealing elements each being located in a fixed position in a U-shaped groove inside the frames. The cell is not sealed at the liquid surface of the electrolyte, however, it can be equipped with a cover, depending on the application. In order to remove an electrode, the sealing pressure is decreased by means of a pressure reduction in the interior of the sealing elements.
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18 Claims
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1. Electrochemical cell for completion of electrochemical processes by means of ion conducting solutions, said cell comprising
a plurality of plate-like electrodes, each electrode having at least one sealing surface, a plurality of electrode frames which hold said electrodes in parallel spaced apart relationship to form electrolyte spaces therebetween, each electrode frame having at least one sealing surface which faces a respective sealing surface of an electrode, and a plurality of hose-like tubular sealing elements, at least one said sealing element positioned against each sealing surface of an electrode and against the facing sealing surface of a frame, the sealing elements having a cross section which is expandable under pressure, whereby, a liquid impermeable seal can be formed between each pair of facing sealing surfaces by applying internal pressure to the tubular sealing element.
Specification