Electrochemical device and process for manufacturing an...

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H01M 8/12 (2006.01) B01D 53/32 (2006.01) H01M 4/88 (2006.01)

Patent

CA 2645122

The present invention relates to an electrochemical device comprising: electrochemical device comprising: at least one porous supporting electrode comprising at least one electronically" conducting material and at least one ionically conducting material, said ionically conducting material having an ionic conductivity, at 800°C, not lower than or equal to 0.005 S/cir-1, preferably of from 0.01 S/cnr-1 to 0.1 S/crrf1, said at least one porous supporting electrode having a thickness higher than or equal to 200 µm, preferably of from 500 µm to 2 mm; - at least one electrolyte membrane having a relative density higher than or equal to 90%, preferably of from 95% to 100% and a thickness lower than or equal to 50 µm, preferably of from 5 µm to 30 µm; at least one porous counter-electrode.

La présente invention concerne un dispositif électrochimique comprenant : au moins une électrode de support poreuse comprenant au moins un matériau électroniquement conducteur et au moins un matériau ioniquement conducteur, ledit matériau ioniquement conducteur présentant une conductivité ionique, à 800°C, supérieure ou égale à 0,005 S/cir-1, de préférence de 0,01 S/cnr-1 à 0,1 S/crrf1, ladite au moins une électrode de support poreuse présentant une épaisseur supérieure ou égale à 200 µm, de préférence de 500 µm à 2 mm; au moins une membrane électrolytique présentant une densité relative supérieure ou égale à 90%, de préférence de 95% à 100% et une épaisseur inférieure ou égale à 50 µm, de préférence de 5 µm à 30 µm; au moins une contre-électrode poreuse.

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