Gas-diffusion electrode for electrolyte-percolating cells

Details Gas-diffusion electrode for electrolyte-percolating cells Gas-diffusion electrode for electrolyte-percolating cells

C - Chemistry, Metallurgy

25

B

C25B 1/46 (2006.01) C25B 11/03 (2006.01) H01M 4/86 (2006.01)

Patent

CA 2648393

The invention relates to a gas-diffusion electrode for chlor-alkali electrolysis cells integrated in a percolator of plastic porous material suitable for being vertically crossed by a downward flow of electrolyte. The electrode comprises a catalytic composition based on silver and/or nickel mixed to a polymeric binder, directly supported on the percolator without any interposed reticulated metal current collector.

La présente invention concerne une électrode de diffusion gazeuse destinée à des cellules d'électrolyse chlore-alcali intégrées dans un percolateur en matière plastique poreuse conçu pour être traversé verticalement par un flux descendant d'électrolyte. L'électrode comprend une composition catalytique à bade d'argent et/ou de nickel mélangé à un liant polymère, directement soutenu par le percolateur sans un quelconque collecteur de courant métallique réticulé intercalé.

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