Reference electrode, manufacturing method and battery comprising same
AssigneeCommissariat a l'Energie Atomique
InventorAngel Zhivkov Kirchev
Life of this patent
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Abstract
A reference electrode having a casing with an inner cavity successively filled with a paste constituting an active material and a porous material impregnated with an electrolyte solution. The projecting end of a silver wire is embedded in the paste at the bottom of the inner cavity. The paste is constituted of a powder of a silver compound and of the alkaline electrolyte solution. The silver compound is any insoluble silver salt or oxide containing the negative ion of the electrolyte solution. The impregnated porous material is preferably constituted by a plurality of mat separator pieces mechanically and compressed by a closing plug, closing the inner cavity and forming a porous liquid junction.
Claims13
Reference electrode comprising successively, within an inner cavity of a casing, an active material comprising particles of a silver compound and a porous material impregnated with an electrolyte solution, a silver wire fixed to a bottom of the inner cavity being partially embedded in said active material and said inner cavity being closed by a closing plug forming a porous liquid junction, electrode wherein said silver compound is an insoluble silver salt or oxide containing the negative ion of said electrolyte solution, said active material is made of a paste, constituted of a powder of said silver compound and of said electrolyte solution, and said impregnated porous material is mechanically compressed by said closing plug.
Dependencies are inferred from the claim text.