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OwnerYitzhak Klein, Jonathan R. Goldstein +2inventors
InventorsYitzhak Klein, Jonathan R. Goldstein, Perach Valentina, Esther Kobliakov
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The present invention relates to a separator for use in alkaline secondary zinc cells and for use in electrochemical systems where permeation of hydroxyl ions is desired and where permeation of zincate ions is to be inhibited, comprising an inert support to which there is applied a layer comprising a polymeric binder and a carbonate or hydroxycarbonate of nickel, cerium, lanthanum, magnesium or calcium, or a mixture of any of these or which comprises a self-supporting structure of such polymeric binder or matrix-forming material and such carbonate or hydroxycarbonate. There may be incorporated in such separator electrocatalysts and fillers or surface extenders. The invention also relates to the process of production of such membranes.
A separator for use in alkaline secondary zinc cells and for use in electrochemical systems where permeation of hydroxyl ions is desired and where permeation of zincate ions is to be prevented, comprising an inert porous support sheet to which there is applied a layer comprising a polymeric binder and a compound selected from the group consisting of carbonates and hydroxy-carbonates of nickel, cerium, lanthanum, and mixtures thereof.
A separator for use in alkaline secondary zinc cells and for use in electrochemical systems where permeation of hydroxyl ions is desired and where permeation of zincate ions is to be prevented, comprising a selfsupporting sheet of an inert polymeric binder and a compound selected from the group consisting of carbonates and hydroxy-carbonates of nickel, cerium, lanthanum, and mixtures of thereof.
A separator for use in alkaline secondary zinc cells and for use in electrochemical systems where permeation of hydroxyl ions is desired and where permeation of zincate ions is to be prevented, comprising an inert porous support sheet to which there is applied a layer comprising a polymeric binder and a compound selected from the group consisting of carbonates and hydroxy-carbonates of nickel, cerium, lathanum, magnesium, and mixtures thereof and further comprising from 1 to 20 weight percent of an electrocatalyst.
Dependencies are inferred from the claim text.