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US 10,381,643 B2Granted
Fluorosurfactant as a zinc corrosion inhibitor
AssigneeEnergizer Brands, LLC
InventorJack W. Marple
Life of this patent
Estimating the term…
Abstract
An alkaline electrochemical cell, preferably a zinc/air cell which includes a container; a negative electrode, a positive electrode, wherein said negative electrode and said positive electrode are disposed within the container, a separator located between the negative electrode and the positive electrode, and an alkaline electrolyte, wherein the negative electrode comprises zinc, and a branched chain fluorosurfactant. The fluorosurfactant is preferably a sulfotricarballylate surfactant with multiple fluorinated end groups.
Claims21
An alkaline electrochemical cell, comprising:
- a container, a negative electrode, a positive electrode, wherein said negative electrode and said positive electrode are disposed within the container, a separator located between the negative electrode and the positive electrode, and an alkaline electrolyte, wherein the negative electrode comprises zinc and a sulfotricarballylate surfactant;
- wherein the surfactant forms at least one monolayer on the surface of said zinc.
An alkaline electrochemical cell, comprising:
- a container, an electrode assembly disposed within the container and comprising a negative electrode, a positive electrode, a separator located between the negative electrode and the positive electrode, and an alkaline electrolyte, wherein the negative electrode comprises zinc and a fluorosurfactant, wherein said fluorosurfactant has more than one fluorinated end group;
- and wherein the fluorosurfactant forms at least one monolayer on the surface of said zinc.
Dependencies are inferred from the claim text.