Eveready Battery Company, Inc.

Energizer Brands, LLC

Wayne B Bennett

Jingdong Guo

Donna L Lubin

Robert Brian Dopp

The invention is an electrochemical cell with a catalytic electrode and an aqueous alkaline electrolyte within a cell housing having one or more ports for the passage of a gas to or from the catalytic electrode and a process for making the cell. The catalytic electrode includes a catalytic layer, containing a catalytic material, and a porous current collector, at least partially embedded in the catalytic layer. The current collector includes a substrate with an electrically conductive metal layer, in contact with the catalytic material on the side of the current collector facing the ports, and a coating including electrically conductive particles, in contact with the catalytic layer on the side facing the separator.

Current collector for catalytic electrode

An alkaline electrochemical cell having a barium compound additive in the anode according to one embodiment, and in both the anode and the cathode according to another embodiment. The anode of the present invention comprises an active anode material such as zinc, and an anode additive comprising a barium compound, such as barium sulfate in the amount of up to 8% by weight of active anode materials. According to another embodiment, the cathode of the electrochemical cell comprises an active cathode material, such as manganese dioxide, and also has an additive comprising a barium compound, such as barium sulfate. The anode and cathode of the present invention are particularly adapted for use in an electrochemical cell having an alkaline electrolyte.

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Westlake, OH, United States of America

Wayne B Bennett