Energizer Brands, LLC

Dawn Marie Freeman

Zhufang Liu

Angelo Mandato

Various embodiments are directed to an electrochemical cell having a non-homogeneous anode. The electrochemical cell includes a container, a cathode forming a hollow cylinder within the container, an anode positioned within the hollow cylinder of the cathode, and a separator between the cathode and the anode. The anode comprises at least two concentric anode portions, defined by different anode characteristics. For example, the two anode portions may contain different surfactant types, which provides the two anode portions with different charge transfer resistance characteristics. By lowering the charge transfer resistance of a portion of an anode located proximate the current collector of the cell (and away from the separator) relative to an anode portion located adjacent the separator, improved cell discharge performance may be obtained.

Alkaline battery having a dual-anode

Alkaline electrochemical cells are provided, wherein a long-chain surfactant is included in at least one component of the cell in order to delay anode shutdown. Methods for preparing such cells are also provided.

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Westlake, OH, United States of America

Dawn Marie Freeman