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U.S. Department of Energy
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Rechargeable alkaline MnO/sub 2/--zinc cell. [reserve Zn mass not part of electrode for extra capacity]

Patent ·
OSTI ID:6610734
The rechargeable cell comprises a cathode formed from a compressed mixture of manganese dioxide particles, electrically conductive particles, and a binder; an anode separated from the cathode and containing amalgamated metallic zinc particles on an electrically conductive carrier in an amount sufficient to provide a limited anode discharge capacity of about one-third of the cathode capacity; an aqueous alkaline electrolyte; and a charge reserve mass comprising an oxide or hydroxide of zinc in an amount sufficient to provide a charge reserve capacity for the cell equal to at least 50 percent of the anode discharge capacity. 6 figures.
Assignee:
Union Carbide Corp.
Patent Number(s):
US 4091178
OSTI ID:
6610734
Country of Publication:
United States
Language:
English