Electrochemical metal-air cell and electrically and mechanically rechargeable anodes for use therein
Patent 5318861 Issued on June 7, 1994. Estimated Expiration Date: 
January 11, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
January 11, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3532548 3619297 3630785 InventorsAssigneeApplicationNo. 002656 filed on 01/11/1993US Classes:429/21, By electrical current429/22, Automatic control means429/27, Active material electrode-type cell or subcombination thereof429/41, Having electrolyte matrix or barrier layer429/44, Having an inorganic matrix, substrate or support429/59, Prevention or elimination means is one of the cell electrodes or is electrically connected to an electrode429/142, Having plural distinct components429/233, Grid or holder for active material429/246With insulating separator, spacer or retainer meansExaminersPrimary: Gorgos, KathrynAttorney, Agent or FirmForeign Patent References
International ClassH01M 008/18Foreign Application Priority Data1992-01-10 ILAbstractAn electrochemical metal-air cell for multiple discharge and recharge cycles, includes a housing for accommodating a replaceable metal electrode having a generally planar electrically conductive skeletal member encompassed by an active metal component. At least one generally planar, air permeable but liquid impermeable air electrode is installed at at-least one of the sides of the housing. An electrolyte is provided in contact with the metal and the air electrodes. One or more auxiliary electrodes each constituting a charging anode is engaged when electric current is applied thereto for effecting the reduction and regeneration of the active metal component in one mode of operation, during which the air electrode is disengaged. The charging anode is disengaged in another mode of operation. The metal electrode is removed from the housing to enable the mechanical replacement thereof and is recharged in situ when electric current is applied to the auxiliary charging anode to reduce oxidized active metal thereof.Other References
Field of SearchBy electrical currentActive material electrode-type cell or subcombination thereof Having electrolyte matrix or barrier layer Having an inorganic matrix, substrate or support Automatic control means Envelope type Having plural distinct components With insulating separator, spacer or retainer means Grid or holder for active material Prevention or elimination means is one of the cell electrodes or is electrically connected to an electrode |
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