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Metal-air power supply and air-manager system, and metal-air cell for use therein

  • US 5,354,625 A
  • Filed: 03/16/1992
  • Issued: 10/11/1994
  • Est. Priority Date: 03/16/1992
  • Status: Expired due to Term
First Claim
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1. A metal-air power supply comprising:

  • a housing;

    a metal-air cell disposed in the housing, the metal-air cell having an air cathode;

    means for producing a flow of air through the housing;

    means for directing a reactant portion of the air flow through a reactant air inlet to the air cathode and for exhausting the reactant portion of the air flow from the cell;

    means for directing a cooling air portion of the air flow through a cooling air inlet to a portion of the cell isolated from the air cathode, isolating the cooling air portion from the air cathode and the reactant portion, and exhausting the cooling portion of the air flow from the housing, the reactant air inlet and the cooling air inlet being separate from one another and isolated from the exhausted reactant and cooling portions of the air flow;

    means for limiting the reactant air flow to a volumetric flow rate sufficient to provide from about 3 to about 10 times the stoichiometric amount of oxygen necessary to produce a predetermined level of current from the cell, the air flow producing means producing a total volumetric flow rate sufficient so that the cooling portion of the air flow has a volumetric flow rate from about 10 to about 1000 times the volumetric flow rate of the reactant portion of the air flow.

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