Electrodes for metal/air batteries and fuel cells and metal/air batteries incorporating the same
First Claim
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1. An air cathode in combination with an oxygen-rich electrolyte-immiscible organic fluid for supplying oxygen thereto.
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Abstract
The invention provides an air cathode in combination with an oxygen-rich electrolyte-immiscible organic fluid for supplying oxygen thereto, as well as providing metal/air batteries and hydrogen-oxygen fuel cells incorporating the same.
108 Citations
12 Claims
- 1. An air cathode in combination with an oxygen-rich electrolyte-immiscible organic fluid for supplying oxygen thereto.
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7. A metal/air battery comprising an air cathode in combination with an oxygen-rich electrolyte-immiscible organic fluid for supplying oxygen thereto.
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8. A bipolar primary metal/air battery of the type having a plurality of electrically series-connected cells, each of said cells comprising an air cathode in combination with an oxygen-rich electrolyte-immiscible organic fluid for supplying oxygen thereto.
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9. A bipolar electrode for use in a primary metal/air battery of the type having a metallic slurry anode, said electrode comprising:
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a) a current-collecting electrolyte-impervious metallic structure having a first surface for collecting current from said metallic slurry anode; b) a metallic foamed or fiber mat having a first surface attached to a second surface of said structure, a second surface of said mat being impregnated with an inner hydrophobic waterproof barrier layer coated with a outer active catalytic layer, said mat constituting an air cathode, and c) means for pumping oxygen-rich electrolyte-immiscible organic fluid through said mat.
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10. A monopolar primary metal/air battery comprising an air cathode in combination with an oxygen-rich electrolyte-immiscible organic fluid for supplying oxygen thereto.
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11. A hydrogen-oxygen fuel cell comprising an air cathode in combination with an oxygen-rich electrolyte-immiscible organic fluid for supplying oxygen thereto.
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12. A bipolar electrode for use in a primary fuel cell battery, comprising:
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a) a current-collecting electrolyte-impervious metallic structure; b) a first mat of nickel foam, nickel fibers or nickel-coated fibers having a first surface attached to a first surface of said structure, a second surface of said mat being impregnated with an inner hydrophobic waterproof barrier layer coated with an outer active catalytic layer, catalytic for oxygen reduction, said mat constituting a cathode; c) a second mat of nickel foam, nickel fibers or nickel-coated fibers having a first surface attached to a second surface of said structure, a second surface of said mat being impregnated with an inner hydrophobic waterproof barrier layer coated with an outer active catalytic layer, catalytic for hydrogen oxidation, said mat constituting an anode; d) means for pumping oxygen-rich electrolyte-immiscible organic fluid through said first mat, and e) means for pumping hydrogen through said second mat.
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Specification