Metal/air cells and air cathodes for use therein

Patent · Tue Dec 09 04:00:00 EST 1975

OSTI ID:7280730

Buzzelli, E S

An air cathode for use in metal/air cells is described comprising a hydrophobic layer laminated to a hydrophilic layer wherein the hydrophilic layer comprises a metal current collector integrally molded into a composition comprising: (i) an oxygen absorption/reduction carbon, (ii) 50 to 70 percent by weight manganese dioxide, (iii) at least one of polytetrafluoroethylene and fluorinated ethylene propylene, and (iv) Ag-Hg catalyst. The hydrophobic layer preferably comprises a sheet of porous, unsintered, completely fibrillated polytetrafluoroethylene which is laminated to the hydrophilic layer. A metal/air cell is provided which includes said air cathode together with a spaced apart anode selected from iron, zinc, cadmium, or like metal, in an alkali hydroxide electrolyte.

• Assignee: Westinghouse Electric Corp.
• Patent Number(s): US 3925100
• OSTI ID: 7280730
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
AIR
ALLOYS
CADMIUM-AIR BATTERIES
CATHODES
CHALCOGENIDES
CRYOGENIC FLUIDS
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTRODES
ELEMENTS
ENERGY STORAGE SYSTEMS
FLUIDS
FLUORINATED ALIPHATIC HYDROCARBONS
GASES
HALOGENATED ALIPHATIC HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROXIDES
IRON-AIR BATTERIES
MANGANESE COMPOUNDS
MANGANESE OXIDES
MERCURY ALLOYS
METAL-GAS BATTERIES
NONMETALS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC POLYMERS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLYETHYLENES
POLYMERS
POLYOLEFINS
POLYTETRAFLUORETHYLENE
SILVER ALLOYS
TEFLON
TRANSITION ELEMENT COMPOUNDS
ZINC-AIR BATTERIES