Reactive metal hydrogel/inert polymer composite anode and primary metal-air battery
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorWilliam A. Ferrando
Life of this patent
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Abstract
An anode for use in a primary metal-air battery having an alkaline or neutral salt electrolyte, the anode comprising: a low molecular weight reactive metal substrate; a low molecular weight reactive metal powder; and at least a two-component electrolyte resistant polymer system; the first component is an ionic conductive linearized hydrogel, the second component is an inert structural polymer matrix, the reactive metal powder is dispersed and the first component is uniformly dispersed within the second component to form a material, and the reactive metal is selected from the group consisting of magnesium, aluminum, tin, mixtures of aluminum, tin and magnesium and alloys thereof.
Claims11
An anode for use in a primary metal-air battery having an alkaline or neutral salt electrolyte, said anode comprising:
- a low molecular weight reactive metal substrate;
- a low molecular weight reactive metal powder;
- and
- at least a two-component electrolyte resistant polymer system;
- wherein a first component is an ionic conductive linearized hydrogel,
- wherein a second component is an inert structural polymer matrix,
- wherein said reactive metal powder and said first component are dispersed within said second component to form a material wherein said first component is uniformly dispersed,
- wherein said reactive metal powder comprises Al
- said material coats said substrate, and
- wherein said reactive metal is aluminum, and
- wherein said reactive metal powder has a weight % of from about 15 wt % to about 95.5 wt % of the material.
A primary battery anode for use in a primary metal-air battery having an alkaline or neutral salt electrolyte, said anode comprising:
- aluminum and/or an aluminum alloy substrate;
- aluminum and/or an aluminum alloy powder;
- linearized polyacrylic acid;
- and
- polystyrene or polymethyl methacrylate;
- and
- wherein said powder and said polyacrylic acid are dispersed within said polystyrene or polymethyl methacrylate to form a material, wherein said polyacrylic acid is uniformly dispersed, and
- wherein said material coats said substrate.
A primary metal-air battery containing a lightweight, portable, environmentally friendly aluminum hydrogel/inert nonporous polymer anode, said battery comprising:
- an air cathode;
- KOH or NaOH or NaCl or KCl electrolyte;
- and
- an aluminum composite anode;
- wherein said anode composite comprises:
- aluminum or aluminum alloy substrate;
- aluminum or aluminum alloy powder;
- and
- at least a two-component electrolyte resistant polymer system;
- wherein a first component is an ion conducting linearized hydrogel comprising polyacrylic acid,
- wherein a second component is an inert structural polymer matrix comprising polystyrene or polymethyl methacrylate,
- wherein said aluminum or aluminum alloy powder and said first component are dispersed within said second component to form a material, wherein said first component is uniformly dispersed, and
- wherein said material coats said aluminum or aluminum alloy substrate to form an aluminum anode composite.
Dependencies are inferred from the claim text.