Aluminum galvanic cell
AssigneeUniversity of South Florida
InventorsRobert Frederick Benson, Andres M. Cardenas-Valencia, Lawrence C. Langebrake
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Abstract
The present invention provides a galvanic cell having an aluminum anode and a cathode compartment design suitable for carrying out the aqueous electrochemical reaction between solid aluminum metal and aqueous peroxide ions. The galvanic cell is activated when water, aqueous hydroxide solution, or an aqueous salt solution is added to the cell. This reaction releases a significant amount of electrochemical energy from a small size (mass or volume) cell. This cell reaction and design leads to an improvement in energy released over state-of-the-art aluminum/hydrogen peroxide galvanic cells.
Claims13
An electrochemical cell comprising;
- an aluminum anode having an electrode bulk surface area;
- a fiberglass cloth;
- a cathode having an electrode bulk surface area, the cathode comprising a woven metal electrode and a solid alkali peroxide, the cathode positioned adjacent to the first fiberglass cloth, the woven metal electrode of the cathode positioned such that the first fiberglass cloth is between the woven metal electrode and the aluminum anode and the solid alkali peroxide of the cathode positioned such that the woven metal electrode is between the solid alkali peroxide and the first fiberglass cloth, wherein the electrode bulk surface area of the anode and the electrode bulk surface area of the cathode are substantially stoichiometrically matched to satisfy diffusion of ions and to minimize side reactions;
- and
- an aqueous electrolyte.
Dependencies are inferred from the claim text.