Electrochemical cells for energy harvesting

Details Electrochemical cells for energy harvesting Electrochemical cells for energy harvesting

2009-06-08

2011-12-20

Maples, John S (Department: 1728)

Chemistry: electrical current producing apparatus, product, and

Fuel cell, subcombination thereof, or method of making or...

C429S523000

Reexamination Certificate

active

08080341

ABSTRACT:
A device having a positive electrode, a negative electrode, and an ion-conducting electrolyte in contact with both electrodes. Each electrode has a metal, a metal oxide, a hydrous metal oxide, alloy thereof, or mixture thereof, however, the electrodes are different such materials. The positive electrode is capable of storing and donating ions and electrons and reducing oxygen. The negative electrode is capable of storing and donating ions and electrons and oxidizing hydrogen. The electrolyte permits transport of oxygen and hydrogen. The device can charge using ambient hydrogen and oxygen. It can be discharged as an electrochemical capacitor or be operated in a fuel cell mode.

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Wartena, Ryan et al., “Asymmetric Hydrous . . . Capabilities”, NRL Surface Chemistry Branch, 2002 (no month), vol. 26, 444-445.
202ndMeeting of the Electrochemical Society, “Surface Potential . . . Ruthenium Oxide”, Salt Lake City, UT, Oct. 20-25, 2002.

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