Patent ID: 8080341

Claim:
A method of harvesting energy comprising the steps of; providing a device comprising: a positive electrode comprising a positive electrode material selected from the group consisting of a metal, a metal oxide, a hydrous metal oxide, semiconductor, alloys thereof, and mixtures thereof; wherein the positive electrode is capable of storing and donating ions and electrons; and wherein the positive electrode is capable of reducing oxygen; a negative electrode comprising a negative electrode material selected from the group consisting of a metal, a metal oxide, a hydrous metal oxide, semiconductor, alloys thereof, and mixtures thereof; wherein the negative electrode material is different from the positive electrode material; wherein the negative electrode is capable of storing and donating ions and electrons; wherein the negative electrode is capable of oxidizing hydrogen; and an electrolyte that permits transport of oxygen and hydrogen in contact with the positive electrode material and the negative electrode material; allowing the device to charge by consumption of ambient hydrogen and oxygen gases; and discharging the device.