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1286results about "Fuel and primary cells" patented technology

Methods of using fuel cell system configured to provide power to one or more loads

A fuel cell system is described for providing primary and/or auxiliary/backup power to one or more loads selected from the group comprising: lawn & garden equipment; radios; telephone; targeting equipment; battery rechargers; laptops; communications devices; sensors; night vision equipment; camping equipment; stoves; lanterns; lights; vehicles; cars; recreational vehicles; trucks; boats; ferries; motorcycles; motorized scooters; forklifts; golf carts; lawnmowers; industrial carts; passenger carts (airport); luggage handling equipment (airports); airplanes; lighter than air crafts; blimps; dirigibles; hovercrafts; trains; locomotives; submarines (manned and unmanned); torpedoes; security systems; electrical energy storage devices for solar-based, tidal-based, hydro-based, wind-based, and other renewable energy source; equipment for which a primary and/or backup power source is necessary or desirable to enable the equipment to function for its intended purpose, military-usable variants of above, and suitable combinations of any two or more thereof. The system provides power to the one or more loads upon the occurrence of a power outage condition, which includes a disruption or discontinuation in the delivery of primary power (i.e., power from a system-external primary source, namely, a source other than the fuel cell system) to, or power demand condition by, the one or more loads. A controller senses outage of primary power to, or demand for primary power by, the one or more loads, and, responsive thereto, operatively engages one or more fuel cells to provide power to the one or more loads.

Refuelable and rechargeable metal-air fuel cell battery power supply unit for integration into an appliance

A refuelable and rechargable metal-air FCB based power supply unit for integration into a device/system for generating and providing electrical power to at least one electrical-energy-consuming load device disposed therein. An external power source is used to recharge the metal-air FCB subsystems embodied therein. A control subsystem automatically transitions between discharging mode (wherein at least one metal-air FCB subsystem supplies electrical power to the electrical power-consuming load device) and a recharging mode (wherein the external power source is electrically coupled to at least one metal-air FCB subsystem to thereby recharge the metal-air FCB subsystem(s). The metal-air FCB subsystem(s) are refueled by manually loading and unloading metal-fuel from the metal-air FCB subsystem(s). Preferably, electrical power provided to the at least one electrical power-consuming load device is supplied solely by electrical power generated by discharging metal-fuel in the metal-air fuel cell battery subsystem(s). In addition, the metal-air FCB subsystem(s) preferably has a modular architecture that enable flexible and user-friendly operations in loading of metal-fuel, unloading of consumed metal-fuel, replacement of the ionic-conducting medium, and replacement of the cathode.

Integrated fuel cell and electrochemical power system employing the same

An electrochemical power system including one or more fuel cells integrated on or into a substrate is described. For each fuel cell, at least two stacked layers comprising a cathode layer and an ion exchange layer are situated within the substrate. A first access path for allowing an oxidant to access the cathode layer is provided from one side of the substrate, and a second access path for allowing a fuel or a reaction medium containing a fuel to access a layer in the stack is provided from the other side of the substrate. A third access path, which may be the same or different from the second access path, allows egress of one or more reaction products from the layer. A first conductor connects to the cathode, and a second conductor connects to the second access path or the layer in the stack accessible through the second access path. A regeneration unit for regenerating fuel from one or more reaction products also can be integrated on or into the substrate. The regeneration unit comprises a reaction chamber with one or more areas of ingress and one or more areas of egress. A first flow path interconnects the one or more areas of egress of the reaction chamber with the second access path of the one or more fuel cells. A second flow path interconnects the third access path of the one or more fuel cells with the one or more areas of ingress of the reaction chamber.
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