One object of the present disclosure is to provide a production method of magnesium hydride that is free of carbon dioxide and has high production efficiency, a power generation system that does not emit carbon dioxide or radiation using magnesium hydride, and an apparatus for producing magnesium hydride; therefore, the method for producing magnesium hydride of the present disclosure comprises a procedure for irradiating a magnesium compound different from magnesium hydride with hydrogen plasma, and a procedure for depositing a magnesium product containing magnesium hydride on a depositor for depositing magnesium hydride disposed within the range in which hydrogen plasma is present, wherein the surface temperature of the depositor is kept no more than a predetermined temperature at which magnesium hydride precipitates.

A hydrogen-developing body of an apparatus for producing hydrogen from an electrolyte solution is disclosed. The hydrogen-developing body is formed from magnesium (Mg) or zinc (Zn) or the like, or an alloy thereof, or has an electrolyte-contacting surface which is formed from magnesium (Mg) or zinc (Zn) or the like, or an alloy thereof. The electrolyte-contacting surface has regions formed from iron (Fe) or a Fe alloy, or the like, which are pellet-shaped and stochastically embedded into the surface such that the Fe/Fe alloy pellets are exposed to the environment of the body.

A controller for a fuel cell based power generator includes a memory and a processor configured to execute executable instructions stored in the memory to receive a pressure in an anode loop of the fuel cell based power generator, wherein the anode loop includes a hydrogen generator and an anode loop blower, and control the anode loop blower such that the hydrogen generator provides hydrogen to an anode of a fuel cell via the blower and the anode loop at a controlled pressure. In further embodiments, the temperatures of the fuel cell and hydrogen generator are independently controlled.

A controller for a fuel cell based power generator includes a memory and a processor configured to execute executable instructions stored in the memory to receive a pressure in an anode loop of the fuel cell based power generator, wherein the anode loop includes a hydrogen generator and an anode loop blower, and control the anode loop blower such that the hydrogen generator provides hydrogen to an anode of a fuel cell via the blower and the anode loop at a controlled pressure. In further embodiments, the temperatures of the fuel cell and hydrogen generator are independently controlled.

A power generator includes a hydrogen producing fuel and a hydrogen storage element. A fuel cell having a proton exchange membrane separates the hydrogen producing fuel from ambient. A valve is positioned between the hydrogen storage element and the hydrogen producing fuel and the fuel cell. Hydrogen is provided to the fuel cell from the hydrogen storage element if demand for electricity exceeds the hydrogen producing capacity of the hydrogen producing fuel.

A power generator includes a hydrogen producing fuel and a hydrogen storage element. A fuel cell having a proton exchange membrane separates the hydrogen producing fuel from ambient. A valve is positioned between the hydrogen storage element and the hydrogen producing fuel and the fuel cell. Hydrogen is provided to the fuel cell from the hydrogen storage element if demand for electricity exceeds the hydrogen producing capacity of the hydrogen producing fuel.

Various embodiments disclosed related to hydrogen-generating compositions for a fuel cell. In various embodiments, the present invention provides a hydrogen-generating composition comprising a hydride and a Lewis acid. Various embodiments provide methods of using a hydrogen fuel cell including generating hydrogen gas using the composition, fuel cell systems including the composition, and methods of making the composition.

The fuel cell includes a power generation unit, a plurality of storage containers that are detachable and house hydrogen absorbing alloy, a heat medium passage through which a heat medium flows, and a temperature control unit for heating the storage containers by controlling the temperature of the heat medium and causing the heat medium to flow. The temperature control unit can carry out a first temperature control mode of controlling the temperature of the heat medium to be equal to or higher than a first temperature, and a second temperature control mode of controlling the temperature of the heat medium to be equal to or higher than a second temperature. The temperature control unit determines whether the second temperature mode is to be carried out or not based on the pressure or the temperature of an attached storage container when a new storage container is attached.

The fuel cell includes a power generation unit, a plurality of storage containers that are detachable and house hydrogen absorbing alloy, a heat medium passage through which a heat medium flows, and a temperature control unit for heating the storage containers by controlling the temperature of the heat medium and causing the heat medium to flow. The temperature control unit can carry out a first temperature control mode of controlling the temperature of the heat medium to be equal to or higher than a first temperature, and a second temperature control mode of controlling the temperature of the heat medium to be equal to or higher than a second temperature. The temperature control unit determines whether the second temperature mode is to be carried out or not based on the pressure or the temperature of an attached storage container when a new storage container is attached.

In aspects of the disclosure, a fuel cartridge wherein the fuel is in a powdered form is admixed with inert materials such as alumina or other ceramics to improve thermal conductivity. Said cartridge having fuel zones, heating zones, and controllers to selectively heat fuel zones and thereby generate hydrogen via decomposition of fuel is disclosed.