229 results about "Lithium hydride" patented technology

A lithium battery comprises a negative electrode composition that uses lithium hydride and a second metal. The negative electrode composition is activated by infusing lithium into particles of the second metal hydride to form lithium hydride and the second metal. As the battery is discharged lithium is released from the electrode and the second metal hydride formed. Charging of the battery re-infuses lithium into the negative electrode composition with the re-formation of lithium hydride.

A method for the anodic electrochemical synthesis of ammonia gas. The method comprises providing an electrolyte between an anode and a cathode, providing nitrogen and hydrogen gases to the cathode, oxidizing negatively charged nitrogen-containing species and negatively charged hydrogen-containing species present in the electrolyte at the anode to form adsorbed nitrogen species and adsorbed hydrogen species, respectively, and reacting the adsorbed nitrogen species with the adsorbed hydrogen species to form ammonia. Nitrogen and hydrogen gases may be provided through a porous cathode substrate. The negatively charged nitrogen-containing species in the electrolyte may be produced by reducing nitrogen gas at the cathode and / or by supplying a nitrogen-containing salt, such as lithium nitride, into the molten salt electrolyte. Similarly, the negatively charged hydrogen-containing species in the electrolyte may be produced by reducing hydrogen gas at the cathode and / or by supplying a hydrogen-containing salt, such as lithium hydride, into the molten salt electrolyte.

The invention discloses a nuclear reactor for the lunar surface. The nuclear reactor comprises a reactor body, thermocouple converters, potassium thermotube radiators, a lithium hydride shield, and control drum driving mechanisms, the reactor is formed by three same integrated modules, each of the modules is 1 / 3 of the reactor, each of the modules comprises 1 / 3 of the reactor body, two thermocouple converters, two potassium thermaltube radiators, and 1 / 3 of the lithium hydride shield, the lithium hydride shield is arranged above the reactor body, and the control drum driving mechanism is arranged above the lithium hydride shield; the reactor body is composed of a reflecting layer, fuel elements, lithium thermotubes and control drums; the control drums are uniformly arranged in the reflecting layer and can rotate under the driving the control drum driving mechanisms; and the lithium thermotubes are leaded out of the inside of the reactor body and then are connected with the thermocouple converters, and the thermocouple converters are provided with the potassium thermotube radiators. The nuclear reactor for the lunar surface provided by the invention has the advantages of high safety, convenient transportation and convenient emission.

A solar thermal powered aircraft powered by heat energy from the sun. A Rankine-Brayton hybrid cycle heat engine is carried by the aircraft body for producing power for a propulsion mechanism, such as a propeller or other mechanism for enabling sustained free flight. The Rankine-Brayton engine has a thermal battery, preferably containing a lithium-hydride and lithium mixture, operably connected to it so that heat is supplied from the thermal battery to a working fluid. A solar concentrator, such as reflective parabolic trough, is movably connected to an optically transparent section of the aircraft body for receiving and concentrating solar energy from within the aircraft. Concentrated solar energy is collected by a heat collection and transport conduit, and heat transported to the thermal battery. A solar tracker includes a heliostat for determining optimal alignment with the sun, and a drive motor actuating the solar concentrator into optimal alignment with the sun based on a determination by the heliostat.