The invention is directed to a method of preparing NH.sub.3, and to a method of regenerating a metal M from MOR.sup.1, wherein O is oxygen and R.sup.1 is CH.sub.3 and/or C.sub.2H.sub.5.

The method for preparing NH.sub.3 comprises the steps of a) reacting a metal with nitrogen gas to produce a metal nitride, wherein the metal is selected from the group consisting of Li, Be, Mg, Na, Mo, Al, Zn, Ca, Sr, and Ba, b) reacting the metal nitride obtained in step a) with R.sup.1OH to produce NH.sub.3 and MOR.sup.1, wherein R.sup.1 represents CH.sub.3 and/or C.sub.2H.sub.5, and c) regenerating the metal by electrolysing said MOR.sup.1 under formation of HCHO and/or CH.sub.3CHO.

The method of regenerating a metal M from MOR.sup.1, comprises electrolysing of MOR.sup.1 under formation of HCHO and/or CH.sub.3CHO, wherein R.sup.1 represents CH.sub.3 and/or C.sub.2H.sub.5.

A method of manufacturing lithium-metal nitride including suspending a lithium-metal-oxide-powder (LMOP) within a gaseous mixture, incrementally heating the suspended LMOP to a holding temperature of between 400 and 800 degrees Celsius such that the LMOP reaches the holding temperature, and maintaining the LMOP at the holding temperature for a time period in order for the gaseous mixture and the LMOP to react to form a lithium-metal nitride powder (LMNP).

Methods for pre-lithiating an electroactive material including a Group III element, Group IV element, a Group V element, or a combination thereof for an electrode for an electrochemical cell are provided as well as electrodes including the pre-lithiated electroactive material. The methods include reacting a lithiating agent including LiH or Li.sub.3N with the electroactive material to form a pre-lithiated electroactive material.

The present disclosure relates to power plants. The teachings thereof may be embodied in processes for producing ammonia and energy, e.g., a method for producing ammonia and energy comprising: spraying or atomizing an electropositive metal; burning the metal with a reaction gas; mixing the reacted mixture with water; separating the mixture into (a) solid and liquid constituents and (b) gaseous constituents; at least partially converting energy of the solid and liquid constituents and of the gaseous constituents; and separating ammonia from the gaseous constituents. Mixing the reacted mixture may include spraying or atomizing the water or the aqueous solution or the suspension of the hydroxide of the electropositive metal into the reacted mixture.

A novel chemical cycle for producing and capturing ammonia using nitrogen and hydrogen sulfide containing feedstocks is presented. An example of this cycle may start with the reaction between lithium nitride and hydrogen sulfide containing materials to form both lithium sulfide containing material and ammonia, where the produced ammonia is separated and captured. Metallic lithium may then be extracted high temperatures from said lithium sulfide containing material and then may or may not be separated from the said lithium sulfide containing material and other byproducts. The said extracted metallic lithium containing material may then be reacted with nitrogen containing feedstock to form lithium nitride containing material to complete the cycle.

The invention relates to particulate lithium metal formations having a substantially spherical geometry and a core composed of metallic lithium, which are enclosed with an outer passivating but ionically conductive layer containing nitrogen. The invention further relates to a method for producing lithium metal formations by reacting lithium metal with one or more passivating agent(s) containing nitrogen, selected from the groups N.sub.2, N.sub.xH.sub.y with x=1 or 2 and y=3 or 4, or a compound containing only the elements C, H, and N, and optionally Li, at temperatures in the range between 60 and 300 C., preferably between 100 and 280 C., and particularly preferably above the melting temperature of lithium of 180.5 C., in an inert organic solvent under dispersion conditions or in an atmosphere that contains a gaseous coating agent containing nitrogen.

A material is utilized with an electropositive metal. This can be used as post-oxyfuel process for oxyfuel power stations. Here, an energy circuit is realized by the material utilization. An electropositive metal, in particular lithium, serves as energy store and as central reaction product for the conversion of nitrogen and carbon dioxide into ammonia and methanol. The power station thus operates without CO.sub.2 emissions.

The present disclosure relates to reactions with an electropositive metal. Specific embodiments may include reactions of electropositive metals with a liquid, undergoing at least partial reaction in the liquid, e.g., a method comprising: atomizing or jetting the electropositive metal; introducing the electropositive metal into the liquid below a surface of the liquid; and producing at least partial reaction of the electropositive metal in the liquid.

A core-shell cathode lithium-supplementing additive, a preparation method therefor, and an application thereof. The core-shell cathode lithium-supplementing additive of the present application comprises a core body and a coating layer covering the core body, the coating layer being an isolating conductive packaging layer, the core body containing a lithium-supplementing material, and the lithium-supplementing material comprising Li.sub.2+cA.sub.cB.sub.1c and/or Li.sub.aX.sub.b, wherein 0c1, A is at least one of N and P, B is at least one of S and O, 1a3, 1b3, and X is any one selected from F, S, N, B, P, O, and Se. The lithium-supplementing material contained in the core-shell cathode lithium-supplementing additive of the present application is rich in lithium, thereby increasing the Coulombic efficiency and improving the overall electrochemical performance of a battery.

A method is provided for separating offgas from solid and/or liquid reaction products in the combustion of a metal M selected from alkali metals, alkaline earth metals, Al and Zn, and mixtures thereof, with a combustion gas. In a reaction step, the combustion gas is combusted with the metal M, forming offgas and further solid and/or liquid reaction products, and, in a separation step, the offgas is separated from the solid and/or liquid reaction products. In the separation step, a carrier gas is additionally added and the carrier gas is removed as a mixture with the offgas.