TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Process: The single molecular layer type transition metal dichalcogenide particles are exfoliated by intercalation of the dichalcogenide with an alkali metal and immersion in water. The recovered precipitate which is comprised of the new metal hydride alloy is heated for a time, and in an atmosphere to provide a metal hydride alloy essentially free of organic material. Steps (b), (c), (d) and (e) in (A) are repeated. The method in (B) that the dispersion is (f) further heated at a temperature and for a time to boil the protic solvent and provide a dispersion essentially free of protic solvent but insufficient to boil the aprotic solvent. The method in (B) that a material is added to the dispersion in a manner and in a quantity to precipitate the protic solvent in the dispersion.Preferred Compounds: The aprotic solvent which is miscible is an organic solvent that may dissolve soluble metal hydride. The organic solvent is N,N-dimethylformamide, tetrahydrofuran, toluene, and ethereal solvents. WIDER DISCLOSURE - A sample of polysulfone crystals was dissolved in N,N-dimethylformamide. The resulting clear liquid, which had the consistency of milk, was slowly added to a neutral suspension of exfoliated MoS2 in water. The polysulfone reacted with water in the suspension forming a white polymer, which settled to the bottom of the sample container. The process was continued until no reaction was seen to occur. The homogeneous dispersions of exfoliated transition metal dichalcogenide in aprotic solvent which are produced by the above methods may be used to create new metal hydride alloys which have exhibited superior performance in electrochemical cells.    SPECIFIC COMPOUNDS - The organic-solvent metal hydride is magnesium hydrides, aluminum hydrides and calcium hydrides. The single molecular layer transition metal dichalcogenide is exfoliated molybdenum disulfide, and exfoliated tungsten disulfide.    EXAMPLE - A fully hydrided, organic-solvent soluble magnesium hydride, dissolved in solution, with a combined weight of 8.90 g was prepared by known methods. The material produced had a uniform deep red color. To this solution, a sample of exfoliated MoS2 homogeneously dispersed in N,N-dimethylformamide and containing 0.18 g of MoS2 in suspension, was added. The mixture was shaken vigorously and rapidly separated into two layers. A yellow translucent liquid layer formed on the top, and a black solid, with a crystal-like appearance, formed on the bottom. The liquid contained a small quantity of excess exfoliated MoS2. This liquid layer was removed by decanting and the remaining solid of the form MX2Y weighing 6.18 g was recovered.