REVERSIBLE HYDROGEN STORAGE COMPOSITION, METHOD OF MAKING AND USES OF SAID COMPOSITION

摘要

The invention relates to a reversible hydrogen storage composition comprising lithium hydride which desorbs hydrogen when heated in a hydrogen environment to a temperature of 470°C or more to form a hydrogenated state, and absorbs hydrogen when cooled to 420°C or less, the temperatures of absorption and desorption being independent of the pressure of the hydrogen environment. A partially processed blend of powdered lithium hydride and catalytic amounts of other elements such as Fe, B, Ni, Co or C, added as micron or sub-micron sized powders and still present in the blend as a pure phase, can provide improved hydrogen storage.