TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Temperature : The alloy has a temperature for hydrogen absorption (T1) lying between the lowest temperature available for human life on earth and 373 degreesK (absolute temperature unit ).Preferred Alloy : The alloy for hydrogen storage contains 0 - 95 atomic % of at least one element selected from Nb, Ta, W, Mo, Ti, Cr, Mn, Fe, Al, B, Co, Cu, Ge, Ni and Si. One of the typical alloys is represented by the formulae.Va Ti41-0.4a+bCr59-0.6a-b( 0 at least a at most 70 at% , -10 at least b at most 10 )V(a-d)M2d Ti41-0.4a+bCr59-0.6a-bMc( 0 at least a at most 70 at% , -10 at least b at most 10, 0 at least c, 0 at least d at most a)M = at least one element selected from Nb, Ta, W, Mo, Mn, Fe, Al, B, Co, Cu, Ge, Ni, C, Si, Ln, N and P ;M2 = at least one element selected from Mo, Nb, Ta, W, Mn, Fe and Al.The alloy comprises a single phase of a body-centered structure having no spinodal decomposition phase, or of a body-centered structure having a minimum spinodal decomposition phase which does not disturb the body-centered structure.Preferred Method : The method for absorption or release of hydrogen comprises using the invented alloy for hydrogen storage.Preferred Hydrogen Fuel Cell : The hydrogen fuel cell comprises a hydrogen storage tank containing the alloy for storage of hydrogen, a temp adjusting means, a fuel cell which generates electricity by chemical reaction of hydrogen, in which the temp is regulated and controlled to maintain the conditions, T2 lower than T1. In the fuel cell the pressure, the temp and the flow capacity of hydrogen supplied to the fuel are controlled, and the heat contained in the exhaust gas from the fuel cell is reused for heating the supply gas. SPECIFIC MATERIALS - The alloy is Nb, Ta, W, Mo, Ti, Cr, Mn, Fe, Al, B, Co, Cu, Ge, Ni and Si.    EXAMPLE - A V70 Zr0.5 Ti11.5 Cr18 alloy was found to be suitable as the alloy for hydrogen storage. The alloy adsorbed more hydrogen when the temperature for absorption became lower, and released more hydrogen when the release temp became higher. These characteristics provided the efficient storage of hydrogen for hydrogen fuel cells and increased the amount of energy generated.