Metal hydrides for vehicular applications: The state of the art

Recent developments in light metal complex hydrides show that there is a potential for hydrogen storage using these hydrides in fuel cells for on-board vehicular and other applications. The search for new alloys promises to have practical significance with the realization that hydrogen as a fuel holds the key to filling energy needs and solving environmental problems. This review presents the U.S. Department of Energy FreedomCAR goals for hydrogen storage, storage capacities of important hydrides, and current developments in light-metal complex hydrides.