| 摘要 |
An electrochemical hydrogen storage material comprising : (Base Alloy)aMb where Base Alloy is an alloy of Mg and Ni in a ratio of from about 1:2 to 2:1, preferably about 1:1; M represents at least one modifier element chosen from the group consisting of Co, Mg, Al, Fe, Cu, Mo, W, Cr, V, Ti, Zr, Sn, Th, Si, Zn, Li, Cd, Na, Pb, La, Mm and Ca: b is greater than 0.5, preferably 2.5, atomic percent; a + b = 100 atomic percent. Preferably, the at least one modifier is chosen from the group consisting of Co, Mn, Al, Fe and Cu and the total mass of the at least one modifier element is less that 25 atomic percent of the final composition. Most preferably, the total mass of said at least one modifier element is less than 20 atomic percent of the final composition. Hydrogen storage alloys of the above composition have an energy density of 600 mA/g and more. |
