An object of the present invention is to provide a nickel-metal hydride storage battery having a long life in an electrolyte solution containing a large amount of NaOH. The nickel-metal hydride storage battery includes a negative electrode containing a hyd...

Hydridable alloy comprising metal complex (I), is claimed. Hydridable alloy comprising metal complex of formula (R 1 - x - yMg xM yNi s - aB2 a), where: at least 5 vol.% of which consists of a stack of sequences with a pattern of the A 2B1 4type and n patt...