Abstract: The amorphous Ml-Ni films were prepared by means of ion beam sputtering the electrochemical hydrogen storage,discharge ability and durability of amorphous film electrodes are investigated,The results show that the maximum capacities of the amorphous MlNi_(1.79),MlNi_(2.52),and MlNi_(3.44) samples are 90,100 and 142 mAh/g,respectively,and the MlNi_(3.44) amorphous film does not off and disintegrate into fine particles a fier more than 580 cycles.

Key words: amorphous film.Ml-Ni alloy, electrochemical hydrogen absorption