MODIFIED ELECTROCHEMICAL HYDROGEN STORAGE ALLOY HAVING INCREASED CAPACITY, RATE CAPABILITY AND CATALYTIC ACTIVITY

摘要

A modified Ti-V-Zr-Ni-Mn-Cr electrochemical hydrogen storage alloy which has at least one of the following characteristics: 1) an increased charge/discharge rate capability over that the base Ti-V-Zr-Ni-Mn-Cr electrochemical hydrogen storage alloy; 2) a formation cycling requirement which is reduced to one tenth that of the base Ti-V-Zr-Ni-Mn-Cr electrochemical hydrogen storage alloy; 3) no chemical/thermal activation of the modified alloy is required to attain full operating capacity as is required by the base Ti-V-Zr-Ni-Mn-Cr electrochemical hydrogen storage alloy : and 4) an oxide surface layer having a higher electrochemical hydrogen stora ge catalytic activity than the base Ti-V-Zr-Ni-Mn-Cr electrochemical hydrogen storage alloy.