HYDROGEN STORAGE ALLOY POWDER

摘要

PROBLEM TO BE SOLVED: To provide hydrogen storage alloy powder with superb electrochemical characteristics used as a material for a negative electrode of a Ni-hydrogen secondary battery. SOLUTION: Hydrogen storage alloy powder, manufactured by being gas- atomized with atomized gas consisting of residual inactive gas containing nitrogen gas of 91 vol.%, is of average specific surface of not less than 0.040 m<2> /g classified into less than 38μm and not less than 25μm in atomization state.