Patent ID: 6083327
Filing Date: 2000-07-04
Classification: C01B,H01M,Y02E,Y10S

Abstract:
A Ni based hydrogen occluding alloy having the composition, comprising:by weight:(i) 32-38% of at least one of La or Ce,(ii) 0.1-17% Co,(iii) 0.1-3.5% Al,(iv) 0.5-10% Mn,(v) 0.005-0.1% of hydrogen, withthe balance being Ni and unavoidable impurities, wherein said alloy has a microstructure of a phase having a Ce.sub.2 Ni.sub.7 crystal structure and rare earth element hydride dispersed in a matrix having a CaCu.sub.5 crystal structure and, wherein the amount of said phase having a Ce.sub.2 Ni.sub.7 crystal structure is 1-40% by area and the amount of said rare earth element hydride is 0.5-20% by area.