Patent ID: 7083874

Claim:
A fuel cell power generation system, comprising a hydrogen reservoir that occludes non-used hydrogen discharged from a fuel cell, and releases the same, wherein said hydrogen reservoir has a first storage section comprising a first hydrogen occlusion material, and a second storage section comprising a second hydrogen occlusion material, said first storage section being adapted to occlude said non-used hydrogen from said fuel cell and to release the occluded hydrogen, and said second storage section being adapted to occlude hydrogen released from said first storage section and then to release and supply the occluded hydrogen to said fuel cell, wherein the first hydrogen occlusion material is of a low pressure occlusion and high temperature release type and the second hydrogen occlusion material is of a high pressure occlusion and low temperature release type, wherein the first hydrogen occlusion material is a LaNi 3.96 Co 0.6 Al 0.44 alloy and the second hydrogen occlusion material is a MmNi 4.04 Co 0.6 Mn 0.31 AL 0.05 alloy (Mm is mish metal).