| 摘要 |
PURPOSE:To obtain a storage battery maintaining the high capacity for a long period by providing a hydrogen occlusion material making a hydrogen a hydrogen occlusion electrode hard to cause pulverization. CONSTITUTION:An alloy to be expressed by LaCo(5-x)Ax, wherein A represents Al, Mn, Cu or Cr while (x) is within the range of 0<x<=1, is used as a hydrogen occlusion material. Said hydrogen occlusion material gives slight deformation of crystalline grids while being hard to cause pulverization when occluding emitting hydrogen due to charging and discharging. And holding of hydrogen occlusion material powder is continued while suppressing a drop in mechanical strength and conductivity as well as deterioration in the battery capacity for a long period. |
