The results can be concluded as follows:(1) The as-cast CeMgnNi alloy has a very low discharge capacity of 23.8mAh/g, and no significant improvement in discharge performance is obtained even after ball-milling for 100h without addition of Ni powder.

• 研究结果表明:(1) 铸态CeMg_(11)Ni合金的放电容量很低；只有23.；8mAh/g；球磨100小时后放电仍没有明显提高。