纳米氢氧化镍材料的研制

Development of nano-nickel hydroxide

氢氧化镍是碱性蓄电池的正极活性物质 ,对利用高能球磨制备纳米Ni(OH) 2 粉末进行了探讨。制备出了纳米氢氧化镍电极材料 ,粒径约 80nm ,晶粒尺寸约 7nm ,当以质量分数为 2 5 %比例与普通球型Ni(OH) 2 混合作用时 ,可使其电极容量从 2 6 0mAh/g提高到 2 90mAh/g。该方法工艺简单 ,具有适合工业生产的实际意义。

Ni(OH) 2 was a cathode material of alkaline battery Nano Ni(OH) 2 material was prepared by high energy mechanical grinding,the powder diameter was about 80nm,the crystical scale was about 7nm When it was mixed with the conventional Ni(OH) 2 in 25%,the electrochemical capacity of the electrode could be increased from 260mAh/g to 290mAh/g