| 粒度对雾化贮氢合金粉末电化学性能影响研究 |
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| 引用本文： | 侯万良,王建强,常新春,郝云彦,胡壮麒,杜文新. 粒度对雾化贮氢合金粉末电化学性能影响研究[J]. 电源技术, 2001, 25(1): 24-26 |
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| 作者姓名： | 侯万良 王建强 常新春 郝云彦 胡壮麒 杜文新 |
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| 作者单位： | 1. 中国科学院金属研究所,
2. 中辽三普电池沈阳>有限公司, |
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| 摘 要： | 采用气体雾化工艺制备了RE(NiAlCu) 5-x(x =0 .1,0 .5 )两种微晶贮氢合金粉末 ,研究了粒度对合金粉末的微观组织结构及电化学性能的影响。结果表明 :随着合金粉末粒度的减小 ,RE(NiAlCu) 4.9合金的电化学容量降低 ,活化次数增加 ;而RE(NiAlCu) 4.5合金的电化学容量及活化次数无显著变化。复相微结构的形成是导致以上合金粉末性能特性的主要因素
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| 关 键 词： | 贮氢合金粉末 粒度 电化学性能 |
| 文章编号： | 1002-087 X(2001)01-0024-03 |
| 修稿时间： | 2000-02-20 |
Study on effects of powder particle size on electrochemical property in gas-atomized hydrogen-storage alloys |
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| HOU Wan-liang,WANG Jian-qiang,CHANG Xin-chun,HAO Yun-yan,HU Zhuang-qi,DU Wen-xin. Study on effects of powder particle size on electrochemical property in gas-atomized hydrogen-storage alloys[J]. Chinese Journal of Power Sources, 2001, 25(1): 24-26 |
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| Authors: | HOU Wan-liang WANG Jian-qiang CHANG Xin-chun HAO Yun-yan HU Zhuang-qi DU Wen-xin |
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| Affiliation: | HOU Wan-liang1,WANG Jian-qiang1,CHANG Xin-chun1,HAO Yun-yan1,HU Zhuang-qi1, DU Wen-xin2 |
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| Abstract: | New kinds of free-cobalt microcrystalline hydrogen-storage alloys powders with composition of RE (NiAlCu) 5-x (x=0.1,0.5) were produced by gas-atomization processing. The effects of particle size on microstructure and electrochemical properties in the two alloys were investigated in detail. The results show it is shown that for RE (NiAlCu) 4.9 alloy with the decreasing particle size, the electrochemical capacity decreases and the number of activation increases. However, no distinct variations are obtained in the two parameters for RE (NiAlCu) 4.5 alloy. It is suggested that these properties of gas-atomized alloy are mainly ascribed to the formation of multi-phase structure of powders. |
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| Keywords: | hydrogen-storage alloy powder particle size electrochemical property |
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