| 新型低钴AB5型贮氢合金 |
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| 引用本文： | 李克杰,李全安,李守英,张清,张兴渊,文九巴.新型低钴AB5型贮氢合金[J].有色金属,2007,59(3):9-11,16. |
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| 作者姓名： | 李克杰 李全安 李守英 张清 张兴渊 文九巴 |
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| 作者单位： | 河南科技大学,材料科学与工程学院,河南洛阳,471003 |
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| 基金项目： | 河南省杰出青年科学基金;河南省高校创新人才培养项目 |
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| 摘 要： | 在贮氧合金MLNi3.55Co0.75Al0.3Mn0.4的基础上,采用Cu,Fe,Zn,Cr替代Co和加入稀土Dy的方法制备低钴AB5型贮氢合金,得到稀土基多元贮氢合金.并对其放电容量、循环稳定性以及微观结构进行了测试和分析.结果表明,采用适量的Cu,Fe,Zn,Cr替代Co所得的高容量低钴贮氧合金具有较好的循环稳定性,添加Dy不仅使合金具有较高的放电容量,而且明显改善低钴贮氢合金的组织均匀性和充放电循环稳定性.
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| 关 键 词： | 金属材料 贮氢合金 电化学性能 |
| 文章编号： | 1001-0211（2007）03-0009-04 |
| 收稿时间： | 2005-11-07 |
| 修稿时间： | 2005-11-07 |
A Novel AB5-type Hydrogen Storage Alloy with Low Co Content |
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| LI Ke-jie,LI Quan-an,LI Shou-ying,ZHANG Qing,ZHANG Xing-yuan,WEN Jiu-ba.A Novel AB5-type Hydrogen Storage Alloy with Low Co Content[J].Nonferrous Metals,2007,59(3):9-11,16. |
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| Authors: | LI Ke-jie LI Quan-an LI Shou-ying ZHANG Qing ZHANG Xing-yuan WEN Jiu-ba |
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| Abstract: | The AB5-type hydrogen storage alloy with low Co content is prepared by substitution of Cu, Cr, Zn and Fe for part Co on the B-side and addition of Dy on the A-side based on the standard alloy MLNi3.55Co0.75Al0.3Mn0.4. The discharge capacity, cycle stability and microstructure of the alloy are tested and analyzed. The results show that low-Co hydrogen storage alloy with high discharge capacity and good cycle stability can be obtained by multi-alloying with Cu, Fe, Zn, Cr for replacement of Co. The better cycling stability, more homogeneous composition and good discharge capacity of the alloy are achieved by addition of Dy. |
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| Keywords: | Dy |
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