| AB_5型储氢合金低温氢扩散行为研究 |
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| 引用本文： | 王培培.AB_5型储氢合金低温氢扩散行为研究[J].电工材料,2010(2):32-35. |
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| 作者姓名： | 王培培 |
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| 作者单位： | 桂林电子科技大学,材料科学与工程学院,广西桂林,541004 |
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| 基金项目： | 国家自然科学基金，国家自然科学基金，广西新世纪十百千人才工程专项基金 |
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| 摘 要： | 用恒电位阶跃法研究了低温下AB5型储氢合金中的氢扩散行为。研究表明,低温下放电深度为50%的AB5储氢合金中,氢扩散系数受阶跃幅值的影响不大,且随着温度的降低而减小,其数量级约为10-8,这是AB5储氢合金低温高倍率放电性能差的原因之一。
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| 关 键 词： | 储氢合金 氢扩散系数 恒电位阶跃法 低温 |
Study on the Hydrogen Diffusion Behavior of AB5-based Alloy at Low Temperature |
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| WANG Pei-pei.Study on the Hydrogen Diffusion Behavior of AB5-based Alloy at Low Temperature[J].Electrical Engineering Materials,2010(2):32-35. |
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| Authors: | WANG Pei-pei |
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| Affiliation: | WANG Pei-pei(School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, China) |
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| Abstract: | The hydrogen diffusion behavior of AB5-based alloy at low temperature is studied by constant potential step technique. The results show that the step amplitude had little effect on the hydrogen diffusion coefficient in AB5-based hydrogen storage alloy which the depth of discharge is 50% . The step amplitude was decreased with the temperature decreases. Moreover, the order of magnitude of the hydrogen diffusion coefficient was about at 10^-8. This is also one of the reasons why the hydrogen storage alloy has a poor performance of the high-rate discharge at lower temperature. |
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| Keywords: | hydrogen storage alloy hydrogen diffusion coefficient constant potential step technique low temperature |
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