贮氢合金进展

Development and Application of Hydrogen Storage Alloys

对贮氢合金的工作原理及应用 ,贮氢合金的基本类型及开发历史和发展趋势进行了综合评述。MmNi5系稀土合金和Laves相合金的开发应用已较为成熟 ,但其贮氢密度不高。高容量型的钒固溶体型合金和镁基合金是贮氢合金发展的新趋势。目前主要通过添加合金元素 ,开发制备工艺 ,改进微观相组织结构并兼以适当的表面处理 ,以提高钒固溶体型合金和镁基合金常温常压下的吸放氢特性及活化性能。

The function theory, properties, development and application of hydrogen storage alloys are reviewed.MmNi 5 based alloys and Laves phase alloys were well developed and commercially used. But they still had the limit of low capacity. It was attractive to develop high capacity vanadium based solid solution alloys and magnesium based alloys. By adding alloying elements, using effective producing method and surface treatment, the hydrogen absorption desorption properties, high rate capability and activation process of these alloys were remarkably improved.