摘要
镁基储氢合金是一种很有发展前景的储氢合金材料,但在碱性电解液中极易腐蚀,循环性能较差,这限制了它的实际应用。因此,采用不同方法对其循环寿命进行改善成为近年来的一个研究热点。分析了镁基储氢合金循环寿命衰退的原因,针对目前改善其循环性能的主要方法如添加合金元素、控制粒径大小、进行退火处理、制成复合材料、进行表面包覆、控制电荷输入和使用缓蚀剂等进行综述和分析,并强调在研究其循环寿命的同时应将放电容量、吸放氢动力学等因素进行综合考虑,最后指出了今后研究镁基储氢合金循环寿命的重点。
Magnesium-based hydrogen storage alloy is a very promising hydrogen storage material. It easily corrodes in the alkaliane liquid and therefore its cycle performance is even worse, which limits its practical application in hydride battery. Consequently,making use of different methods to improve its cycle life becomes a research focus in recent years. In this paper, the causes of its decay of the cycle life of Mg-based hydrogen storage alloys are analyzed and the methods as alloy addition, controling particle size, annealing, making composites, coating, controlling the input charge and using corrosion inhibitor to improve its cycle performance are reviewed. It is emphasized that comprehensive consideration of the discharge capability and kinetic behavior should be done in researching the cycle life. The research direction in future for magnesium-based hydrogen storage alloys is pointed out in the end.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2008年第11期102-105,共4页
Materials Reports
基金
重庆市科委自然科学基金计划(CSTS2006BB4199)
重庆市重大科技计划(CSTC2006AA4012)
关键词
镁基储氢合金
循环寿命
腐蚀
改善方法
magnesium-based hydrogen storage alloys
cycle life
corrode
improving method
作者简介
王敬丰：男，1971年生，博士，副教授，主要从事镁合金强韧化、阻尼镁合金和镁基非晶合金的研究开发 Tel：023-65112153 E-mail：jfwang@cqu．edu．cn
