储氢合金电极失效的机理分析及研究进展  

Analysis and the Latest Research of Basic Mechanics on Efficacy Loss of Hydrogen Storage Alloy Electrode

作　　者：董小平[1] 杨丽颖[1] 朱凯宁[1] 王涛[1] 钟旸[1] 

机构地区：[1]河北大学质量技术监督学院,河北保定071002

出　　处：《稀有金属与硬质合金》2011年第4期25-30,共6页Rare Metals and Cemented Carbides

基　　金：国家863计划项目(2007AA03Z227;2007AA03Z230);河北省自然科学基金(E2010000301);河北大学自然科学研究计划项目(2009-152;2009-153);河北大学大学生科技创新项目(2011071;2011073)

摘　　要：分析了储氢合金电极失效的四种基本理论,即合金颗粒粉化、元素氧化、吸氢非晶化与释氢晶化、电化学腐蚀机制,并综述其研究进展,提出延缓合金电极容量衰减,改善其循环性能的有效控制途径。Analysis is made of the basic mechanics about efficacy loss of the electrode, such as pulverization of alloy particle, oxidation of element, amorphous after hydrogen absorption and crystalline after hydrogen desorption,and electrochemical corrosion. The latest research is reviewed. The way how to restrain or lower capacity degradation of electrode and improve cyclic property of hydrogen storage alloy electrode is introduced.

关 键 词：储氢合金 电极失效 容量衰减 循环性能 

分 类 号：TG139.7[一般工业技术—材料科学与工程]