Structure and electrochemical performance of hydrogen storage alloy La0.7Mg0.3Ni2.875Co0.525Mn0.1-boron composite

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摘要 ThestructureandelectrochemicalcharacteristicsofLa0.7Mg0.3Ni2.875Co0.525Mn0.1-boroncompositewasstudiedsystematically.TheAB3typehydrogenstoragealloysLa0.7Mg0.3Ni2.875Co0.525Mn0.1weresuccessfullysynthesizedbymeansofinter-mediaalloyLa2Mg17.Thealloyswerecompositedwithboronatdifferentweightrate.FromtheXRDanalyses,eachalloyofthisseriesismainlycomposedof(La,Mg)Ni3phaseandtheLaNi5phase,andthephaseabundanceofeachphasevarieswiththeboronweightrate,moreover,aftercomposition,thecandcellvolumesof(La,Mg)Ni3phaseincrease,andtheLaNi5phasekeepthesame,whichindicatethattheboronmayenter(La,Mg)Ni3phase.Theelectrochemicalstudiesshowthatthemaximumdischargecapacityofthecompositesdecreases,butthecyclinglifeimproved.Andthehighratedischargeabilityandexchangeimpendencespectroscopy(EIS)oftheAB3alloysanditscompositewerealsostudied.
机构地区 不详
出处 《稀有金属:英文版》 2006年z1期
出版日期 2006年06月10日(中国期刊网平台首次上网日期,不代表论文的发表时间)
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