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Structure and Properties of the La0.92 Mg2.08 Ni9 Alloy Prepared by ball milling
Author(s): 
Pages: 28-31
Year: Issue:  1
Journal: ELECTRICAL ENGINEERING MATERIALS

Keyword:  球磨电极材料非晶结构性能;
Abstract: 用差热分析仪、X射线衍射仪、扫描电子显微镜及电池综合性能测试仪研究了球磨 La0.92 Mg2.08 Ni9样品的组织结构、形貌、热稳定性及贮氢性能等.结果表明:经 400r/min球磨35~50h后,La0.92Mg2.08Ni9样品由非晶组成,颗粒形状为球形或近球形,颗粒尺寸为0.2~5μm.随着球磨时间的延长,非晶样品的热稳定性能增加 ,颗粒尺寸减小,电化学活化性能降低.经400r/min球磨 35h的样品具有较好的室温贮氢性能,首次电化学充放电即达到最大的放电容量 405mAh.g-1.
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