Effect of surface treatment on the structure and high-rate dischargeability properties of AB5-type hydrogen storage alloy
来源期刊：Journal of Rare Earths2009年第3期
论文作者：张沛龙 王秀丽 涂江平 陈国良
文章页码：510 - 513
摘 要：Surface-treated MmNi3.55Co0.75Mn0.4Al0.3 alloy as negative electrode material of nickel-metal hydride battery was employed to improve the high-rate dischargeability. Surface treatment was realized by dipping and stirring the alloy into a HCl aqueous solution with various concentrations at room temperature. The microstructure of the alloy before and after surface treatment was analyzed by X-ray diffraction（XRD） and scanning electron microscopy（SEM） . The electrochemical properties before and after surface treatment were compared,and the alloy treated in 0.025 mol/L HCl solution showed the optimal high-rate dischargeability.
张沛龙1,2，王秀丽3，涂江平3，陈国良1
1. State Key Laboratory for Advanced Metals and Materials,University of Science and Technology Beijing2. Hold Fortune(Beijing) Industry Co.,Ltd.3. Department of Materials Science and Engineering,Zhejiang University
摘 要：Surface-treated MmNi3.55Co0.75Mn0.4Al0.3 alloy as negative electrode material of nickel-metal hydride battery was employed to improve the high-rate dischargeability. Surface treatment was realized by dipping and stirring the alloy into a HCl aqueous solution with various concentrations at room temperature. The microstructure of the alloy before and after surface treatment was analyzed by X-ray diffraction（XRD） and scanning electron microscopy（SEM） . The electrochemical properties before and after surface treatment were compared,and the alloy treated in 0.025 mol/L HCl solution showed the optimal high-rate dischargeability.
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