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铸态低钴贮氢合金RE（NiCoMnAlCu）_5.1的电化学性能

Electrochemical Performances of as-cast RE（NiCoAlMnCu）_5.1 Hydrogen Storage Electrode Alloys

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【Author】 Lin Yufang 1,Zhang Yanghuan 1,2 ,Li Rong 1,Wang Xinlin 1 (1. Departement of Functional Material,Central Iron & Steel Research Institute,Bejing 100081 2.Department of Material Science & Engineering,Baotou Iron & Steel University of Technology,Baotou 014010)

【机构】钢铁研究总院功能材料所；钢铁研究总院功能材料所北京100081；北京100081包头钢铁学院材冶系包头014010；北京100081；北京100081；

【摘要】研究了一系列低钴贮氢合金RE(NiCoAlMnCu) 5 1合金的电化学性能。实验发现 ,稀土中La和Ce含量的变化对合金的放电容量和循环稳定性均有影响 ,一般是La含量较高的合金最大放电容量也较大 ,而Ce含量较高的合金循环稳定性较好 ,活化性和 1C放电性能却相差不大。实验结果表明 ,通过调节混合稀土成分可以使得RE(NiCoMnAlCu) 5 1稀土贮氢合金具有良好的综合电化学性能。更多还原

【Abstract】 The electrochemical performance of the RE(NiCoAlMnCu) 5 1 hydrogen storage alloys have been investigated It was been found that the content of La and Ce would produce effect on the discharge capacity and cycling stability of the alloys obviously Generally,the higher content of La,the higher discharge capacity and the higher content of Ce,the better cycling stability The results show that the RE(NiCoAlMnCu) 5 1 alloy with better combination properties can be obtained by adjusting the composition of mishmetal更多还原