Surface modification of AB(2) and AB(5) hydrogen storage alloy electrodes by the hot-charging treatment

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	Surface modification of AB(2) and AB(5) hydrogen storage alloy electrodes by the hot-charging treatment
	Yu, B ; Chen, L ; Wen, MF ; Tong, M ; Chen, DM ; Tian, YW ; Zhai, YC
通讯作者	Chen, L()
	2001-03-01
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	17 期号:2 页码:247-251
摘要	The effect of the hot-charging treatment on the performance of AB(2) and AB(5) hydrogen storage alloy electrodes was investigated. The result showed that the treatment can markedly improve the voltage plateau ratio (VPR), the high rate discharge ability (HRDA), the diffusion coefficient of hydrogen DH and the discharge capacity of the AB2 hydrogen storage alloy electrode. The SEM analysis showed that the hot-charging treatment brings about a Ni-rich surface due to the dissolution of Zr oxides. It is also very helpful for the improvement of the kinetic properties of AB2 hydrogen storage alloy electrode because the microcracking of the surface results in fresh surface. This can be the basic modification treatment for NiMH battery used in electric vehicles (EVs) in the future. But for AB(5) type alloys, the treatment has the disadvantage of impairing the comprehensive electrochemical properties, because the surface of the alloy may be corroded during the treatment. The mechanism of the surface modification of the electrode is also proposed.
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000167720500013
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/112165
专题	中国科学院金属研究所
通讯作者	Chen, L
作者单位	1.Chinese Acad Sci, Mat Res Inst, Shenyang 110015, Peoples R China 2.Northeastern Univ, Shenyang 110006, Peoples R China
推荐引用方式 GB/T 7714	Yu, B,Chen, L,Wen, MF,et al. Surface modification of AB(2) and AB(5) hydrogen storage alloy electrodes by the hot-charging treatment[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2001,17(2):247-251.
APA	Yu, B.,Chen, L.,Wen, MF.,Tong, M.,Chen, DM.,...&Zhai, YC.(2001).Surface modification of AB(2) and AB(5) hydrogen storage alloy electrodes by the hot-charging treatment.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,17(2),247-251.
MLA	Yu, B,et al."Surface modification of AB(2) and AB(5) hydrogen storage alloy electrodes by the hot-charging treatment".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 17.2(2001):247-251.