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New surface modification of Zr-Ti hydrogen storage alloys
Wen, MF; Chen, L; Zhai, YC; Chen, J
Corresponding AuthorWen, MF()
2005
Source PublicationRARE METAL MATERIALS AND ENGINEERING
ISSN1002-185X
Volume34Issue:1Pages:28-32
AbstractThe surfaces of Zr-Ti hydrogen storage alloys are modified with methods such as chemical plating of nickel or cobalt, mechanical mixture, ball grinding and so on. XRD shows that the alloy has the trend to form micro-crystals with the content of coating nickel increasing, and long grinding time leads to dispersion of diffraction peaks of alloys. When the discharge current density is 60mA.g(-1), the initial capacity of the alloy electrode plated Ni 15wt% is 130 mAh.g(-1) more than that of untreated alloy. The alloy is activated absolutely after 6 cycles similar to8 cycles, and the max discharge capacity can reach 400 mAh.g(-1). The discharge capacity of alloy electrode with 5% Co can be up to 390 mAh.g(-1). Anti-discharge ability increases with the percentage of Ni plated. The activation behavior of hydrogen storage alloys is also improved by ball grinding, and the max discharge capacity can reach 450 mAh.g(-1). Mechanical mixture can only increase initial capacity without any improvement of max discharge capacity.
Keywordhydrogen storage alloy modification discharge capacity activation behavior
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000226733700006
PublisherNORTHWEST INST NONFERROUS METAL RESEARCH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/83254
Corresponding AuthorWen, MF
Affiliation1.Tsing Hua Univ, Inst Nucl Energy & Technol, Beijing 102201, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang 110015, Peoples R China
3.Northeastern Univ, Sch Met & Mat, Shenyang 110004, Peoples R China
Recommended Citation
GB/T 7714
Wen, MF,Chen, L,Zhai, YC,et al. New surface modification of Zr-Ti hydrogen storage alloys[J]. RARE METAL MATERIALS AND ENGINEERING,2005,34(1):28-32.
APA Wen, MF,Chen, L,Zhai, YC,&Chen, J.(2005).New surface modification of Zr-Ti hydrogen storage alloys.RARE METAL MATERIALS AND ENGINEERING,34(1),28-32.
MLA Wen, MF,et al."New surface modification of Zr-Ti hydrogen storage alloys".RARE METAL MATERIALS AND ENGINEERING 34.1(2005):28-32.
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