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Hydrogneation and Electrochemical Characteristics of Gas-atomized Zr-based $AB_2$ Hydride for Ni-MH Secondary Battery  

Kim, Jin-Ho (Korea Institute of Ceramic Engineering & Technology, Icheon Branch Institute)
Hwang, Kwang-Taek (Korea Institute of Ceramic Engineering & Technology, Icheon Branch Institute)
Kim, Byung-Kwan (Korea Energy Materials CO., LTD)
Han, Jeong-Seb (Dept. of Materials Science and Engineering, DongA Univ.)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.20, no.6, 2009 , pp. 505-511 More about this Journal
Abstract
The hydriding and electrochemical characteristics of Zr-based $AB_2$ alloy produced by gas atomization have been extensively examined. For the particle morphology of the as-cast and gas-atomized powders, it can be seen that the mechanically crushed powders are irregular, while the atomized powder particles are spherical. The increase of jet pressure of gas atomization process results in the decrease of hydrogen storage capacity and the slope of plateau pressure significantly increases. TEM and EDS studies showed the increase of jet pressure in the atomization process accelerated the phase separation within grain of the gas-atomized alloy, which brought about a poor hydrogenation property. However, the gas-atomized $AB_2$ alloy powders produced by jet pressure of 50 bar kept up the reversible $H_2$ storage capacity and discharge capacity similar to the mechanically crushed particles. In addition, the electrode of gas-atomized Zr-based $AB_2$ alloy of 50 bar showed improved cyclic stability over that of the cast and crushed particulate, which is attributed to the restriction of crack propagation by grain boundary and dislocation with ch/discharging cycling.
Keywords
Metal hydride; Gas atomization; Hydrogen; Hydrogenation; Ni-MH secondary battery;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 A. Zuttel : 'Materials for hydrogen storage', Mater Today 6, 2003, pp. 24-33
2 J.H. Kim, H. Lee, P.S. Lee, C.Y. Seo, J.Y. Lee : 'A study on the improvement of the cyclic durability by Cr substitution in V-Ti alloy and surface modification by the ball-milling process', J. Alloys and Compounds 348, 2003, pp. 293-300   DOI   ScienceOn
3 S. Lagutkin, L. Achelis, S. Sheikhaliev, V. Uhlenwinkel, V. Srivastava : 'Atomization process for metal powder', Materials Science and Engineering A 383, 2004, pp. 1-6   DOI   ScienceOn
4 H. Yuexiang, Z. Hong : 'Charateristics of a lowcobalt AB5-type hydrogen storage alloy obtained by a gas-atomization processing', J. Alloys and Compounds 305, 2000, pp. 76-81   DOI   ScienceOn
5 S.-R. Chung, T.-P. Perng : 'Effect of particle size on hydrogenation properties of a gas-atomized AB5-type alloy', J. Alloys and Compounds 353, 2003, pp. 289-294   DOI   ScienceOn
6 S.-R. Chung, T.-P. Perng : 'Electrochemical performance of gas-atomized MmNi5-based-alloy powders', J. Alloys and Compounds 356-357, 2003, pp. 768-772   DOI   ScienceOn
7 I.E. Anderson, R.L. Terpstra : 'Progress toward gas atomization processing with increased uniformity and control', Materials Science and Engineering A 326, 2002, pp. 101-109   DOI   ScienceOn
8 Dong-Myoung Kim, Jae-Han Jung, Sang-Min Lee, Jai-Young Lee : 'A study on the Zr-Ti-Mn-V-Ni hydride for Ni-MH sencondary battery with high capacity', Journal of the Korean Hydrogen Energy Society Vol. 7, No. 2, 1996, pp. 137-145
9 Jung-Hyun Yu, Sung-Wook Cho, Choong-Nyun Park, Jeon Choi : 'Study on the hydrogen storage for Ti-Cr-Mo and Ti-Cr-V based BCC alloys', Transactions of the Korean Hydrogen and New Energy Society Vol. 16, No. 2, 2005, pp. 122-129   과학기술학회마을
10 H. Yoshinaga, Y. Arami, O. Kajita, T. Sakai : 'Highly densed-MH electrode using flaky nickel powder and gas-atomized hydrogen storage alloy powder', J. Alloys and Compounds 330-332, 2002, pp. 846-850   DOI   ScienceOn
11 S. Shi, J.Y. Hwang : 'Research frontier on new materials and concepts for hydrogen storage', Int. J. Hydrogen Energy 32, 2007, pp. 224-228   DOI   ScienceOn
12 B. Sakintuna, F.L. Darkrim, M. Hirscher : 'Metal hydride materials for solid hydrogen storage:A review', Int. J. Hydrogen Energy 32, 2007, pp. 1121-1140   DOI   ScienceOn
13 T. Kohno, H. Yoshida, M. Kanda : 'Hydrogen storage properties of La(Ni0.9M0.1)3 alloys', J. Alloys and Compounds 363, 2004, pp. 254-257   DOI   ScienceOn
14 K. Yanagimoto, K. Majima, S. Sunada, T. Sawada : 'Effects of surface modification on surface structure and electrochemical properties of Mm (Ni,Co,Mn,Al)5.0 alloy powder', J. Alloys and Compounds 377, 2004, pp. 174-178   DOI   ScienceOn
15 Z. Shi, S. Chumbley, F. C.Laabs : 'Electron diffraction analysis of an AB2-type Laves phase for hydrogen battery application', J. Alloys and Compounds 312, 2000, pp. 41-52   DOI   ScienceOn
16 J. Hout, J.F. Pelletier, L.B. Lurio, M. Sutton, R.Schulz : 'Investigation of dehydrogenation mechanism of MgH2-Nb nanocomposites', J. Alloys and Compounds 348, 2003, pp. 319-324   DOI   ScienceOn
17 M. Kandavel, V.V. Bhat, A. Rougier, L. Aymard, G.-A. Nazri, J.-M. Tarascon : 'Improvemint of hydrogen storage properties of the $AB_2$ Laves phase alloys for automotive application', Int. J. Hydrogen Energy 33, 2008, pp. 3754-3761   DOI   ScienceOn
18 Jung-Geon Park, Dong-Myoung Kim, Kuk-Jin Jang, Jae-Sung Han, Jai-Young Lee : 'The thermal cycling stability of V-Ti based alloy', Journal of the Korean Hydrogen Energy Society Vol. 9, No. 3, 1998, pp. 13-17