The electrochemical evaluation of ball milled MgNi-based hydrogen storage alloys

The electrochemical evaluation of ball milled MgNi-based hydrogen storage alloys

The electrochemical properties of amorphous MgNi-based hydrogen storage alloys synthesized by ball milling were evaluated. In order to improve the cycle life, the surface of the amorphous Mg 50Ni 50 alloy was coated with Ti, Al and Zr by ball milling. Among them Ti was very effective to improve cycl...

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Veröffentlicht in:Journal of alloys and compounds 1999-03, Vol.285 (1), p.L8-L11
Hauptverfasser: Han, Sang-Cheol, Jiang, Jian-Jun, Park, Jeong-Gun, Jang, Kuk-Jin, Chin, Euk-Yong, Lee, Jai-Young
Format: Artikel
Sprache:eng
Schlagworte:
Amorphous
Applied sciences
Ball milling
Chemical and electrochemical properties
Electrochemical properties
Exact sciences and technology
Metal hydride electrode
Metals. Metallurgy
Mg-based alloys
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Zusammenfassung:The electrochemical properties of amorphous MgNi-based hydrogen storage alloys synthesized by ball milling were evaluated. In order to improve the cycle life, the surface of the amorphous Mg 50Ni 50 alloy was coated with Ti, Al and Zr by ball milling. Among them Ti was very effective to improve cycle life. And two kinds of MgNi-based amorphous alloys were designed by the substitution of Ti and other elements for Mg of MgNi-based alloys, which were composed of four components. Thus, the cycle life of electrodes with these quaternary amorphous alloys was strongly improved.
ISSN:0925-8388
1873-4669
DOI:10.1016/S0925-8388(99)00015-8