Hostname: page-component-797576ffbb-58z7q Total loading time: 0 Render date: 2023-12-11T07:32:31.090Z Has data issue: false Feature Flags: { "corePageComponentGetUserInfoFromSharedSession": true, "coreDisableEcommerce": false, "useRatesEcommerce": true } hasContentIssue false


Published online by Cambridge University Press:  01 February 2011

Stoyan Todorov Bliznakov
Affiliation:, SUNY at Binghamton, Chemistry, P.O. Box 6000, Binghamton, NY, 13902-6000, United States, 607 777 7949
Nikolay G Dimitrov
Affiliation:, SUNY at Binghamton, Chemistry, Binghamton, NY, 13902-6000, United States
Tony Spassov
Affiliation:, Sofia University, Chemistry, Sofia, 1126, Bulgaria
Alexander Popov
Affiliation:, Bulgarian Academy of Sciences, Sofia, 1000, Bulgaria
Get access


High-capacity conventional and advanced multicomponent metal hydride alloys were synthesized in this work by two different methods. A set of AB5–type intermetallic compounds, with different Al content, were produced by high-frequency vacuum induction melting method, while AB, A2B and mixed (AB5+Mg)-types composite nanocrystalline-amorphous alloys were obtained mechanochemically by high-energy ball milling in a planetary type mill. The alloys were characterized physically by XRD, SEM and thermodynamically by van't Hoff's plots derived from experimentally obtained PCT isotherms at various temperatures. Different optimized techniques for model electrode preparation from selected metal hydride alloys were also applied. The electrodes were charged-discharged electrochemically in concentrated alkaline solution. In this paper we compare the values for the electrochemical maximum capacity and cycle-life performance of the electrodes prepared by the investigated types of alloys.

Research Article
Copyright © Materials Research Society 2008

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)


1. Bliznakov, S., Popov, A. and Andreev, P., “Metal Hydride Electrodes for Battery Applications”, Portable and Emergency Power Sources, eds. Stoynov, Z. and Vladikova, D., (Prof. Marin Drinov Academic Publishing House, Sofia, 2006) pp.177215.Google Scholar
2., Metal hydride internet database, constructed by DOE, International Energy Agency, and Sandia National Laboratories. Visited on November 2007.Google Scholar
3. Bliznakov, S., Lefterova, E., Dimitrov, N., Petrov, K., Popov., A. J. Power Sources, 2007; accepted: doi:10.1016/j.jpowsour.2007.10.028.Google Scholar
4. Spassov, T., Solsona, P., Bliznakov, S., Surinach, S. and Baro, M.D., J. Alloys Comp. 356–357, 639 (2003).Google Scholar
5. Bliznakov, S., Drenchev, N., Drenchev, B., Delchev, P. and Spassov, T., J. Alloys and Comp. 404–406, 682 (2005).Google Scholar
6. Borissova, A., Bliznakov, S. and Spassov, T., J. Alloys and Compounds 434–435, 760763 (2007).Google Scholar
7. Drenchev, N., Spassov, T. and Bliznakov, S., J. of Alloys and Compounds (2006), doi:10.1016/j.jallcom.2006.10.071Google Scholar
8. Abrashev, B., Bliznakov, S., Spassov, T. and Popov, A., J. of Appl. Electrochemistry 2007; accepted: doi:10.1007/s10800-007-9322-4.Google Scholar
9. Jankowska, E., Makowiecka, M. and Jurczyk, M., J. of Alloys and Compounds 404–406, 691 (2005).Google Scholar