Abstract
In order to improve the cycling stability of AB5 type alloy electrodes, rapid quenching technology and new alloy composition design were employed. A hydrogen storage alloy with nominal composition La0.6Ce0.4Ni3.6Co0.65Mn0.4Al0.2Ti0.05(FeB)0.1 was prepared by vacuum magnetic levitation melting under high purity argon atmosphere, followed by rapid quenching at different cooling rates. XRD results show that all alloys exhibit the single-phase CaCu5-type structure. Electrochemical tests indicate that rapid quenching can slightly improve the cycling life of the alloy. Nevertheless, the high-rate dischargeability of the quenched alloys is lower than that of the as-cast alloy.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Shan X., Payer J.H., and Wainright J.S., Improved durability of hydrogen storage alloys, J. Alloys Compd., 2007, 430: 262.
Tliha M., Mathlouthi H., Lamloumi J., and Percheron-Guegan A., AB5-type hydrogen storage alloy used as anodic materials in Ni-MH batteries, J. Alloys Compd., 2007, 436: 221.
Zhang Y.H., Wang G.Q., Dong X.P., Guo S.H., Ren J.Y., and Wang X.L., Effect of substituting Co with Fe on the cycle stabilities of the as-cast and quenched AB5-type hydrogen storage alloys, J. Power Sources, 2005, 148: 105.
Seo C.Y., Choi S.J., Choi J., Park C.N., and Lee J.Y., Effect of vanadium content on electrochemical properties of La-based AB5-type metal hydride electrode, Int. J. Hydrogen Energy, 2003, 28: 967.
Moussa M. B., Abdellaoui M., Mathlouthi H., Lamloumi J., and Percheron G.A., Electrochemical properties of the MmNi3.55Mn0.4Al0.3Co0.75−x Fex (x = 0.55 and 0.75) compounds, J. Alloys Compd., 2008, 458: 410.
Zhang Y.H., Chen M.Y., Wang X.L., Wang G.Q., Dong X.P., and Qi Y., Microstructure and electrochemical characteristics of Mm(Ni,Co,Mn,Al)5Bx (x = 0–0.4) hydrogen storage alloys prepared by cast and rapid quenching, Electrochim. Acta, 2004, 49: 1161.
Bliznakov S., Lefterova E., Dimitrov N., Petrov K., and Popov A., A study of the Al content impact on the properties of MmNi4.4−x Co0.6Alx alloys as precursors for negative electrodes in NiMH batteries, J. Power Sources, 2008, 176: 381.
Lei Y.Q., Zhang S.K., Lü G.L., Chen X.L., Wang Q.D., and Wu F., Influence of the material processing on the electrochemical properties of cobalt-free Ml(NiMnAlFe)5 alloy, J. Alloys Compd., 2002, 330–332: 861.
Zhang S.K., Shu K.Y., Lei Y.Q., Lü G.L., and Wang Q.D., The effect of solidification rate on the microstructure and electrochemical properties of Co-free Ml(NiMnAlFe)5 alloys, Int. J. Hydrogen Energy, 2003, 28: 977.
Zhang Y.H., Chen M.Y., Dong X.P., Wang G.Q., and Wang X.L., The effects of rapid quenching on the microstructures and electrochemical properties of low-Co AB5-type electrode alloy, J. Alloys Compd., 2004, 376: 275.
Brateng R., Gulbrandsen-Dahl S., Valøen L.O., Solberg J.K., and Tunold R., Structural and electrochemical characterization of a melt spun AB5-type alloy, J. Alloys Compd., 2005, 396: 100.
Lei Y.Q., Zhou Y., and Luo Y.C., Preparation and electrochemical properties of unidirectionally solidified Ml(NiCoMnTi)5 alloys, J. Alloys Compd., 1997, 253–254: 590.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Zhang, P., Song, X., Wang, X. et al. Effect of rapid quenching on the microstructure and electrochemical characteristics of La0.6Ce0.4Ni3.6Co0.65Mn0.4Al0.2Ti0.05(FeB)0.1 hydrogen storage alloy. Rare Metals 29, 593–596 (2010). https://doi.org/10.1007/s12598-010-0176-2
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12598-010-0176-2