Effect of Annealing on Rare Earth Based Hydrogen Storage Alloys

【Author】

Li Jinhua (Inner Mongolia Rare Earth Ovonic Metal Hydride Co. Ltd. , Baotou 140030, China)

【Abstract】

<正> Rare earth-based hydrogen storage alloy used as negative electrode materials for nickel-metal hydride (NiMH) batteries are used commercially. The effect of annealing treatment with different annealing temperature and time on the MLNi3.68Co0.78Mn0.35 Al0.27 and MMNi3.55Co0.75Mn0.40 Al0.30 alloys were investigated. The crystal microstructure, pressure-composition-isotherms (p-C-T) and electrochemical properties of alloys were examined by X-ray diffraction (XRD), automatic PCI monitoring system and electrical performance testing instruments. The optimum annealing treatment conditions of two kinds of alloys were determined.

【Keywords】

hydrogen storage alloys; annealing; rare earths

References

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Total: 7 articles

  • [1] Willems J J G, Metal hydride electrodes stability of LaNi5-related compounds, Philps Journal of Research,
  • [2] Lin HC; Lin KM; Chou H T, et al, Efect of annealing and NaOH pretreatment on an LmNi3. 65Mn0. 27 Co0. 74 hydrogen storage alloy, J. Alloys and Compd, Journal of Alloys and Compounds (Journal of Alloys and Compounds)
  • [3] Sandrock Gary, A panoramic overview of hydrogen strorage alloys from a gas reaction point of view, J. Alloys and Compd, Journal of Alloys and Compounds (Journal of Alloys and Compounds)
  • [4] Wu Chaoling; Chen Yungui; Li Feng, et al, Effect of strip casting and annealing on electrochemical properties of LPCN3. 55 Co0. 75 Mn0. 4 AI0. 3 hydrogen storage alloys, J. of Rare Earths, Journal of Rare Earths (Journal of Rare Earths)

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