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The Effect of High Charging Rates Activation on the Specific Discharge Capacity and Efficiency of a Negative Electrode Based on a LaMgAlMnCoNi Alloy
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The Effect of High Charging Rates Activation on the Specific Discharge Capacity and Efficiency of a Negative Electrode Based on a LaMgAlMnCoNi Alloy

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Abstract:

A nickel-metal hydride (Ni-MH) rechargeable battery has been prepared using a La0.7Mg0.3Al0.3Mn0.4Co0.5Ni3.8 alloy as the negative electrode. The maximum discharge capacity of the La0.7Mg0.3Al0.3Mn0.4Co0.5Ni3.8 alloy has been determined (350 mAh/g). Using a high starting charging rate (2857 mAg-1) an efficiency of 49% has been achieved in the 4th cycle. The alloy and powders have been characterized by scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX) and X-ray diffraction (XRD).

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Periodical:

Materials Science Forum (Volumes 660-661)

Pages:

133-138

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.660-661.133

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Online since:

October 2010

Authors:

Eliner Affonso Ferreira, Lia Maria Carlotti Zarpelon, Julio César Serafim Casini, Hidetoshi Takiishi, R.N. Faria

Keywords:

EDX, Microanalysis, Rare Earth (RE), Transition Metal, X-Ray Diffraction (XRD)

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© 2010 Trans Tech Publications Ltd. All Rights Reserved

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