Sintering and Electrochemical Properties of Hydrogen Storage Alloys in the System Mg-Ni

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We synthesized ceramic-type Mg2Ni alloys (hydrogen storage alloy) by sintering at high temperature in Ar atmosphere and applied the sintered materials to the anode of the metal hydride batteries. As a result, it was found that the samples were obtained as sintered alloys, mainly composed of hexagonal phase with a little MgO. The discharge capacity of the sintered sample was more than 150 mAhg-1 on the 1st cycle. It decreased to lower than 50 mAhg-1 after a few cycles, but the capacity was maintained over 20 cycles. The cycling capacity retention is due to the packed fusion of the alloy particles by sintering, which denotes a good effect of sintering method to prepare alloy materials.

Info:

Periodical:

Solid State Phenomena (Volume 194)

Edited by:

Yuriy Verbovytskyy and António Pereira Gonçalves

Pages:

245-248

Citation:

T. Esaka and E. Nanbu, "Sintering and Electrochemical Properties of Hydrogen Storage Alloys in the System Mg-Ni", Solid State Phenomena, Vol. 194, pp. 245-248, 2013

Online since:

November 2012

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$38.00

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