Journal of Advanced Science
Online ISSN : 1881-3917
Print ISSN : 0915-5651
ISSN-L : 0915-5651
Ni-MHバッテリー用C14型ラーベス相水素吸蔵合金の開発
Hiroaki NAKANOShinjiro WAKAO
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1997 年 9 巻 1-2 号 p. 38-42

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In order to develop C14 type alloys having excellent electrochemical properties, alloys with enthalpy-ΔH for hydride formation in the range of 35-37kJ/molH2 were designed by using relations between ΔH, cell volume VC14 of C14 structure and average atomic radius rav. Observed cell volume VC14 was in highly good agreement with designed value. Only small error around 1kJ/molH2 was found between the observed and designed ΔH values. Discharge capacities of these alloy electrodes were in the range of 367-412mAh/g at discharge current density of 17mA/g and 334-353mAh/g at 110mA/g. Good high-rate capability was also observed.

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