Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Electrochemical Properties of Hydrogen Absorbing Ability Ti1-XZrxVNi Ti1-XZrxV0.5Ni1.5 Alloys

Ti1-XZrxVNi 및 Ti1-XZrxV0.5Ni1.5계 수소저장합금의 전기화학적 성질

  • Cho, Tae-Hwan (Dept. of Chem, Technol., College of Eng. and Technol., Dankook Univ.) ;
  • Park, Chan-Kyo (Dept. of Chem, Technol., College of Eng. and Technol., Dankook Univ.)
  • 조태환 (단국대학교 공과대학 공업화학과) ;
  • 박찬교 (단국대학교 공과대학 공업화학과)
  • Published : 1990.12.31
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Abstract

Nickel-hydrogen battery systems with metal hydride alloys are expected to have both higher energy density and lower pollution than nickel-cadmium cells. Nickel-hydrogen storage cells are expected to be well-suited for use in space crafts for a large capacity power storage system. Their major advantages are not only a capability of deep DOD(depth of discharge) using but also with excellent durability under excessive overcharging and overdischarging. In this study, the charge/discharge capacities, anodic polarization characteristics and durability for the continious charge/diacharge cycling of the $Ti_{1-X}Zr_XVNi$ and $Ti_{1-X}Zr_XV_{0.5}Ni_{1.5}$ alloys were measured by electrochemical method. The electrode properties of the copper or nickel plated $Ti_{1-X}Zr_XV_{0.5}Ni_{1.5}$ alloys were examined with a battery charge/discharge testing system in the temperature range of -5 to $25^{\circ}C$.

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