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 c...
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/discharge cycling of the Ti_<sub>1-x</sub>Zr<sub>x</sub>VNi and Ti_<sub>1-x</sub>Zr<sub>x</sub>V<sub>0.5</sub>Ni<sub>1.5</sub> alloys were measured by electrochemical method. The electrode properties of the copper or nickel plated Ti_<sub>1-x</sub>Zr<sub>x</sub>V<sub>0.5</sub>Ni<sub>1.5</sub> alloys were examined with a battery charge/diacharge testing system in the temperature range of -5 to 25 ℃.