| 简介 |
PROBLEM TO BE SOLVED : To provide a multi-phase metal hydride alloy material which is capable of reversibly absorbing and desorbing hydrogen, and to provide a metal hydride batteries including the alloys.
SOLUTION : The multi-phase metal hydride alloy material including Ti, Zr, V, Ni and a modifier element is provided that includes : a first main phase or group of phases having an AB2 type crystalline structure and having the concentration of the modifier element greater than 0; and a second phase having the concentration of the modifier element, which is 10 times greater than the concentration of the modifier element in the first phase or group of phases. The modifier element mainly composed of Ni and contains a light rare earth element with yttrium as an option.
SELECTED DRAWING : Figure 1
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