Hydrogen storage alloy and electrode therefrom

Details Hydrogen storage alloy and electrode therefrom Hydrogen storage alloy and electrode therefrom

1994-03-29

1996-07-02

Kalafut, Stephen

Chemistry: electrical current producing apparatus, product, and

Sealed cell having gas prevention or elimation means

Prevention or elimination means is one of the cell...

420580, 420586, 4205861, 420587, 420588, 420589, 420900, H01M 438

Patent

active

055320767

ABSTRACT:
A hydrogen storage alloy preferably used for electrodes in alkaline rechargeable battery is of the general formula: Zr.sub.1.2-a Ti.sub.a Mn.sub.v Al.sub.w Ni.sub.x M.sub.y Cr.sub.z wherein M represents at least one element selected from the group consisting of Si, Zn, Sn, Fe, Mo, Cu and Co; and wherein 0.1.ltoreq.a<1.2, 0.4.ltoreq.v.ltoreq.1.2, 0<w.ltoreq.0.3, 0.8.ltoreq.x.ltoreq.1.6, 0.ltoreq.y.ltoreq.0.2, 0.ltoreq.z.ltoreq.0.3, and 1.7.ltoreq.(v+w+x+y+z).ltoreq.2.7. The alloy has at least one of a C14-type Laves phase of a crystal structure similar to that of MgZn.sub.2 and a C15-type Laves phase of a crystal structure similar to that of MgCu.sub.2 as a main alloy phase.

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