Method for making high capacity rechargeable hydride batteries

Details Method for making high capacity rechargeable hydride batteries Method for making high capacity rechargeable hydride batteries

1994-03-14

1996-07-30

Nuzzolillo, M.

Chemistry: electrical current producing apparatus, product, and

Sealed cell having gas prevention or elimation means

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

429101, 429218, 429219, 429223, 429224, 429233, 420455, 420900, 423644, 296231, 296235, H01M 438

Patent

active

055410170

ABSTRACT:
A method to make new improved high capacity rechargeable hydride batteries comprising steps of (1) preparing an improved hydrogen storage material represented by the composition formula: A.sub.a B.sub.b Ni.sub.c D.sub.y M.sub.x R.sub.z, where A is one or more element chosen from the group of Ti, Zr, Mg; B is one or more elements chosen from the group of Al, V, Mn, Nb, Si, Pd, and Ag; D is one or more elements chosen from the group of Cr, Mn, Fe, Co, Cu, Zn, Mo, W and Sn; R is one or more elements chosen from the group of C, B, Ca, Sb, Bi, Y, Hf, Ta, N, O, Ge, Ga and Mm, where Mm is mischmetal; M is one or more elements chosen from the group of Li, Na, K, Rb, Cs, P and S; and where a, b, c, y, x and z are defined by: 0.10.ltoreq.a.ltoreq.0.85, 0.01.ltoreq.b.ltoreq.0.65, 0.02.ltoreq.c.ltoreq.0.75, 0.ltoreq.y.ltoreq.0.30, 0.ltoreq.x.ltoreq.0.30, 0.ltoreq.z.ltoreq.0.30 and a+b+c+y+x+z=1.00; (2) preparing a high capacity (1.15-2.4 AH/cc) hydrogen storage hydride electrode comprising the alloy material aforementioned; (3) preparing a high capacity (0.45-0.75 AH/cc) metal oxide positive electrode; (4) assembling a rechargeable hydride battery.

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