0790323-A1 is referenced by 3 patents and cites 6 patents.

A rare earth metal/nickel-base hydrogen absorbing alloy having a composition represented by formula (1): (R1-x Lx )(Ni1-y My )z , (wherein R represents La, Ce, Pr, or Nd; L represents Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, Sc, Mg, or Ca; and M represents Co, Al, Mn, Fe, Cu, Zr, Ti, Mo, Si, V, Cr, Nb, Hf, Ta, W, B, or C; 0,01 <= x <= 0.1; 0 <= y <= 0.5; and 4.5 <= z <= 5.0), wherein the content of crystals with the number of reversed-phase boundaries present perpendicularly to the C axis of crystal grains in the alloy being 2 to less than 20 per 20 nm in the direction of the C axis is 10 to less than 95 vol.% and the amount of L in the formula (I) present in the reversed-phase region is 60 to less than 95 % of the amount of L added. The negative electrode for the nickel-hydrogen secondary battery can simultnaneously improve all of the initial activity, battery capacity, and battery life.

Rare earth metal/nickel-base hydrogen absorbing alloy, process for preparing the same, and negative electrode for nickel-hydrogen secondary battery
Application Number
EP19960928668 19960828
Publication Number
0790323 (A1)
Application Date
August 28, 1996
Publication Date
August 20, 1997
Kaneko Akihito
Santoku Metal
H01M 04/38
C22C 19/00
H01M 04/38
H01M 04/24
H01M 04/38
H01M 04/24
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