| abstract |
A negative electrode (26) for a nickel-hydrogen secondary battery contained in a nickel-hydrogen secondary battery (2), characterized in that: the negative electrode comprises a negative electrode core and a negative electrode mixture retained on the core negative electrode; and the negative electrode mixture comprises a hydrogen absorbing alloy and a water repellent, wherein the hydrogen absorbing alloy has a composition represented by the general Formula: Ln1- xMgxNiy-a-bAlaMb (where Ln represents at least an element selected from La, Ce, Pr, Nd, Pm, Sm, Eu, 1Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Sc, Y, Ti and Zr; M represents at least one element selected from V, Nb, Ta, Cr, Mo, Mn, Fe, Co, Ga, Zn, Sn, In, Cu, Si, P and B; and the subscripts a, b, x and y fulfill the relations represented by 0.05 <= a <= 0.30, 0 <= b <= 0.50, 0 <x <0.05 and 2.8 <= y <= 3.9, respectively) and has a structure of type A2B7; and the water repellent comprises a perfluoroalkoxyalkane. |