HIGH-CAPACITY AND LONG-LIFE NEGATIVE ELECTRODE HYDROGEN STORAGE MATERIAL OF La-Mg-Ni TYPE FOR SECONDARY RECHARGEABLE NICKEL-METAL HYDRIDE BATTERY AND METHOD FOR PREPARING THE SAME

A high-capacity and long-life negative electrode hydrogen storage material of La—Mg—Ni type for secondary rechargeable nickel-metal hydride battery and a method for preparing the same are provided in the present invention. A chemical formula of the negative electrode hydrogen storage material of La—Mg—Ni type is LaReMg(NiAlM), wherein Re is at least one of Ce, Pr, Nd, Sm, Y, and M is at least one of Ti, Cr, Mo, Nb, Ga, V, Si, Zn, Sn; 0≤x≤0.10, 0.3≤y≤0.5, 0