Electrochemical performances of the as-melt La0.75−xMxMg0.25Ni3.2Co0.2Al0.1 (M = Pr, Zr; x = 0, 0.2) alloys applied to Ni/metal hydride (MH) battery

► New alloys applied to Ni-MH battery were investigated. ► Melt spinning technology was used to prepare the alloys. ► A comparison of substituting La with Pr and Zr was scarcely any reported before. ► The as-spun alloys exhibited very superior electrochemical cycle stability. ► The electrochemical kinetics of the alloys was investigated in details.