In this study, the electrochemical properties of five types of (La,Pr,Nd)Ni3.5Co0.8Mn0.4Al0.3 alloy which Pr content in rare earth raw metal was respectively 0, 10%, 20%, 30%, 40% were studied.

• 本实验研究了稀土中镨含量分别为0、10%25、20%25、30%25、40%25的5种（La，Pr，Nd）Ni3.；5Co0