Effect of magnetization treatment on the electrochemical properties of La_0.9Sm_0.1Ni_2.0Co_3.0 electrode alloy

In this paper, the intrinsic magnetic properties, including the Curie temperature T_c and the saturation magnetization σ_s, and the electrochemical properties such as the maximum discharge capacity C_max, the capacity decay rate R at 50 mA g^-1 discharge current density, the high rate dischargeability HRD of La_0.9Sm_0.1Ni_2.0Co_3.0 electrode alloy, have been investigated systematically. The results show that after being magnetized, the C_max of the electrode increases, the R reduces and the HRD is improved. The exchange current density I₀ and the limiting current density I_L of the electrode alloy both increase after the magnetization treatment as calculated from the linear polarization and the anodic polarization of the alloy.