Effect of magnetization treatment on the electrochemical properties of La0.9Sm0.1Ni2.0Co3.0 electrode alloy

In this paper, the intrinsic magnetic properties, including the Curie tempe rature T-c and the saturation magnetization sigma (s), and the electrochemi cal properties such as the maximum discharge capacity C-max the capacity de cay rate R at 50 mA g(-1) discharge current density, the high rate discharg eability HRD of La0.9Sm0.1Ni2.0Co3.0 electrode alloy, have been investigate d systematically. The results show that after being magnetized, the C-max o f the electrode increases, the R reduces and the HRD is improved. The excha nge current density I-0 and the limiting current density I-L of the electro de alloy both increase after the magnetization treatment as calculated from the linear polarization and the anodic polarization of the alloy. (C) 2001 Elsevier Science B.V. All rights reserved.