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There are two types of metal hydride electrodes as a negative electrode in a Ni-MH battery, AB2 Zr-based Laves phases and AB5 LM(La-rich mischmetal)-based alloys. The AB5 alloy electrodes have characteristic properties such as a large discharge capacity per volume, easiness in activation, long cycle life and a low cost of alloy. However they have a relatively small discharge capacity per weight. The AB2 alloy electrodes have a much higher discharge capacity per weight than AB5 alloy electrodes, however they have some disadvantages of poor activation behavior and cycle life. Therefore, in order to improve the discharge capacity of the AB5 alloy electrode the Zr, Ti and V which are the alloying elements of the AB2 alloys were added to the LaNi3.6Ai0.4Co0.7Mn0.3 alloy which was chosen as a AB5 alloy with a high capacity. The addition of Zr, Ti and V to LaNi3.6Ai0.4Co0.7Mn0.3 alloy improved the activation to be completed in two cycles. The discharge capacities of Zr 0.02, Ti 0.02 and V 0.1 alloys in LaNi3.6Ai0.4Co0.7Mn0.3My (M = Zr, Ti, V) were respectively 346, 348 and 366 mAh/galloy. The alloy electrodes, Zr 0.02, Ti 0.05 and V 0.1 in LaNi3.6Ai0.4Co0.7Mn0.3My (M = Zr, Ti, V), have shown good cycle property after 200 cycles. The rate capability of the LaNi3.6Ai0.4Co0.7Mn0.3My (M = Zr, Ti, V) alloy electrodes were very good until 0.6 C rate and the alloys, Zr 0.02, Ti 0.05 and V 0.1, have shown the best result as 92 % at 2.4 C rate. The charge retention property of the LaNi3.6Ai0.4Co0.7 Mn0.3My (M = Zr, Ti, V) alloys was not good and the alloys with M content from 0.02 to 0.05 showed better charge retention properties.