HYDROGEN-STORING ALLOY ELECTRODE FOR ALKALINE STORAGE BATTERY, AND ALKALINE STORAGE BATTERY COMPRIS

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PROBLEM TO BE SOLVED : To ensure the output stability of a nickel-metal hydride storage battery. SOLUTION : A hydrogen-storing alloy electrode for an alkaline storage battery contains a mixture of a hydrogen-storing alloy represented by R11-v-wNdvMgwNia-b-cAlbM1c, where R1 represents at least one kind of element selected from Zr, Y, and rare earth elements except Nd, M1 represents at least one kind of element selected from Co, Mn, and Zn, v≥0.7, 0.09≤w≤0.13, 3.40≤a≤3.60, 0.15≤b≤0.20, and 0≤c≤0.10; and a hydrogen-storing alloy represented by R21-x-yLaxMgyNid-e-fAleM2f, where R2 represents at least one kind of element selected from Zr, Y, and rare earth elements except La, M2 represents at least one kind of element selected from Co, Mn, and Zn, x≥0.5, 0.09≤y≤0.13, 3.50≤d≤3.70, 0.05≤e≤0.15, and 0≤f≤0.10. COPYRIGHT : (C)2012, JPO&INPIT