Hydrogen storage alloy for alkali storage battery

Provided is a hydrogen-absorbing alloy suitable for the negative electrode of an alkali storage battery. An alloy which is used in an alkali storage battery and which is mainly composed of crystal phases of an A5B19 phase and an A2B7 phase and which is represented by general formula (A). (La1-a-bCea...

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Hauptverfasser:	SUZUKI RYOJI, SOMA YUKI, SAWA TAKAO, NOTOYAMA, SAKI, KUDO KATSUYUKI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ALLOYS BASIC ELECTRIC ELEMENTS CASTING CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS CHEMISTRY ELECTRICITY FERROUS OR NON-FERROUS ALLOYS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY PERFORMING OPERATIONS POWDER METALLURGY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	Provided is a hydrogen-absorbing alloy suitable for the negative electrode of an alkali storage battery. An alloy which is used in an alkali storage battery and which is mainly composed of crystal phases of an A5B19 phase and an A2B7 phase and which is represented by general formula (A). (La1-a-bCeaSmb) 1-cMgcNidMeTf (A) In the formula (A), M, T and corner marks a, b, c, d, e, and f satisfy the conditions of M: at least one element selected from the group consisting of Al, Zn, Sn, and Si, T: at least one element selected from the group consisting of Cr, Mo, and V, 0 < a < = 0.10, 0 < = b < 0.15, 0.08 < = c < = 0.24, 0.03 < = e < = 0.14, 0 < = f < = 0.05, and 3.55 < = d + e + f < = 3.80. 本发明提供一种适于碱蓄电池的负极的氢吸留合金。一种合金，是碱蓄电池中使用的氢吸留合金，该氢吸留合金主要由A5B19相和A2B7相的结晶相构成，并且由下述通式(A)表示。(La1－a－bCeaSmb)1－cMgcNidMeTf···(A)这里，上述(A)式中的M、T以及角标a、b、c、d、e和f满足M：选自Al、Zn、Sn、Si中的至少1种、T：选自Cr、Mo、V中的至少1种、0＜a≤0.10、0≤b＜0.15、0.08≤c≤0.24、0.03≤e≤0.14、0≤f≤0.05、3.55≤d+e+f≤3.80的条件。