| 摘要 |
PCT No. PCT/JP94/02190 Sec. 371 Date Aug. 2, 1996 Sec. 102(e) Date Aug. 2, 1996 PCT Filed Dec. 22, 1994 PCT Pub. No. WO95/17531 PCT Pub. Date Jun. 29, 1995A hydrogen-storage alloy containing as a component element thereof an element easily reactive with hydrogen to be selected from among the elements of Group 1A, Group 1A, Group 3A, Group 4A, and Group 4A in the Periodic Table of the Elements and having a quasi-crystalline phase as at least part of the component phases thereof. The quasi-crystalline phase has an element of axial rotation selected from among 5-fold, 8-fold, 10-fold, and 12-fold symmetric axis. The hydrogen-storage alloy exhibits outstanding resistance to corrosion, permits effective prevention of comminution, and further excels in terms of the abundance of hydrogen to be absorbed and released. An alkali secondary battery is composed of an anode containing an element easily reactive with hydrogen as one of the component elements thereof and further incorporating therein a hydrogen-storage alloy possessing a quasi-crystalline phase as at least part of the component phases thereof, a cathode such as of the Ni type, for example, and a separator serving to separate the cathode and the anode. This alkali secondary battery can realize both elongation of service life and expansion of capacity.
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