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¡¾ÕªÒª¡¿LaMgnZr+200%Ni hydrogen storage alloys are prepared by means of mechanical alloying and melting-mechanical alloying methods respectively, and the structure and the electrochemical properties of LaMgnZr+200%Ni alloys are studied. The results indicate that the alloys prepared by mechanical alloying method are nearly amorphous after 20 h ball-milling, and have a weak diffraction peak of LaMg. The grain size of the alloys particles is about 2-5 ^m, and the particles of alloys have slightly clustering phenomenon. The alloys prepared by melting-mechanical alloying method are completely amorphous after 20 h ball-milling, and the particles are more uniform with spherical or near-spherical shape. The maximum discharge capacities of the alloys prepared by melting-mechanical alloying method are smaller than that of the alloys prepared by mechanical alloying method, but the cyclic stability and the high rate discharge (HRD) are better.%·Ö±ð²ÉÓûúеºÏ½ð»¯ºÍÈÛÁ¶-»úеºÏ½ð»¯ÖƱ¸ÁËLaMg11Zr+200£¥Ni´¢ÇâºÏ½ð,Ñо¿Á˺Ͻð½á¹¹ºÍµç»¯Ñ§ÐÔÄÜ.½á¹û±íÃ÷,ÓÉ»úеºÏ½ð»¯ÖƱ¸µÄºÏ½ð¾ÇòÄ¥20hºó½üÓڷǾ§»¯,µ«»¹´æÔÚÒ»¸ö΢ÈõµÄLaMgÑÜÉä·å,ºÏ½ð¿ÅÁ£µÄÁ£¶ÈΪ2¡«5¦Ìm,ÇÒÓÐÇá΢µÄÍžÛ
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