Effect of Al on Behavior of AB_5-Type Metal Hydride Anodes at Elevated Temperature

摘要

1　Ｉｎｔｒｏｄｕｃｔｉｏｎ　ＡＢ5 ｔｙｐｅｈｙｄｒｏｇｅｎｓｔｏｒａｇｅａｌｌｏｙｓｈａｖｅｂｅｅｎｉｎｔｅｎ ｓｉｖｅｌｙｉｎｖｅｓｔｉｇａｔｅｄｓｉｎｃｅｔｈｅｆｉｒｓｔｕｓｅａｓａｎｅｌｅｃｔｒｏｄｅｒｅｐｏｒｔｅｄｂｙＪｕｓｔｉｉｎ 1973[1] .ＴｈｅｃｏｍｍｅｒｃｉａｌＡＢ5ｅｌｅｃｔｒｏｄｅｓｕｓｅｍｉｓｃｈｍｅｔａｌ,ａｌｏｗｃｏｓｔｍｉｘｔｕｒｅｏｆｒａｒｅｅａｒｔｈｅｌｅｍｅｎｔｓ ,ａｓａｓｕｂｓｔｉｔｕｔｅｆｏｒＬａ ,ｗｈｉｌｅｔｈｅＢ5ｃｏｍｐｏｎｅｎｔｒｅｍａｉｎｓｐｒｉｍａｒｉｌｙＮｉｂｕｔｉｓｓｕｂｓｔｉｔｕｔｅｄｉｎｐａｒｔｗｉｔｈＣｏ ,Ｍｎ ,Ａｌｅｔｃ[2 ] .Ｉｎ 1987,ａｎａｌｌｏｙｏｆｃｏｍｐｏｓｉｔｉｏｎＭｍＮｉ3.55Ｃｏ0 .75Ｍｎ0 .4 Ａｌ0 .3 ｗａｓｓｈｏｗｎｔｏｍｅｅｔｔｈｅｍｉｎｉｍｕｍｒｅｑｕｉｒｅｍｅｎｔｓｆｏｒａｐｒａｃｔｉｃａｌｂａｔ ｔｅｒｙｗｉｔｈｒｅｓｐｅｃｔｔｏｃｏｓｔ,ｃｙｃｌｅｌｉｆｅａｎｄｓｔｏｒａｇｅｃａｐａｃ ｉｔｙ[3] .Ｉｎｄｅｅｄ ,ｔｈｉｓｃｏｍｐｏｓｉｔｉｏｎｉｓｖｅｒｙｓｉｍｉｌａｒｔ...