HYDROGEN STORAGE ALLOY ELECTRODE AND SECONDARY BATTERY USING THIS ELECTRODE

文件类型：PDF文档
文件大小：472K
PROBLEM TO BE SOLVED : To provide a hydrogen storage alloy electrode which has a good alkaline resistance and continuous charge characteristics while containing rare earth-magnesium based hydrogen storage alloy and is suitable for improving volume energy density, and a secondary battery with a long life having this hydrogen storage alloy electrode which contributes to improving volume energy density and has good continuous charge characteristics. SOLUTION : The secondary battery includes a first hydrogen storage alloy particle 36 and a second hydrogen storage alloy particle 37 in the negative electrode plate 26. The first hydrogen storage alloy particle 36 has a composition as expressed by a general formula (I) : (Laa1Ceb1Prc1Ndd1(A1)e1)1-xMgx(Ni1-y(Tl)y)z. The second hydrogen storage alloy particle 37 has a composition as expressed by a general formula (II) : Laa2Ceb2Prc2Ndd2(A2)e(Ni1-f(T2)f)i. COPYRIGHT : (C)2006, JPO&NCIPI