HYDROGEN STORAGE ALLOY AND ALKALINE STORAGE BATTERY EMPLOYING HYDROGEN STORAGE ALLOY AS NEGATIVE ELE

文件类型：PDF文档
文件大小：701K
A hydrogen storage alloy of the present invention includes component A including a rare earth element represented by Ln and magnesium and component B including elements containing at least nickel and aluminum, wherein a primary alloy phase of a hydrogen storage alloy represents an A5B19 type structure; a general formula is represented as Ln1-xMgxNiy-a-bAlaMb (wherein M represents at least one element selected from Co, Mn, and Zn; and 0.1≦x≦0.2, 3.6≦y≦3.9, 0.1≦a≦0.2, and 0≦b≦0.1); a rare earth element Ln includes maximally two elements containing at least La; and absorption hydrogen equilibrium pressure (Pa) is 0.03-0.17 MPa when the hydrogen amount absorbed in the hydrogen storage alloy (H/M (atomic ratio)) at 40° C. is 0.5.