| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electrode active material offering cycle characteristics superior to conventional negative electrode active materials when used in a metal secondary battery, and a metal secondary battery comprising a negative electrode containing the electrode active material. <P>SOLUTION: The electrode active material contains a half-Heusler compound of the composition represented by the general formula (1): αβγ, where α represents an element selected from the group consisting of Fe, Co, Ni, Cu, Zn, Ru, Rh, Pd, Ag, Cd, Ir, Pt, and Au, β represents an element selected from the group consisting of Ti, V, Cr, Mn, Y, Zr, Nb, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Hf, and Ta, and γ represents an element selected from the group consisting of Al, Si, Ga, Ge, As, In, Sn, Sb, Tl, Pd, and Bi. <P>COPYRIGHT: (C)2012,JPO&INPIT |
