| 摘要 |
An electrode material for an anode of a rechargeable lithium battery, containing a particulate comprising an amorphous Sn·A·X alloy with a substantially non-stoichiometric ratio composition. In formula Sn·A·X, A indicates at least one element selected from a group of transition metal elements Cr, Mn, Fe, Co, Ni, Cu, Mo, Tc, Ru, Rh, Pd, Ag, Ir, Pt, Au, Ti, V, Y, Sc, Zr, Nb, Hf, Ta, and W, X indicates at least one element of O or F and optionally at least one element selected from a group consisting of N, Li, S, Pb, Bi, Al, Ga, In, Tl, Zn, Be, Mg, Ca, Sr, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, B, C, Si, P, Ge, As, Se, Sb, and Te. The content of the constituent element Sn of said Sn·A·X alloy is Sn/(Sn + A + X) = 20 to 80 atomic%.%, the amount of the elements O and F in said alloy does not exceed 5 % per weight each, but at least 0.05 % weight of the elements 0 or F is present, and any O or F is predominantly located at the surface of said alloy particulate. An electrode structural body for a rechargeable lithium battery, comprising said electrode material for an anode and a collector comprising a material incapable of being alloyed with lithium in electrochemical reaction, and a rechargeable lithium battery having an anode comprising said electrode structural body. |
