| 摘要 |
A nonaqueous secondary battery having a compound of any of the general formulae (1) to (3) AaS BbD(1-b)Sy EeGgJ(1-e-g)MmSz where A is Cu, Ag or Au; 0.4 ≤ a ≤ 5; B and D are different from each other, and are each selected from the group consisting of Cu, Ag, Au, Zn, Al, W and Li; 0.001 ≤ b ≤ 0.999; 0 < y < 2; E, G and J are different from each other, and are each selected from the group consisting of Cu, Ag, Au, Zn, Al, W, Li and Mg; M is Ca, Sr, Na, K, Rb, O, F, Cl, Br or I; 0.001 < e < 0.999; 0.001 < g < 0.999; 0 ≤ m ≤ 0.2; and 0 < z < 2(1+m), as an active material of a negative electrode is disclosed. This secondary battery features a high voltage and a high energy density, and forms few dendrites of lithium when the battery is repeatedly charged and discharged. |
