Patent ID: 6300009
Filing Date: 2001-10-09
Classification: C01G,C01P,H01M,Y02E

Abstract:
A lithium secondary battery comprising a positive electrode, a negative electrode and a nonaqueous electrolyte, the positive electrode or the negative electrode including an active material of a composite sulfide having the same crystal structure as MoS.sub.2 or Mo.sub.2 S.sub.3 or the composite sulfide including lithium, and the composite sulfide being represented by a formula, M.sub.X Mo.sub.1-X S.sub.Y, in which M is at least one element selected from the group consisting of Cu, V, Cr, Mn, Fe, Co, Ni, Ti, Y, Cd, In, La, Ce, Pr, Nd, Sm, W, Pt, Pb, Ca, Sr and Ba; 0<X<0.46; and 1.5.ltoreq.Y.ltoreq.2.0.