| 摘要 |
A lithium secondary battery comprising an anode active material, an organic electrolytic solution containing an electrolyte, and a cathode active material, wherein the anode active material contains a lithium compound substantially insoluble in the organic electrolytic solution and represented by formula (Li)pX(I) wherein X is an anion consisting of an atom or atoms and p indicates the anionic valence of X, the electrolyte contains a compound represented by formula (II): (A)q(Y)r (II) wherein A represents a cation consisting of an atom or atoms, Y represents an anion which may be identical with or different from X in formula (I) provided that the lithium salt of Y is a compound substantially insoluble in the organic electrolytic solution, q=[(anionic valence of Y)xr]/(cationic valence of A), and r=[(cationic valence of A)xq]/(anionic valence of Y), and the cathode active material contains an anion-doped compound or a compound containing a cation which is the same as A in formula (II).
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