A lithium ion secondary battery comprising a positive electrode, a negative electrode, a separator and a lithium ion-containing nonaqueous electrolytic solution, wherein the negative electrode has a negative electrode power collector, and a negative electrode active material layer containing a negative electrode active material provided on one or both sides of the negative electrode power collector, the positive electrode has a positive electrode power collector, and a positive electrode active material layer containing a positive electrode active material provided on one or both sides of the positive electrode power collector, the positive electrode active material containing a transition metal oxide capable of intercalating and releasing lithium ions, and characterized in that the positive electrode active material layer comprises one or more compounds selected from the group consisting of the following formulas to , at 3.8 × 10 -9 mol/g to 3.0 × 10 -2 mol/g per unit weight of the positive electrode active material layer, [Chemical Formula 1] Li X 1 -OR 1 O-X 2 Li in formula , R 1 is an alkylene group of 1 to 4 carbon atoms or a halogenated alkylene group of 1 to 4 carbon atoms, and X 1 and X 2 are each independently -(COO) n where n is 0 or 1, [Chemical Formula 2] Li X 1 -OR 1 O-X 2 R 2 in formula , R 1 is an alkylene group of 1 to 4 carbon atoms or a halogenated alkylene group of 1 to 4 carbon atoms, R 2 is hydrogen, an alkyl group of 1 to 10 carbon atoms, a mono- or polyhydroxyalkyl group of 1 to 10 carbon atoms, an alkenyl group of 2 to 10 carbon atoms, a mono- or polyhydroxyalkenyl group of 2 to 10 carbon atoms, a cycloalkyl group of 3 to 6 carbon atoms, or an aryl group, and X 1 and X 2 are each independently -(COO) n where n is 0 or 1, and [Chemical Formula 3] R 2 X 1 -OR 1 O-X 2 R 3 in formula , R 1 is an alkylene group of 1 to 4 carbon atoms or a halogenated alkylene group of 1 to 4 carbon atoms, R 2 and R 3 are each independently hydrogen, an alkyl group of 1 to 10 carbon atoms, a polyhydroxyalkyl group of 1 to 10 carbon atoms, an alkenyl group of 2 to 10 carbon atoms, a mono- or polyhydroxyalkenyl group of 2 to 10 carbon atoms, a cycloalkyl group of 3 to 6 carbon atoms or an aryl group, and X 1 and X 2 are each independently -(COO) n where n is 0 or 1. the negative electrode has a negative electrode power collector, and a negative electrode active material layer containing a negative electrode active material provided on one or both sides of the negative electrode power collector, the positive electrode has a positive electrode power collector, and a positive electrode active material layer containing a positive electrode active material provided on one or both sides of the positive electrode power collector, the positive electrode active material containing a transition metal oxide capable of intercalating and releasing lithium ions, and characterized in that the positive electrode active material layer comprises one or more compounds selected from the group consisting of the following formulas to , at 3.8 × 10 -9 mol/g to 3.0 × 10 -2 mol/g per unit weight of the positive electrode active material layer, [Chemical Formula 1] Li X 1 -OR 1 O-X 2 Li <EOS>