A nonaqueous lithium-type power storage element provided with a positive electrode, a negative electrode, a separator and a nonaqueous electrolytic solution containing lithium ions; wherein, the negative electrode has a negative electrode power collector and a negative electrode active material layer (4,5) containing a negative electrode active material provided on one side or both sides of the negative electrode power collector, and the negative electrode active material contains a carbon material capable of intercalating and releasing lithium ions, the positive electrode has a positive electrode power collector and a positive electrode active material layer (1,2) containing a positive electrode active material provided on one side or both sides of the positive electrode power collector, and the positive electrode active material contains activated carbon, and the positive electrode active material layer (1,2) contains 1.60 × 10 -4 mol/g to 300 × 10 -4 mol/g of one or more types of compounds selected from compounds represented by the following formulas to per unit weight of the positive electrode active material layer: [Chem. 1] LiX 1 -OR 1 O-X 2 Li wherein R 1 represents an alkylene group having 1 to 4 carbon atoms or a halogenated alkylene group having 1 to 4 carbon atoms, and X 1 and X 2 respectively and independently represent - n wherein n represents 0 or 1, [Chem. 2] LiX 1 -OR 1 O-X 2 R 2 wherein R 1 represents an alkylene group having 1 to 4 carbon atoms or a halogenated alkylene group having 1 to 4 carbon atoms, R 2 represents a group selected from a hydrogen atom and a group consisting of an alkyl group having 1 to 10 carbon atoms, a mono- or polyhydroxyalkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, a mono- or polyhydroxyalkenyl group having 2 to 10 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms and an aryl group, and X 1 and X 2 respectively and independently represent - n wherein n represents 0 or 1, and [Chem. 3] R 2 X 1 -OR 2 O-X 2 R 3 wherein R 1 represents an alkylene group having 1 to 4 carbon atoms or a halogenated alkylene group having 1 to 4 carbon atoms, R 2 and R 3 respectively and independently represent a group selected from a hydrogen atom and a group consisting an alkyl group having 1 to 10 carbon atoms, a mono- or polyhydroxyalkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, a mono- or polyhydroxyalkenyl group having 2 to 10 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms and an aryl group, and X 1 and X 2 respectively and independently represent - n wherein n represents 0 or 1. the negative electrode has a negative electrode power collector and a negative electrode active material layer (4,5) containing a negative electrode active material provided on one side or both sides of the negative electrode power collector, and the negative electrode active material contains a carbon material capable of intercalating and releasing lithium ions, the positive electrode has a positive electrode power collector and a positive electrode active material layer (1,2) containing a positive electrode active material provided on one side or both sides of the positive electrode power collector, and the positive electrode active material contains activated carbon, and the positive electrode active material layer (1,2) contains 1.60 × 10 -4 mol/g to 300 × 10 -4 mol/g of one or more types of compounds selected from compounds represented by the following formulas to per unit weight of the positive electrode active material layer: [Chem. 1] LiX 1 -OR 1 O-X 2 Li wherein R 1 represents an alkylene group having 1 to 4 carbon atoms or a halogenated alkylene group having 1 to 4 carbon atoms, and X 1 and X 2 respectively and independently represent - n wherein n represents 0 or 1, [Chem. 2] LiX 1 -OR 1 O-X 2 R 2 wherein R 1 represents an alkylene group having 1 to 4 carbon atoms or a halogenated alkylene group having 1 to 4 carbon atoms, R 2 represents a group selected from a hydrogen atom and a group consisting of an alkyl group having 1 to 10 carbon atoms, a mono- or polyhydroxyalkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, a mono- or polyhydroxyalkenyl group having 2 to 10 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms and an aryl group, and X 1 and X 2 respectively and independently represent - n wherein n represents 0 or 1, and [Chem. 3] R 2 X 1 -OR 2 O-X 2 R 3 wherein R 1 represents an alkylene group having 1 to 4 carbon atoms or a halogenated alkylene group having 1 to 4 carbon atoms, R 2 and R 3 respectively and independently represent a group selected from a hydrogen atom and a group consisting an alkyl group having 1 to 10 carbon atoms, a mono- or polyhydroxyalkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, a mono- or polyhydroxyalkenyl group having 2 to 10 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms and an aryl group, and X 1 and X 2 respectively and independently represent - n wherein n represents 0 or 1.