A non-aqueous lithium-type electricity storage element comprising a positive electrode, a negative electrode, a separator and a non-aqueous electrolytic solution containing lithium ions, wherein the negative electrode has a negative electrode current collector, and a negative electrode active material layer containing a negative electrode active material, disposed on one or both sides of the negative electrode current collector, the negative electrode active material contains a carbon material capable of intercalating and releasing lithium ions, the positive electrode has a positive electrode current collector, and a positive electrode active material layer containing a positive electrode active material, disposed on one or both sides of the positive electrode current collector, the positive electrode active material contains an activated carbon and a transition metal oxide capable of intercalating and releasing lithium ions, and the positive electrode active material layer contains a component A having a signal in a range of - 2 to 2.5 ppm and a component B having a signal in a range of - 6 to - 2.5 ppm in a solid-state 7 Li-NMR spectrum of the positive electrode active material layer, and has a signal area ratio a/b, determined as described in the sections of the description entitled [Solid-State 7 Li-NMR in Positive Electrode Active Material Layer] and [Solid-State 7 Li-NMR Measurement], of 1.5 to 20.0 when a signal area of the component A is a, and a signal area of the component B is b, wherein the positive electrode contains one or more selected from the group consisting of lithium carbonate, sodium carbonate, potassium carbonate, rubidium carbonate, and cesium carbonate in an amount of 1% by weight or greater and 50% by weight or less relative to a total amount of the positive electrode active material. wherein the negative electrode has a negative electrode current collector, and a negative electrode active material layer containing a negative electrode active material, disposed on one or both sides of the negative electrode current collector, the negative electrode active material contains a carbon material capable of intercalating and releasing lithium ions, the positive electrode has a positive electrode current collector, and a positive electrode active material layer containing a positive electrode active material, disposed on one or both sides of the positive electrode current collector, the positive electrode active material contains an activated carbon and a transition metal oxide capable of intercalating and releasing lithium ions, and the positive electrode active material layer contains a component A having a signal in a range of - 2 to 2.5 ppm and a component B having a signal in a range of - 6 to - 2.5 ppm in a solid-state 7 Li-NMR spectrum of the positive electrode active material layer, and has a signal area ratio a/b, determined as described in the sections of the description entitled [Solid-State 7 Li-NMR in Positive Electrode Active Material Layer] and [Solid-State 7 Li-NMR Measurement], of 1.5 to 20.0 when a signal area of the component A is a, and a signal area of the component B is b, wherein the positive electrode contains one or more selected from the group consisting of lithium carbonate, sodium carbonate, potassium carbonate, rubidium carbonate, and cesium carbonate in an amount of 1% by weight or greater and 50% by weight or less relative to a total amount of the positive electrode active material.