NOVELTY - An electric storage device has an electrolyte comprising a lithium salt and an aprotonic organic solvent, a negative electrode containing carbonaceous material into which lithium ions can be reversibly introduced and eliminated, and a positive electrode containing nitroxyl compound having a nitroxyl radical cation partial structure (I) when in an oxidized state, and a nitroxyl radical partial structure (II) when in a reduced state. The positive electrode contains a lithium compound. The nitroxyl compound forms electroconductive material.    USE - Electric storage device e.g. lamination-type electric storage device. Uses include but are not limited to primary battery, secondary battery, capacitor, electric vehicle, hybrid vehicle, storage power supply for assistance, power supply for notebook computer and mobile telephone, wind power generation, storage power supply of domestic electric appliance, etc.    ADVANTAGE - The electric storage device has excellent output characteristics and charge/discharge characteristics, and is manufactured economically and safely.    DETAILED DESCRIPTION - An electric storage device has an electrolyte comprising lithium salt and an aprotonic organic solvent, a negative electrode containing a carbonaceous material into which lithium ions can be reversibly introduced and eliminated, and a positive electrode containing a nitroxyl compound which has a nitroxyl radical cation partial structure of formula (I) when in an oxidized state, and a nitroxyl radical partial structure of formula (II) when in a reduced state. The positive electrode contains a lithium compound. The nitroxyl compound forms an electroconductive material. The nitroxyl compound is in a complex with the electroconductive material. An INDEPENDENT CLAIM is included for manufacture of electrode, which involves preparing nitroxyl compound by dripping or pouring a raw-material solution in which a nitroxyl compound is dissolved or swollen and an electroconductive material is dispersed or dissolved, in a solution in which the nitroxyl compound and the electricoconductive material does not dissolve or swell, obtaining the electroconductive material as a deposit, inserting the electroconductive material to inside of the nitroxyl compound, mixing nitroxyl compound and the electroconductive material, and complexing nitroxyl compound and electroconductive material complex and lithium compound.    DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional view of lamination-type electric storage device.    Positive electrode (101)    Negative electrode (102)    Electrical power collector (103)    Electrode lead (104)    Lamination-type electrical storage device (107)