TECHNOLOGY FOCUS - ELECTRONICS - Preferred Properties: The product of electrostatic capacitance and internal resistance of the nonaqueous lithium-type electrical storage element is 2.4 or less. The gas volume generated when nonaqueous lithium-type electrical storage element is preserved at cell voltage of 4 V and environmental temperature of 60 degrees C for two months is 13x 10-3 cc/F or less.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Composition: The total amount of sulfur compound contained in negative electrode active material layer is preferably (15.7-770)x 10-6 mol/g with respect to unit mass of negative electrode active material. The nonaqueous electrolyte solution contains 20 vol.% or more linear carbonate with respect to whole quantity except lithium salt. The lithium salt is lithium hexafluorophosphate. The negative electrode active material is composite porous material which covers carbonaceous material on the surface of activated carbon. The composite porous material contains 1050-2050 mAh/g or more lithium ion with respect to unit mass of composite porous material. The content of carbonaceous material with respect to activated carbon is 10-60 %mass. The mesopore amount derived from pore with diameter of 500 Angstrom or less in negative electrode active material is 0.010-0.25. The micropore amount derived from pore with diameter of less than 20 Angstrom in negative electrode active material is 0.001-0.2. The ratio of micropore amount derived from pore with diameter of less than 20 Angstrom and mesopore amount derived from pore with diameter of 500 Angstrom or less is 1.5-20. The micropore amount derived from pore with diameter of less than 20 Angstrom in positive electrode active material is more than 0.3 and 0.8 or less. The mesopore amount derived from pore with diameter of 500 Angstrom or less in positive electrode active material is 0.5-1. Preferred Properties: The thickness of negative electrode active material layer is 20-45 mu m. The diameter of negative electrode active material and positive electrode active material is 20 Angstrom or more, each, measured by Barrett-Joyner-Halenda method. The specific surface area of activated carbon is 1500-3000 m2/g or less, measured by BET method.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: The negative electrode active material layer contains aromatic compound of formula: H3CO-X7. The nonaqueous electrolyte solution contains 0.25-20 %mass sultone compound of formula (IX)-(XI). The compound (IX) is preferably 1,3-propane sultone, 2,4-butane sultone, 1,4-butane sultone, 1,3-butane sultone and/or 2,4- pentane sultone. The compound (X) is preferably 1,3-propene sultone and/or 1,4-butene sultone. The compound (XI) is preferably 1,5,2,4-dioxa dithiepane 2,2,4,4-tetra-oxide. The nonaqueous electrolyte solution contains phosphazene compound of formula (XII). The non-cyclic fluorine-containing ether of formula: R"1-O-R"2, cyclic carbonate containing fluorine atom, or vinylene carbonate.X7=-(COO)nLi or C2H5O-X8;X8=-(COO)nLi;n=0 or 1;R'1-R'6=H, halo, or 1-12C alkyl optionally containing halo;n'=0-3;X=fluoro, alkoxy or aryloxy;andR"1,R"2=2-6C fluoroalkyl.