TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Properties: The ion conductivity of the electrolyte at 25 degrees C is preferably 50 millisecond/cm or less. The porosity of the electrode active material layer contained in the electrode(s) of the positive electrode or negative electrode is 20-45%. Preferred Composition: The amount of positive electrode active material layer in the positive electrode and the amount of negative electrode active material layer in the negative electrode is preferably 24-100 mg/cm2 and 10-46 mg/cm2, respectively. The electrolyte solution further contains cyclic carbonate having carbon-carbon double bond. The lithium salt is inorganic lithium salt containing fluorine, preferably lithium hexafluorophosphate or lithium tetrafluoroborate. The content of the inorganic lithium salt in non-aqueous secondary battery is 0.1-40 %mass with respect to total amount of electrolyte solution. The positive electrode contains materials discharging lithium ion or lithium-containing compound as positive electrode active material. The negative electrode contains metallic lithium materials discharging lithium ion, metallic lithium, carbon material or material containing lithium alloy as negative electrode active material. The lithium-containing compound is chosen from metal chalcogenide containing lithium metal oxide. The positive electrode and/or negative electrode are coated with positive electrode active material layer and/or negative electrode active material layer on the electrode substrate coated on conductive layer. The conductive layer contains electroconductive material on the electrode collector, and binder. The negative electrode contains material which can occlude lithium ion and having electric potential of more than 1.4 V vs.Li/Li+ as negative electrode active material.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: The nonaqueous solvent is nitrile-type solvent containing 5-97 vol.%, preferably 25-80 vol.% acetonitrile. The nonaqueous secondary battery further contains organic lithium salt. The molar ratio of organic lithium salt and inorganic lithium salt is 0-1 (excluding 1). The organic lithium salt is chosen from lithium bis(oxalato)borate and lithium difluoro(oxalate)borate. The electrolyte solution contains acetonitrile, lithium salt and bivalent group-containing compound of formula: R1-A-R2 (I). The bivalent group-containing compound (I) contains compounds chosen from ethylene sulfite, propylene sulfite, butylene sulfite, pentene sulfite, sulfolane, 3-methyl-sulfolane, 3-sulfolene, 1,3-propane sultone, 1,4-butane sultone, 1,3-propanediol sulfuric ester and tetramethylene sulfoxide. The positive mix of positive electrode preferably contains organic acid or organic acid salt having more than bivalence.R1,R2=alkyl optionally substituted by aryl or halo, aryl optionally substituted by halo or alkyl;R1+R2=ring optionally having unsaturated bond with A;andA=bivalent group of formula: -S(=O)-O-, -S(=O)(=O)-, -S(=O)(=O)-O-, -O-S(=O)(=O)-O- or group of formula (i).Preferred Property: The thickness of the positive electrode active material layer produced from positive mix is 50-300 mu m. Preferred Process: The primary charging is performed through constant voltage charge.