NOVELTY - A non-aqueous-electrolyte secondary battery comprises positive electrode which has positive electrode active material, negative electrode which has negative electrode active material, and non-aqueous electrolyte which are accommodated in a battery case. Non-aqueous electrolyte contains sulfonic acid compound and vinylene carbonate compound which have triple bond at least during battery assembly and film derived from sulfonic acid compound is formed on surface of positive electrode active material at 3.3-7.9 mu mol of unit surface area (1 m2) contact of the positive electrode active material.    USE - A non-aqueous-electrolyte secondary battery for plug-in hybrid motor vehicle (PHV), hybrid vehicle (HV), electric vehicle (EV), electric truck, bicycle with motor, electric-power-assisted bicycle, electric wheelchair, and electric railway.    ADVANTAGE - Battery has reduced internal resistance and can exhibit higher battery characteristic.    DETAILED DESCRIPTION - A non-aqueous-electrolyte secondary battery comprises positive electrode which has positive electrode active material, negative electrode which has negative electrode active material, and non-aqueous electrolyte which are accommodated in a battery case. Non-aqueous electrolyte contains sulfonic acid compound and vinylene carbonate compound which have triple bond at least during battery assembly, film derived from sulfonic acid compound is formed on surface of positive electrode active material at 3.3-7.9 mu mol of unit surface area (1 m2) contact of the positive electrode active material, composite film derived from sulfonic acid compound and vinylene carbonate compound is formed on surface of negative electrode active material at 4.2-6.9 mu mol of unit surface area (1 m2) contact of the negative electrode active material, and film derived from vinylene carbonate compound has ratio of 2.2-6.9 mu mol with respect to 1 mu mol of films derived from sulfonic acid compound. An INDEPENDENT CLAIM is included for manufacture of non-aqueous-electrolyte secondary battery which involves accommodating positive electrode, negative electrode, and non-aqueous electrolyte in a battery case to assemble a battery and performing charge process so that voltage between positive electrode and negative electrode may become a predetermined value.    DESCRIPTION OF DRAWING(S) - The drawing shows schematic diagram of the manufacturing method of the battery detailing the reaction of the positive-negative electrode in a charge process. (Drawing includes non-English language text).