NOVELTY - A non-aqueous electrolyte solution comprises electrolyte dissolved in non-aqueous solvent.    USE - A non-aqueous electrolyte solution for non-aqueous electrolyte solution secondary battery (claimed) used for electronic devices, such as laptop computer, electronic book player, mobile telephone, portable facsimile machine, portable copy, portable printer, portable audio player, small video camera, liquid crystal television, handy cleaner, transceiver, electronic organizer, calculator, memory card, portable tape recorder, radio, backup power supply, motor vehicle, motorbike, bicycle with motor engine, bicycle, lighting fixture, toy, game machine device, timepiece, electric tool, electronic flash, and camera.    ADVANTAGE - Low-temperature direct current resistance after high temperature preservation of battery is reduced, and low-temperature output after high temperature preservation is increased.    DETAILED DESCRIPTION - A non-aqueous electrolyte solution comprises electrolyte dissolved in non-aqueous solvent consists of compound containing salt of formula (1), salt which has FS(=O)2-structure in anionic species, compound of formula R2(W2)e (2), and compound of formula (3).    M1=13-group element, 14-group element, or 15-group element of transition metal;    X1, Y1=-C(=O)- or -S(=O)2-;    Z=1-group element, 2-group element, or aluminum;    Rh=halo, halogenoalkyl group, or halogenated aryl group;    R1=hydrocarbon group consists of less than or equal to 6C hetero element;    a-d, l1=1-3;    m1=0-6;    n1=0 or 1;    R2=hydrocarbon group consists of less than or equal to 15C hetero element;    W2=functional group of molecular weight less than or equal to 50 with multiple bond between C-N;    e=1-4;    R3=H or less than or equal to 10C hydrocarbon group; and    R4= less than or equal to 10C hydrocarbon group.    An INDEPENDENT CLAIM is included for non-aqueous electrolyte solution secondary battery containing positive electrode which discharges lithium ion, negative electrode which discharges lithium ion, and non-aqueous electrolyte solution.