NOVELTY - The lithium secondary battery has a negative electrode, which comprises a lithium-vanadium based oxide represented by formula (I). A carbon based material is coated on surface, which is capable of intercalating and deintercalating lithium ion. A positive electrode of positive electrode active material capable of intercalating and deintercalating lithium ion is also present. An electrolyte, which comprises a monomer with one reactive double bond, 0.7-2M of a lithium salt and a non aqueous organic solvent are also provided.    USE - Lithium secondary battery.    ADVANTAGE - The lithium secondary battery lowers the reactivity of a negative electrode, stabilizes the surface by forming a polymer layer on a negative electrode, inhibits the side reaction at the interface between the negative electrode and electrolyte, thus improves lifetime of a battery.    DETAILED DESCRIPTION - The lithium-vanadium based oxide having formula (I) is new. LixMyVzO2+d Formula (I)    x=0.1-2.5;    y=0-0.5;    z=0.5-1.5;    d=0-0.5; and    M=a metal.    The monomer has formula (II),    n=1-10;    R1=H or alkyl;    R2=alkyl;    R3=alkyl or alkoxy;    R4=H or alkyl; and    R5=H or alkyl.    The aromatic family hydrocarbon based solvent has formula (III),R6, R7, R8, R9, R10, R11=hydrogen, halogen, alkyl group or halo alkyl group.    The anodic active material has formulae (IV-XXVIII), LiaA1-bBdD2 (IV) LiaE1-bBbO2-cFc (V) LiCo2-bO4-cFc (VI) LiMn2-bO4-cFc (VII) LiaNi1-b-cCobBcDh (VIII) LiaNi1-b-cCobO2-hFh (IX) LiaNi1-b-cCobO2-hF2 (X) LiaNi1-b-cMnbBcDh (XI) LiaNi1-b-cMnbO2-hF (XII) LiaNi1-b-cMnbO2-hF2 (XIII) LiaNibEcGdO2 (XIV) LiaNibCocMndGeO2 (XV) LiaNiGbO2 (XVI) LiaCoGbO2 (XVII) LiaMnGbO2 (XVIII) LiaMn2GbO4 (XIX) HO2 (XX) HS2 (XXI) LiHS2 (XXII) V2O5 (XXIII) LiV2O5 (XXIV) LiIO2 (XXV) LiNiVO4 (XXVI) Li(3-f)J2(PO4)3 (XXVII) Li(3-f)Fe2(PO4)3 (XXVIII) In formulae (IV, V, VI, VII, VIII, IX, X, XI, XII, XIII),    a=0.95-1.1;    b=0-0.5;    c=0-0.05; and    h=0-2.    In formula (XIV),    a=0.9-1.1;    b=0-0.9;    c=0-0.5; and    d=0.001-0.1.    In formulae (XV),    a=0.9-1.1;    b=0-0.9;    c=0-0.5;    d=0-0.5; and    e=0.001-0.1.    In formulae (XVI, XVII,XVIII,XIX),    a=0.9-1.1;    b=0.001-0.1.    In formula (XXVII),f=0-3.    In formula (XXVIII),    f=0-2.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of lithium secondary battery.    Lithium secondary battery (1)    Cathode (2)    Anode (3)    Separator (4)    Battery retainer (5)    Encapsulation member (6)