NOVELTY - The lithium ion secondary battery comprises a positive electrode (104), a negative electrode (102), and a separator (106). The positive electrode comprises a first lithium intercalation composition, 92 wt.% of positive electrode active material, 0.1-5 wt.% of electrically conductive agents, and 1-6 wt.% of polymer binder comprising polyvinylidene fluoride, and has a density of 2.5 g/mL. The negative electrode comprises a second lithium intercalating composition, and has a thickness of 65-200 microns on a single side of a current collector (108, 110).    USE - The lithium ion secondary battery is useful in: mobile communication devices such as cellular phones; mobile entertainment devices such as MP3 players and televisions; portable computers such as lap-top computers; and transportation devices such as automobiles including electric vehicles and plug in hybrid electric vehicles and fork lifts.    ADVANTAGE - The lithium ion secondary battery exhibits high total energy, energy density and specific discharge capacity, improved performance and stability, and long service life, and is less expensive and safe.    DETAILED DESCRIPTION - The lithium ion secondary battery comprises a positive electrode (104), a negative electrode (102), and a separator (106). The positive electrode comprises a first lithium intercalation composition, 92 wt.% of positive electrode active material, 0.1-5 wt.% of electrically conductive agents, and 1-6 wt.% of polymer binder comprising polyvinylidene fluoride, and has a density of 2.5 g/mL. The negative electrode comprises a second lithium intercalating composition, and has a thickness of 65-200 microns on a single side of a current collector (108, 110). The separator is positioned between the positive and negative electrodes. The polymer binder has an average molecular weight of 1000000-5000000 atomic mass units. The battery has a discharge energy density of 250-550 Wh/kg when discharged from 2-4.6 V and a volumetric discharge energy density of 550 Wh/l. The first lithium intercalation composition comprises 0.1-10 mol% of metal fluoride as a coating. The electrically conductive material comprises graphite, carbon black, metal powders, and/or metal fibers. The electrodes are separated by separators within a casing. The electrodes and separators are stacked, jelly-rolled or folded inside the casing. The casing comprises a polymeric film and/or a metallic foil, and has a prismatic shape. The positive electrode active material has a specific capacity of 225 mAh/g at 10th cycle when discharged from 4.6 V.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of a battery structure.    Negative electrode (102)    Positive electrode (104)    Separator (106)    Current collectors. (108, 110)