NOVELTY - A non-aqueous electrolyte secondary battery consist of anode, non-aqueous electrolyte, isolation film (4) and cathode containing active material which occludes and discharges lithium. The anode contains lithium complex oxide (A) and lithium complex oxide (B) as active material.    USE - Non-aqueous electrolyte secondary battery used as lithium ion secondary battery for electronic devices such as mobile tools, electrical driven driver, electric vehicles, mobile telephone and notebook personnel computer.    ADVANTAGE - The non-aqueous electrolyte secondary battery is safe and has excellent capacity, charge-and-discharge characteristics and cyclic characteristics even at high-temperature.    DETAILED DESCRIPTION - A non-aqueous electrolyte secondary battery consist of anode, non-aqueous electrolyte, isolation film (4) and cathode containing active material which occludes and discharges lithium. The anode contains lithium complex oxide (A) and lithium complex oxide (B) as active material. The lithium complex oxide (A) is of formula: LixCoO2. The lithium complex oxide (B) is of formula: LixNiyCozM1-y-zO2, , where M is magnesium, barium, aluminum, titanium, strontium, calcium, vanadium, iron, copper, bismuth, yttrium, zirconium, molybdenum, technetium, ruthenium, tantalum, tungsten and rare-earth element(s), preferably aluminum, x is 0.9-1.2, y is 0.3-0.9, z is 0.05-0.5 and 1-y-z is 0.01-0.3. The anode further contains lithium complex oxide (C) chosen from magnesium, aluminum, titanium, strontium, manganese, nickel, calcium, vanadium, iron, copper, bismuth, yttrium, zirconium, molybdenum, technetium, ruthenium, tantalum, tungsten, rare-earth element, ytterbium, zinc and barium. The isolation film is porous membrane containing heat-resistant resin containing chlorine, laminated film of heat-resistant resin and porous polyolefin or laminated film of heat-resistant resin, filler and porous polyolefin. The heat-resistant resin is aramid and/or polyamidoimide.    DESCRIPTION OF DRAWING(S) - The drawing shows sectional view of non-aqueous electrolyte secondary battery.    Anode plate (2)    Cathode plate (3)    Isolation film (4)    Electrode group (5)    Battery case (6)