NOVELTY - A nonaqueous electrolyte secondary battery (10) consists of a positive electrode containing active material, negative electrode containing active material, and electrolyte solution. The active material of positive electrode is formed using a lithium-nickel-cobalt-manganese composition (I). A phosphorus compound formed using lithium hydrogen fluorophosphate composition (II) is provided on surface of the positive electrode active material.    USE - Nonaqueous electrolyte secondary battery e.g. lithium ion secondary battery. Uses include but are not limited to hybrid vehicle, electric vehicle, fuel-cell vehicle, hybrid fuel cell electric vehicle, portable electronic device, plug-in hybrid electric vehicle, commercial vehicle e.g. passenger car, truck and bus, electric train, uninterruptible power supply, etc.    ADVANTAGE - The nonaqueous electrolyte secondary battery has excellent charge/discharge capacity. The device and vehicles using the battery have excellent durability.    DETAILED DESCRIPTION - A nonaqueous electrolyte secondary battery consists of positive electrode containing active material, negative electrode containing active material, and electrolyte solution. The active material of positive electrode is formed using the composition of formula: Li1.5(NiaCobMnc(Li)d)O3 (I), where a-c is 0-1.4, d is 0-5, a+b+c+d is 1.5, and a+b+c 1-1.5. The phosphorus compound formed using the composition of formula: LieHfPOgFh (II) is provided on surface of the positive electrode active material, where e is 3 or less, f is integer, h is 1 or more, and g is number of oxygen atoms required to satisfy valence of each component.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic sectional view of the nonaqueous electrolyte secondary battery.    Nonaqueous electrolyte secondary battery (10)    Anode Collector (11)    Positive electrode electrical power collector (12)    Negative electrode active material layer (13)    Positive electrode active material layer (15)