NOVELTY - A lithium ion battery positive electrode material (M1) comprises active composition of lithium oxide compound, coated with an inorganic coating composition, where the coating composition comprises a metal/metalloid fluoride.    USE - As lithium ion battery positive electrode material used in battery (i.e. lithium ion battery) (claimed) for mobile communication devices (such as phones), mobile entertainment devices (e.g. televisions), portable computers, for vehicle applications (such as in battery packs for hybrid vehicles, plug-in hybrid vehicles and purely electric vehicles).    ADVANTAGE - The lithium ion battery positive electrode material has a specific capacity of 245 mAh/g with a discharge rate of C/3 when discharged from 4.6-2 volts at room temperature; or has a discharge specific capacity of 190 mAh/g with a discharge rate of 2 C from 4.6-2 volts at room temperature for the fifteenth charge/discharge cycle; or has a discharge specific capacity of 245 mAh/g, an average voltage of 3.55 volts and a capacity at 40 cycles that is at least 90% of the capacity at 10 cycles with a discharge rate of C/3 from 4.6-2 volts at room temperature; or has a specific capacity of 250 mAh/g with a discharge rate of C/3 from 4.6-2 volts at room temperature. The irreversible capacity loss is reduced by at least 10% relative to the irreversible capacity loss of an equivalent battery formed with an uncoated positive electrode active material. The lithium ion battery exhibits a capacity at 40 cycles that is at least 95% of the capacity at 10 cycles with a discharge rate of C/3 from 4.6-2 volts at room temperature.    DETAILED DESCRIPTION - A lithium ion battery positive electrode material (M1) comprises active composition of lithium oxide compound of formula Li1+xM1-xO2 (I), coated with an inorganic coating composition, where the coating composition comprises a metal/metalloid fluoride.    M=metal element or its combination;    x=0.01-0.3.    An INDEPENDENT CLAIM is included for a battery comprising the positive electrode material (M1) and a non-aqueous electrolyte containing lithium ions.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic of the battery structure separated from a container.