Modified li-Mg-Ni composite oxides and manufacturing method, Li secondary battery and positive electrode active material

The present invention provides a lithium secondary battery positive electrode active material useful modified lithium manganese nickel composite oxide, a method for manufacturing a lithium secondary battery positive electrode active material and excellent cycle characteristics and coulombic efficiency of a lithium secondary battery. The lithium secondary battery wherein the positive electrode active material having: a selected containing Mg, Al, Ti least one or more of the metal oxide coated metal element Zr and Zn, by the following general formula (1) surface of the particles lithium manganese nickel composite oxide, Li x Mn 1.5 Ni 0.5 O 4-w ( 1) (wherein, 0

Keywords:

• Oxide
• Lithium
• Electrode
• Lithium vanadium phosphate battery
• Inorganic chemistry
• Battery (electricity)
• Nickel
• Manganese
• Composite number
• Materials science

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