| 摘要 |
Disclosed are a transition metal precursor for preparation of a lithium composite transition metal oxide, the transition metal precursor including a composite transition metal compound represented by Formula 1 below and a hydrocarbon compound, and a method of preparing the same:
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒMn a M b (OH 1-x ) 2 €ƒ€ƒ€ƒ€ƒ€ƒ(1)
wherein M is at least two selected from the group consisting of Ni, Co, Mn, Al, Cu, Fe, Mg, B, Cr, and second period transition metals; 0.4‰¤a‰¤1; 0‰¤b‰¤0.6; a+b‰¤1; and 0<x<0.5. The transition metal precursor includes a particular composite transition metal compound and a hydrocarbon compound, and thus, when a lithium composite transition metal oxide is prepared using the same, carbon may be present in lithium transition metal oxide particles and/or on surfaces thereof, whereby a secondary battery including the lithium composite transition metal oxide exhibits excellent rate characteristics and long lifespan. |
