Surface stabilized cathode material for lithium ion batteries and synthesizing method of the same
A compound represented by Li a Co (1-x-2y) Me x (M1M2) y O δ , (Formula (I)) wherein Me, is one or more of Li, Mg, Al, Ca, Ti, Zr, V, Cr, Mn, Fe, Ni, Cu, Zn, Ru and Sn, and wherein 0≤x≤0.3, 0<y≤0.4, 0.95≤α≤1.4, and 1.90≤δ≤2.10 is disclosed. Further, particles including such compounds are described.
1. A compound represented by Formula (II):
Li a Co (1-2y) (M/M2) y O δ Formula (II)
wherein M1 is Ni;
wherein M2 is Ti;
wherein M1M2 represents metal pairs of M1 and M2; and
wherein 0<y≤0.4, 0.95≤α≤1.4, and 1.90≤δ≤2.10.
2. The compound of claim 1 , wherein 0<y≤0.25.
3. The compound of claim 1 , wherein 0.02≤y≤0.06.
4. The compound of claim 1 , wherein 0.05≤y≤0.09.
5. The compound of claim 1 , wherein 0.08≤y≤0.12.
6. The compound of claim 1 , wherein 0.14≤y≤0.18.
7. The compound of claim 1 , wherein 0.20≤y≤0.25.
8. A cathode active material comprising the compound of claim 1 .
9. A cathode comprising a cathode current collector and the cathode active material according to claim 8 disposed over the cathode current collector.
10. A battery cell comprising:
an anode comprising an anode current collector and an anode active material disposed over the anode current collector and
the cathode of claim 9 .
11. A portable electronic device comprising:
the battery cell of claim 10 .