Cathode active materials for lithium-ion batteries
Compounds, powders, and cathode active materials that can be used in lithium ion batteries are described herein. Methods of making such compounds, powders, and cathode active materials are described.
1. A compound represented by Formula (III):
Li α Co 1-x M x Al γ O δ
wherein M is Mn,
0.95≤α≤1.10,
0.001<x<0.07
0.001≤γ≤0.05, and
1.95≤δ≤2.60.
2. A powder comprising particles, said particles comprising the compound according to claim 1 .
3. The compound according to claim 1 , wherein 0.95≤α≤0.98.
4. The compound according to claim 1 , wherein 1.98≤δ≤2.04.
5. The compound of claim 1 , wherein 0.01≤γ≤0.03.
6. The compound of claim 1 , wherein 0.02≤γ≤ 0 . 03 .
7. The compound of claim 1 , wherein 0.002≤γ≤0.004.
8. The compound of claim 1 , wherein 0.001≤γ≤0.005.