High energy cathodes for lithium ion batteries
An electrode includes a material represented by Li 1-x M x CoO 2-d where 0<x≤0.2 and 0≤d≤0.2. The variable M includes a metal selected from the group consisting of transition metals, Group I elements, and Group II elements.
1. An electrode, comprising:
a material represented by Li 1-x M x CoO 2-d where 0<x≤0.2 and 0≤d≤0.2;
wherein M comprises a metal selected from the group consisting of transition metals, Group I elements, and Group II elements.
2. The electrode of claim 1 , wherein M is present in a lithium site of the material.
3. The electrode of claim 1 , wherein M is magnesium.
4. The electrode of claim 1 , wherein M is zirconium.
5. The electrode of claim 1 , wherein M is niobium.
6. The electrode of claim 1 , wherein M is sodium.
7. The electrode of claim 1 , wherein 0<x≤0.1.
8. The electrode of claim 1 , wherein 0<x≤0.05.
9. The electrode of claim 1 , wherein d is 0.
10. A battery comprising:
an anode;
a cathode; and
an electrolyte between the anode and the cathode, wherein the cathode comprises an active material represented by Li 1-x M x CoO 2-d , where 0<x≤0.2, 0≤d≤0.2, and M comprises a metal selected from the group consisting of transition metals, Group I elements, and Group II elements.
11. The battery of claim 10 , wherein M is present in a lithium site of the active material of the cathode.
12. The battery of claim 10 , wherein M is magnesium.
13. The battery of claim 10 , wherein M is zirconium.
14. The battery of claim 10 , wherein M is niobium.
15. The battery of claim 10 , wherein M is sodium.
16. The battery of claim 10 , wherein 0<x≤0.1.
17. The battery of claim 10 , wherein the material comprises Li 0.95 Zr 0.05 CoO 2 .
18. The battery of claim 10 , wherein the material comprises Li 0.99 Mg 0.01 CoO 2 .
19. The battery of claim 10 , wherein the anode comprises lithium foil, and the electrolyte comprises a lithium salt and at least one carbonate.
20. The battery of claim 10 , wherein d is 0.