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US 12,719,046 B2Granted
Positive electrode including positive electrode additive for lithium secondary battery
AssigneesLG Energy Solution, Ltd., Sookmyung Women's University Industry-Academic Cooperation Foundation
InventorsChi Ho Jo, Wang Mo Jung, Won Hee Ryu, You Jin Kim, Su Ji Kim
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Abstract
A positive electrode with excellent life characteristics and high capacity is provided by using a positive electrode additive of ZrO2-x (0<x<2) to complement structural stability of a high-nickel positive electrode active material. A method of preparing the same, and a lithium secondary battery including the positive electrode are also provided.
Claims13
A positive electrode comprising:
- a positive electrode active material layer including a positive electrode active material, a conductive agent, a binder, and a positive electrode additive,
- wherein the positive electrode additive is ZrO2-x, wherein 0<x<2.
A method of preparing a positive electrode, the method comprising:
- preparing ZrO2-x (0<x<2) by reducing a precursor containing zirconium (Zr);
- preparing a positive electrode slurry by mixing the ZrO2-x, as a positive electrode additive, with a positive electrode active material, a conductive agent, and a binder;
- and
- preparing a positive electrode active material layer by using the positive electrode slurry.
1 more element
Dependencies are inferred from the claim text.