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US 2024/0258501 A1Published application
Positive active material for rechargeable lithium battery, preparing method thereof, and rechargeable lithium battery including the same
AssigneeSamsung SDI Co., Ltd.
InventorsYoungsoo KIM, Byungjin CHOI, Suk-Gi HONG, Changwook LEE, Jinhwan PARK, Dong Hee YEON
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Abstract
Provided are a positive active material for a rechargeable lithium battery including a single particle including a lithium nickel-based composite oxide, and a coating portion disposed on a surface of the single particle and containing S and Si, a preparing method thereof, and a rechargeable lithium battery including the same.
Claims20
A positive active material for a rechargeable lithium battery, comprising
- a single particle including a lithium nickel-based composite oxide, and
- a coating portion disposed on a surface of the single particle and containing S and Si.
A method of preparing a positive active material for a rechargeable lithium battery, comprising
- mixing a precursor including a nickel-based transition metal hydroxide, a nickel-based transition metal oxide, or a combination thereof;
- a lithium raw material;
- a flux agent including an alkali metal sulfate;
- and silica and performing first heat treatment, and
- obtaining a positive active material including a single particle including a lithium nickel-based composite oxide and a coating portion disposed on the surface and containing S and Si.
2 more elements
Dependencies are inferred from the claim text.