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US 2022/0069301 A1Published application
Positive active material for an all-solid-state battery, method of preparing the same, and all-solid-state battery
AssigneeSamsung SDI Co., Ltd.
InventorPilsang YUN
Life of this patent
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Abstract
A positive active material for an all-solid-state battery, a method of preparing the same, and an all-solid-state battery including the same. The positive active material includes a secondary particle in which a plurality of primary particles is aggregated and at least a portion of the primary particles is arranged radially, and includes a first boron coating portion on a surface of the secondary particle, and a second boron coating portion on a surface of the primary particles inside the secondary particle.
Claims21
A positive active material for an all-solid-state battery, the positive active material comprising:
- a lithium nickel-based composite oxide, wherein the positive active material comprises a secondary particle in which a plurality of primary particles is aggregated, and at least a portion of the primary particles is arranged radially;
- a first boron coating portion on a surface of the secondary particle;
- and
- a second boron coating portion on a surface of the primary particles in an interior of the secondary particle.
1 more element
Dependencies are inferred from the claim text.