Positive Electrode Active Material for Lithium Secondary Battery, Method for Preparing the Same, and Positive Electrode and Lithium Secondary Battery Comprising the Same
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United States of America Patent
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Issued Date -
Feb 8, 2024
app pub date -
Dec 15, 2021
filing date -
Dec 24, 2020
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Abstract
A positive electrode active material for a lithium secondary battery includes a secondary particle having an average particle size (D50) of 1 to 10 μm formed by agglomeration of at least two primary macro particles having an average particle size (D50) of 0.5 to 3 μm; and a coating layer of lithium-metal oxide formed on a surface of the secondary particle. The primary macro particle is represented by LiaNi1-b-c-dCobMncQdO2+δ, wherein 1.0≤a≤1.5, 0
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