Positive electrode active material for secondary battery, method of preparing the same, and lithium secondary battery including the positive electrode active material
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United States of America
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Mar 18, 2025
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Apr 10, 2020
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Apr 10, 2020
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Abstract
A positive electrode material for a secondary battery and a method of making the same is disclosed herein. In some embodiments, a positive electrode active material includes a lithium composite transition metal oxide including nickel (Ni), cobalt (Co), and manganese (Mn), wherein the lithium composite transition metal oxide includes 60 mol % or more of the nickel (Ni) among metals excluding lithium, and a coating layer is formed on surfaces of particles of the lithium composite transition metal oxide, wherein the coating layer includes a lithium-polymer compound which is formed by a reaction of a lithium by-product with a polymer.
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