CATHODE ACTIVE MATERIALS AND THEIR PREPARATION METHODS
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United States of America
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Feb 6, 2025
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Oct 4, 2024
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Oct 4, 2024
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Abstract
The method for manufacturing a positive electrode active material according to the present invention comprises the steps of: constructing positive electrode active material precursor particles containing nickel; preparing a lithium source; and mixing the positive electrode active material precursor particles and the lithium source, followed by heat-treatment to produce a positive electrode active material in which a plurality of primary particles are agglomerated, wherein the generation rate of the primary particles of the positive electrode active material is controlled by controlling the sizes of the positive electrode active material precursor particles during the heat-treatment step.
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