METHODS FOR PREPARING NICKEL-COBALT-ALUMINUM PRECURSOR MATERIAL AND CATHODE MATERIAL WITH GRADIENT DISTRIBUTION OF ALUMINUM ELEMENT

Provided are methods for preparing a nickel-cobalt-aluminum precursor material and a cathode material with a gradient distribution of aluminum element. The precursor material and the cathode material based on the precursor material prepared by the methods are of sphere or sphere-like shapes in which...

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Hauptverfasser: CHEN, Ruixiang, YUAN, Changjie, LUO, Hongjun, ZHANG, Zheng, HUANG, Dianhua, YAN, Liang, WU, Ceng, TAN, Chaopu
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:Provided are methods for preparing a nickel-cobalt-aluminum precursor material and a cathode material with a gradient distribution of aluminum element. The precursor material and the cathode material based on the precursor material prepared by the methods are of sphere or sphere-like shapes in which the distribution of the aluminum element is changed in a gradient manner, and the particle size distribution is uniform. The synthesized material has a high tap density, is not sensitive to ambient carbon dioxide and moisture, and has a good processability, a high specific capacity and a good stability property.