Kagan Binder, PLLC
High voltage lithium nickel cobalt manganese oxide precursor, method for making the same, and high voltage lithium nickel cobalt manganese oxide cathode material
A high voltage lithium nickel cobalt manganese oxide precursor is provided in the present disclosure. Primary particles of the lithium nickel cobalt manganese oxide precursor are in a clustered “petals” configuration. The “petal” has a sheet shape. A secondary particle of the lithium nickel cobalt manganese oxide precursor has a spherical structure with a loosened interior. A method for making the high voltage lithium nickel cobalt manganese oxide precursor is further provided in the present disclosure. In the method, through the unique design of the reaction atmosphere in combination with advantages of high-low pH phase separation as well as the appropriate matching between the output power and flow rates, the lithium nickel cobalt manganese oxide precursor having “petal-like” and sheet shaped primary particles and spherical and porous secondary particles is made. Compared to the conventional precursor, the primary particle of the present precursor has a unique structure and the secondary particle of the present precursor has a loosened and porous interior, which provide an important guiding significance for a morphology study of small particle sized lithium nickel cobalt manganese oxide precursor and a preparation process optimization. A high voltage lithium nickel cobalt manganese oxide cathode material made from the nickel cobalt manganese oxide precursor has a single-crystal structure.
BASF SHANSHAN BATTERY MATERIALS CO., LTD.
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H01M C01P C01P C01P C01P Y02E C01P H01M C01P C01P C01G C01P C01P C01G C01P C01P C01G
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Xu Hui Jiuhua Min Xinxin Wei
Li Shi Chen Huang Tan Peng