Nickel-cobalt-manganese net-shaped structure precursor, nickel-cobalt-manganese composite oxide powder as well as preparation method and application thereof

A technology of composite hydroxide and network structure, which is applied in the field of materials, can solve the problems that the power performance of materials cannot be effectively exerted, and the efficiency of first charge and discharge is low.
CN112142123AActive Publication Date: 2020-12-29XTC NEW ENERGY MATERIALS(XIAMEN) LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
XTC NEW ENERGY MATERIALS(XIAMEN) LTD
Publication Date
2020-12-29

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Abstract

The invention belongs to the field of materials, and relates to a net-shaped structure precursor and composite oxide powder as well as a preparation method and application thereof. The net-shaped structure precursor comprises a loose core and a loose shell layer coating the surface of the loose core, the main component of the loose core is divalent nickel-cobalt-manganese composite hydroxide, themain component of the loose shell layer is trivalent nickel-cobalt-manganese composite hydroxide, and the particle size of the nickel-cobalt-manganese net-shaped structure precursor is 2-30 [mu] m. According to a lithium ion battery corresponding to the net-shaped structure precursor, under the condition of low temperature (-10 DEG C), the first charge-discharge efficiency of 0.2 C is greater thanor equal to 95%, the first charge-discharge efficiency of 10C is greater than or equal to 92%, the low-temperature power performance can be improved, and a great industrial application prospect is achieved.
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Description

technical field

[0001] The invention belongs to the field of materials, and in particular relates to a precursor of nickel-cobalt-manganese network structure, nickel-cobalt-manganese composite oxide powder and a preparation method and application thereof. Background technique

[0002] With the application of lithium-ion batteries in electric vehicles, lithium-ion battery cathode materials have received extensive attention. The performance of lithium-ion battery cathode materials directly affects the use and promotion of electric vehicles, and the development of high-endurance, high-safety, low-cost The cathode material is the main direction of future development. The main directions of vehicle-mounted cathode materials are lithium iron phosphate, multi-component materials, and lithium manganese oxide. Among them, lithium iron phosphate is widely used in the EV market due to its high safety, long cycle and low cost. With the advancement of technology, multi-component materi...

Claims

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