Ni-Co-Al-Mg composite hydroxide, preparation method and application thereof

A composite hydroxide, nickel-cobalt-aluminum-magnesium technology, applied in nickel oxide/nickel hydroxide, electrochemical generators, electrical components, etc., can solve problems affecting the consistency of positive electrode materials and uneven distribution of doping elements. Achieve the effects of improved consistency, simple process, and reduced potential energy
CN106571464AInactive Publication Date: 2017-04-19JINGMEN GEM NEW MATERIAL
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
JINGMEN GEM NEW MATERIAL
Publication Date
2017-04-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a preparation method of a Ni-Co-Al-Mg composite hydroxide, wherein the method includes the steps of: performing a reaction to a raw material being a mixed salt solution of nickel, cobalt, aluminum and magnesium with urea as a precipitation and complexation agent in a hydrothermal reaction kettle at 100-180 DEG C for 12-48 h to prepare Ni-Co-Al-Mg composite hydroxide; and washing and drying the Ni-Co-Al-Mg composite hydroxide. By means of the method, aluminum ions can be uniformly co-precipitated with nickel, cobalt and magnesium ions within the same pH range, thus producing the a Ni-Co-Al-Mg precursor having stable ingredient and distribution and used for a lithium ion battery.
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Description

technical field

[0001] The invention belongs to the technical field of battery material preparation, and in particular relates to a nickel-cobalt-aluminum-magnesium composite hydroxide and a preparation method and application thereof. Background technique

[0002] Lithium-ion power batteries have attracted great attention due to their good characteristics such as high specific energy, high safety, and renewability. In particular, the global development and popularization of the automobile industry provides broad prospects for the development of electric vehicles, which will bring great demand for the positive electrode materials and precursors for power lithium-ion batteries used in them. Vehicle power battery materials should be as consistent as possible (such as small differences in elemental composition, particle size distribution, tap density, etc. of different batches of products). Minor differences in power battery materials will lead to differences in their performanc...

Claims

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