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Preparation method of nickel-cobalt-manganese ternary material and lithium ion battery

A ternary material, nickel-cobalt-manganese technology, applied in battery electrodes, secondary batteries, circuits, etc., can solve the problems of low tap density of nickel-cobalt-manganese ternary materials, and achieve low cost, high tap density, and easy operation. The process is convenient and simple

Inactive Publication Date: 2020-06-23
NORTHERN ALTAIR NANOTECH CO LTD +1
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  • Application Information

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Problems solved by technology

[0006] In view of this, one of the objects of the present invention is to provide a method for preparing a nickel-cobalt-manganese ternary material and a lithium-ion battery, so as to solve the problem of the low tap density of the nickel-cobalt-manganese ternary material prepared by the existing preparation method. The problem

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  • Preparation method of nickel-cobalt-manganese ternary material and lithium ion battery
  • Preparation method of nickel-cobalt-manganese ternary material and lithium ion battery
  • Preparation method of nickel-cobalt-manganese ternary material and lithium ion battery

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Embodiment Construction

[0038] The present invention is described below based on the embodiments, and those skilled in the art should understand that the drawings provided here are for the purpose of illustration, and the drawings are not necessarily drawn to scale.

[0039] Unless the context clearly requires, throughout the specification and claims, "comprises", "comprises" and similar words should be interpreted in an inclusive sense rather than an exclusive or exhaustive meaning; that is, "including but not limited to" meaning.

[0040] The application provides a method for preparing a nickel-cobalt-manganese ternary material to increase the tap density of the prepared nickel-cobalt-manganese ternary material without affecting the electrochemical performance and cycle performance of the nickel-cobalt-manganese ternary material. The nickel-cobalt-manganese ternary material with better performance can be obtained by ball milling and spray drying.

[0041] The preparation method of the nickel-cobal...

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Abstract

The invention provides a preparation method of a nickel-cobalt-manganese ternary material and a lithium ion battery. The preparation method comprises the steps of adding nickel hydroxide, cobalt hydroxide and manganese carbonate which are used as raw materials, and lithium carbonate used as a lithium source into deionized water, mixing to obtain a suspension, adding glucose into the suspension, and uniformly stirring to obtain a mixed solution; and pouring the mixed solution into a ball mill for ball milling to obtain a ball-milled suspension. According to the preparation method of the nickel-cobalt-manganese ternary material and the lithium ion battery, the glucose is added in the preparation process of the ternary material, so that the ternary material with high tap density and good sphericity can be obtained under the conditions of not increasing the preparation steps and not influencing the electrochemical performance and cycle performance of the ternary material, the operation process is convenient and simple, the cost is low, the obtained effect is good, and the preparation method is suitable for large-scale popularization and application.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a preparation method of a nickel-cobalt-manganese ternary material and a lithium ion battery. Background technique [0002] At present, the positive electrode materials used in lithium-ion batteries mainly include lithium cobaltate, lithium iron phosphate, lithium manganate and ternary positive electrode materials. Nickel-cobalt lithium manganese oxide ternary cathode material has the advantages of high specific capacity, safety performance and good rate discharge performance. It is a very potential cathode material for lithium-ion power batteries. The field has broad application prospects. [0003] The ternary material combines the advantages of the three elements at the same time through the synergistic effect of the three elements of Ni-Co-Mn. For example, the good cycle performance of LiCoO2, the high specific energy of LiNiO2 and the high safety and low cost of LiMnO2 ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/505H01M4/525H01M10/0525
CPCH01M4/505H01M4/525H01M10/0525Y02E60/10
Inventor 邢红霞王金全马书良成信刚
Owner NORTHERN ALTAIR NANOTECH CO LTD
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