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Lithium battery ternary cathode material batching method

A cathode material, lithium battery technology, applied in the field of materials, can solve the problems of long test process time, long production line waiting time, unsuitable for industrial production, etc.

Active Publication Date: 2020-05-08
ZHONGTIAN EMERGING MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the industry, the uniformity is verified by multi-point testing of lithium to metal content values. The testing process takes a long time, usually more than 2 hours, and the production line has a long waiting time, which is not suitable for industrial production.

Method used

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  • Lithium battery ternary cathode material batching method
  • Lithium battery ternary cathode material batching method
  • Lithium battery ternary cathode material batching method

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Embodiment Construction

[0038] In order to more clearly understand the above objects, features and advantages of the embodiments of the present invention, the following specific embodiments describe the present invention in detail. It should be noted that, in the case of no conflict, the features in the embodiments of the present application may be combined with each other.

[0039] In the following description, many specific details are set forth in order to fully understand the embodiments of the present invention, and the described implementations are only part of the implementations of the present invention, but not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the embodiments of the present invention.

[0040] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly unders...

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Abstract

The invention provides a burdening method of a ternary positive electrode material of a lithium battery. A ternary precursor and other materials are insoluble in water, and lithium carbonate can be quickly dissolved in water, so the content of lithium carbonate in a mixture is quickly detected, the uniformity of the mixture is judged through standard deviations among three points, and accurate proportioning is guided and controlled in combination with the relationship between the deviation of a measured value and a theoretical value and the battery capacity, so that the ternary cathode material of the lithium battery with good performance is obtained.

Description

technical field [0001] The invention relates to the field of material technology, in particular to a compounding method for a lithium battery ternary positive electrode material. Background technique [0002] Lithium-ion batteries made of ternary cathode materials have the advantages of light weight, small size, large capacity, long cycle life, and no memory effect, so they are widely used in mobile electronic devices such as mobile phones and notebook computers, and are also used in artificial satellites. , electric vehicles, aerospace and other fields. [0003] Since the key process in the preparation process of the lithium-ion battery ternary cathode material is mixing, the mixing of the ternary precursor and lithium carbonate, uneven mixing will affect the consistency of the material. In the case of ensuring uniform mixing, it will not only improve The stability and high temperature performance of the material are improved, and the electrochemical performance of the mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/505H01M4/525H01M10/0525
CPCH01M4/505H01M4/525H01M10/0525H01M2004/028Y02E60/10
Inventor 朱玲玲战鹏方秀利
Owner ZHONGTIAN EMERGING MATERIALS CO LTD