Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of preparation method of nickel-cobalt-aluminum-magnesium oxide coated with carbon material for lithium ion battery

A carbon material coating and lithium-ion battery technology, applied in the field of lithium-ion batteries, can solve problems such as poor electrochemical performance, unstable crystal lattice, and poor safety, and achieve environmental protection, long service life, and low cost Effect

Active Publication Date: 2017-11-10
合肥融捷金属科技有限公司
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when this preparation method is applied to the preparation of nickel-cobalt-aluminum-magnesium oxide, there are disadvantages such as lattice instability, poor electrochemical performance, and poor safety.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method for coating nickel-magnesium-aluminum-cobalt oxide with carbon material for lithium ion battery, comprising the following steps:

[0025] (1) Dissolve nickel salt, cobalt salt, magnesium salt, and aluminum salt in water, add slow control agent, and ultrasonicate for 30 minutes at a power of 800W to obtain mixed solution A;

[0026] (2) The mixed solution A and precipitating agent that step (1) obtains are respectively with 2.5 liters / hour, and the speed of 1.5 liters / hour is added in the reaction vessel and be 9 at pH, react at 60 ℃ of temperature, obtain precipitate, use The precipitate was washed several times with deionized water to obtain a purified precipitate;

[0027] (3) Prepare a 0.8mol / L glucose solution, add the purified precipitate obtained in step (2), ultrasonicate for 1h at a power of 500W, transfer to a hydrothermal kettle, react at 150°C for 4h, cool naturally, and After the reaction, the solution was separated by suction filtratio...

Embodiment 2

[0030] A preparation method for coating nickel-magnesium-aluminum-cobalt oxide with carbon material for lithium ion battery, comprising the following steps:

[0031] (1) Dissolve nickel salt, cobalt salt, magnesium salt, and aluminum salt in water, add slow control agent, and ultrasonicate for 60 minutes at a power of 800W to obtain mixed solution A;

[0032] (2) The mixed solution A and precipitating agent that step (1) obtains are respectively with 6 liters / hour, and the speed of 5.5 liters / hour is joined in reaction vessel and be 14 at pH, react at 85 ℃ of temperature, obtain precipitate, use The precipitate was washed several times with deionized water to obtain a purified precipitate;

[0033] (3) Prepare a 0.8mol / L glucose solution, add the purified precipitate obtained in step (2), ultrasonicate for 2h at a power of 500W, transfer to a hydrothermal kettle, react at 180°C for 10h, cool naturally, and After the reaction, the solution was separated by suction filtration w...

Embodiment 3

[0036] A preparation method for coating nickel-magnesium-aluminum-cobalt oxide with carbon material for lithium ion battery, comprising the following steps:

[0037] (1) Dissolve nickel salt, cobalt salt, magnesium salt, and aluminum salt in water, add slow control agent, and ultrasonicate for 33 minutes at a power of 800W to obtain mixed solution A;

[0038] (2) mixed solution A and precipitating agent that step (1) obtains are respectively with 3.6 liters / hour, and the speed of 2.5 liters / hour joins in the reaction vessel and is 10 at pH, reacts at 63 ℃ of temperature, obtains precipitate, uses The precipitate was washed several times with deionized water to obtain a purified precipitate;

[0039] (3) Prepare a 0.8mol / L glucose solution, add the purified precipitate obtained in step (2), ultrasonicate for 1.1h at a power of 500W, transfer to a hydrothermal kettle, react at 160°C for 5h, and cool naturally. After the reaction, the solution was separated by suction filtration...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a preparation method of carbon material-coated nickel, cobalt, aluminum and magnesium oxide for a lithium ion battery. The method comprises the steps as follows: dissolving nickel salt, cobalt salt, magnesium salt and aluminium salt in water; adding a slow control agent to prepare a mixed solution A; simultaneously adding the mixed solution A and a precipitator in a reaction vessel to react to obtain a precipitate, and cleaning the precipitate for many times; dissolving a certain amount of glucose in the water, and mixing and evenly stirring the obtained solution with the precipitate; reacting at the temperature of 150 to 180 degrees centigrade for 4 to 10 hours; naturally cooling and using a sand core funnel to leach and filter and then using deionized water, and absolute ethyl alcohol to fully clean to obtain a slurry and obtaining the carbon material-coated nickel, cobalt, aluminum and magnesium oxide for the lithium ion battery by heating and performing sub-high temperature processing. The carbon material-coated nickel, cobalt, aluminum and magnesium oxide prepared by the invention is stable in crystal lattice and electrochemical performance, and excellent in battery cycle performance and rate capability while being used as cathode material, safe in safety, and long in service life, and releases no toxic substance in the preparation process so as to be conducive to environmental protection.

Description

Technical field: [0001] The invention relates to the field of lithium-ion batteries, in particular to a preparation method for coating nickel-cobalt-aluminum-magnesium oxide with carbon materials for lithium-ion batteries. Background technique: [0002] With the continuous deterioration of the earth's atmospheric environment, people pay more and more attention to the development of new technologies and processes for clean energy and energy storage materials. Lithium-ion power batteries have attracted great attention due to their good characteristics such as high specific energy, high safety, and renewability. The development and popularization of the special automobile industry among ordinary people around the world, in order to avoid the impact of the exhaust gas produced by gasoline vehicles on the atmosphere, provide a broad prospect for the development of electric vehicles, so that the special performance power lithium-ion batteries used for them can be used Cathode mat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/36H01M4/48H01M4/52H01M4/62
CPCH01M4/366H01M4/483H01M4/523H01M4/625H01M10/0525Y02E60/10
Inventor 沈国庆
Owner 合肥融捷金属科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com