Preparation method of different morphologies of cobalt monoxide nanometers loaded with foam nickel

A technology of cobalt monoxide and nanomaterials, applied in the direction of nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problem of not meeting high-capacity power batteries, affecting ion and electron transmission, poor conductivity, etc. problems, to achieve a wide pore size distribution, shorten the transmission path, and improve the conductivity

Active Publication Date: 2018-08-10
SOUTH CHINA NORMAL UNIVERSITY
View PDF14 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the three-dimensional porous carbon framework / CoO composite material prepared by this method is used as the anode material of lithium-ion batteries, and the initial discharge capacity is only 700mAh / g, which cannot meet the needs of high-capacity power batteries. The main reason for the low capacity is the material itself. Poor conductivity, which affects the transport of ions and electrons

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of different morphologies of cobalt monoxide nanometers loaded with foam nickel
  • Preparation method of different morphologies of cobalt monoxide nanometers loaded with foam nickel
  • Preparation method of different morphologies of cobalt monoxide nanometers loaded with foam nickel

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0051] According to a non-limiting embodiment of the present invention, there is provided a method for preparing nickel foam supported cobalt monoxide nanomaterials with different shapes, the method comprising the following steps.

[0052] (1) The flaky nickel foam is placed in an ultrasonic cleaning machine for cleaning, and the cleaned foam nickel is placed in a drying oven for drying.

[0053] (2) Disperse the cobalt chloride hexahydrate powder into the dispersing solvent added with urea, and magnetically stir at room temperature for 0.5 to 1.5 hours to form a suspension at a stirring speed of 300 to 400 RPM, wherein the concentration of cobalt chloride hexahydrate and urea The quality is 2:3~8.

[0054] (3) Transfer the suspension in step (2) to the high-pressure hydrothermal reaction kettle, and put the dried sheet-shaped nickel foam into the high-pressure hydrothermal reaction kettle obliquely in the step (1), and seal the high-pressure For the hydrothermal reactor, set...

Embodiment 1

[0059] The preparation method of the CoO nanomaterials of two different shapes specifically comprises the following steps:

[0060] First, in step 1, the nickel foam with a specification of 280ppm and a thickness of 0.5mm is cut into a uniform size of 3 × 4 square centimeters, and cleaned with 3mol / L hydrochloric acid, acetone, absolute ethanol and deionized water in sequence. Wash in the machine for 30 minutes, 20 minutes, 15 minutes and 15 minutes, and then dry in a drying oven at a temperature of 60°C for 8 hours.

[0061] Next, in step 2, the CoCl 2 ·6H 2 The O powder is dispersed into deionized water with urea added, the mass ratio of urea to deionized water is 0.55:29, and magnetically stirred at a stirring speed of 350RPM for 1 hour at room temperature to form a suspension, wherein, CoCl 2 ·6H 2 The mass ratio of O to urea is 2:5.

[0062] Then, in step 3, the suspension is transferred to the high-pressure hydrothermal reactor, the dried nickel foam is tilted into t...

Embodiment 2

[0066] In addition to step 2, the CoCl 2 ·6H 2 O powder is dispersed in the dehydrated alcohol that has added urea, and the mass ratio of urea and dehydrated alcohol is 0.55:23, other steps are the same as embodiment 1.

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

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses a preparation method of different morphologies of cobalt monoxide nanometers loaded with foam nickel. The preparation method comprises: placing sheet-like foam nickel in an ultrasonic washing machine, washing, placing the washed foam nickel in a drying box, and drying; dispersing cobalt chloride hexahydrate powder into a dispersion solvent added with urea, and magneticallystirring at a room temperature to form a suspension; transferring the suspension to a high-pressure hydrothermal reaction kettle, obliquely placing the dried sheet-like foam nickel into the high-pressure hydrothermal reaction kettle, sealing the high-pressure hydrothermal reaction kettle, placing the high-pressure hydrothermal reaction kettle into the drying box, carrying out thermal insulation for 15-18 h at a temperature of 160-200 DEG C, and naturally cooling to a room temperature; taking the foam nickel out of the high-pressure hydrothermal reaction kettle, placing into the ultrasonic washing machine, washing, placing into a vacuum drying box, and drying to obtain a precursor; and calcining the precursor for 3-4 h at a calcination temperature of 400-520 DEG C.

Description

technical field [0001] The invention relates to a negative electrode material of a lithium ion battery, in particular to a preparation method of a foamed nickel-loaded cobalt monoxide nanometer material. Background technique [0002] With the continuous development of the automobile industry, the depletion of non-renewable resources such as petroleum is becoming more and more serious. At the same time, the environmental pollution caused by non-renewable resources has become one of the key issues of global concern. Therefore, research and development of a new generation of high-performance, environmentally friendly and green chemical power sources is an important part of sustainable development. Lithium-ion battery, as a new type of high-efficiency green energy storage device, has the advantages of high energy density, high working voltage, small self-discharge, long cycle life, good safety performance and no memory effect. It is an internationally recognized ideal Chemical ...

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 Applications(China)
IPC IPC(8): H01M4/1391H01M4/52H01M4/62H01M10/0525B82Y30/00
CPCH01M4/1391H01M4/52H01M4/626H01M4/628H01M10/0525B82Y30/00H01M2004/027H01M2004/021Y02E60/10
Inventor 赵灵智刘妙
Owner SOUTH CHINA NORMAL UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap