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

Preparation method of high-rate Prussian blue sodium ion battery positive electrode material

A sodium-ion battery and Prussian blue technology is applied in the field of preparation of cathode materials for high-rate Prussian blue sodium-ion batteries, which can solve the problems of discontinuous migration path of sodium ions, poor rate performance, etc. Stable material properties and low dosage

Pending Publication Date: 2022-08-05
NORTHWESTERN POLYTECHNICAL UNIV
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When used as a cathode material for Na-ion batteries, the discontinuity of the Na-ion migration path leads to poor rate performance

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 high-rate Prussian blue sodium ion battery positive electrode material
  • Preparation method of high-rate Prussian blue sodium ion battery positive electrode material
  • Preparation method of high-rate Prussian blue sodium ion battery positive electrode material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] This example involves a preparation method of a high -power Prussian blue sodium ion battery, including the following steps:

[0023] 1) Sodium 10mg of polyacrynal is dissolved in 100ml to remove ion water; weigh 0.1g of sodium ferrocyanide and uniformly dissolved in the above solution. Use sulfuric acid to adjust the solution to pH to 1, and stir at room temperature for 30 minutes.

[0024] 2) Transfer the above -mentioned precursor solution to a 40 ° C water bath pot for 1h, static and cooling to room temperature, and collect the sediment.

[0025] 3) Dry the obtained sediment in an oven at 80 ° C for 1h to get the positive electrode material of the Prussian blue sodium ion battery.

[0026] Using a high-magnification Prussian Blue as a sodium ion battery positive active activity material, single-quality metal sodium thin tablets are used as the negative electrode of sodium ion battery. Under the protection of cymbal protection, the glove box is assembled and button-type ...

Embodiment 2

[0028] This example involves a preparation method of a high -power Prussian blue sodium ion battery, including the following steps: 1) dissolving 200 mg of 200mg of carbugly carboxymethyl cellulose in 100ml exfoliating water, which is called 2g of sodium ferrite. In the above solution. Use hydrochloric acid to adjust the solution to pH to 2, and stir at room temperature for 30 minutes.

[0029] 2) Transfer the above -mentioned precursor solution to a 60 ° C water bath pot for 5h, static and cooling to room temperature, and collect the sediment.

[0030] 3) Dry the obtained sediment in a 120 ° C oven for 10h to get the positive electrode material of the Prussian blue sodium ion battery. The preparation of positive and negative polar tablets and the assembly reference embodiment 1 of the battery.

Embodiment 3

[0032] This example involves a preparation method of a high -power Prussian blue sodium ion battery, including the following steps:

[0033] 1) Sodium sodium alginate is dissolved in 100ml to remove ion water, and 1g of sodium ferrite is uniformly dissolved in the above solution. Use acetic acid to adjust the solution to pH to 5, and stir at room temperature for 30 minutes.

[0034] 2) Transfer the above -mentioned precursor solution to a water bath cooker at 100 ° C for 10h, static and cooling to room temperature, and collect the sediment.

[0035] 3) Dry the obtained sediment in a 200 ° C oven for 24 hours to get the positive electrode material of the Prussian blue sodium ion battery. The preparation of positive and negative polar tablets and the assembly reference embodiment 1 of the battery.

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 provides a preparation method of a high-rate Prussian blue sodium ion battery positive electrode material. According to the method, the high-magnification Prussian blue material is prepared on the basis of the low-temperature water bath reaction of ferrocyanide and a coordination agent water solution, the consistency of the solution and the coordination effect with iron ions are achieved only through a low-concentration coordination agent, the nucleation rate of Prussian blue is effectively inhibited, the vacancy and water molecule content in a Prussian framework is reduced, and the yield of the Prussian blue material is increased. And the rate capability is obviously improved. The method has the advantages of environmental friendliness, low reaction temperature, low cost and the like.

Description

Technical field [0001] The invention is the field of electrochemical energy storage materials, which provides a preparation method for the positive pole material of the Prussian blue sodium ion battery. Background technique [0002] In recent years, sodium ion batteries have become research hotspots in the field of electrochemical energy storage due to the advantages of rich resources, low process costs, and environment -friendly. At present, sodium ion batteries are still in the R & D stage, and the positive pole material has a significant impact on the performance of sodium ion batteries. Therefore, the development of high -performance sodium ion batteries positive materials have become a key research content for the development of sodium ion batteries. The most extensive sodium ion battery positive materials include metal oxides, polycotic compounds, and Prussian blue and its analogs. Among the many Prussian blue and its analogies, Prussia Blue not only has an open frame struc...

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): C01C3/12H01M4/58H01M10/054
CPCC01C3/12H01M4/58H01M10/054H01M2004/028C01P2006/40C01P2002/72C01P2004/03Y02E60/10
Inventor 王建淦姜明炜沈超谢科予
Owner NORTHWESTERN POLYTECHNICAL UNIV
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