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

Self-supporting bimetal-based electrode material and preparation method and application thereof

A bimetallic and base electrode technology, applied in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor electrodes, etc., can solve the problems of restricting the development of supercapacitors, short cycle life, low energy density, etc., to alleviate Faraday reaction, long cycle The effect of life and high energy density

Pending Publication Date: 2022-04-26
SOUTHEAST UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ZnCo 2 o 4 The problems of poor conductivity, low energy density and short cycle life severely limit its development in the field of supercapacitors

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
  • Self-supporting bimetal-based electrode material and preparation method and application thereof
  • Self-supporting bimetal-based electrode material and preparation method and application thereof
  • Self-supporting bimetal-based electrode material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A self-supporting ZnCo 2 o 4 -The preparation method of ZnO@CoS composite material, comprises the following steps:

[0033] (1) Pretreatment of nickel foam:

[0034] Followed by 3mol L -1 Dilute hydrochloric acid, deionized water and absolute ethanol were used as cleaning agents to ultrasonically clean the nickel foam, and finally vacuum-dried at 60°C for 12 hours to obtain the pretreated nickel foam;

[0035](2) Dissolve 1.5mmol cobalt nitrate hexahydrate and 1.5mmol zinc nitrate hexahydrate in 20mL deionized water and 5mL absolute ethanol by solvothermal method, then add 4mmol urea, stir to obtain a pink uniform solution, transfer to Put the pretreated nickel foam obtained in step (1) into a stainless steel reaction kettle lined with polytetrafluoroethylene, seal the reaction kettle and place it in an oven, react at 130°C for 5h, cool naturally to room temperature, and then use it sequentially Rinse the nickel foam with deionized water and absolute ethanol, and dr...

Embodiment 2

[0039] On the basis of embodiment 1, different from embodiment 1 is:

[0040] In step (3), in the high-temperature-resistant glass bottle, Zn is grown on the surface x co 1-x (OH) 2 The concentration of nickel foam in the precursor is 0.05mol L -1 Glucose aqueous solution, sealed and placed in an oven, reacted at 85°C for 8h, cooled to room temperature; put the wet nickel foam into a tube furnace, calcined at 400°C for 2h, and completed the carbonization step to obtain ZnCo 2 o 4 - ZnO@C composite material;

[0041] In step (4), to grow ZnCo 2 o 4 -Ni foam of ZnO@C as working electrode to get ZnCo 2 o 4 - ZnO@C@CoS-6 composites.

Embodiment 3

[0043] On the basis of Example 2, the difference from Example 2 is that in step (3), the reaction temperature in the oven is 100° C., and the reaction time is 6 hours.

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
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a self-supporting bimetal-based electrode material and a preparation method and application thereof, the material is of a core-shell structure, the core is ZnCo2O4-ZnO loaded on a foamed nickel substrate, and the shell is CoS deposited on the surface of a ZnCo2O4-ZnO compound. The method comprises the following steps: pretreating foamed nickel; growing a ZnxCo1-x (OH) 2 precursor on the foamed nickel in situ, and calcining to obtain ZnCo2O4-ZnO; coS is deposited on the surface of ZnCo2O4-ZnO (at) C through an electro-deposition method, and the composite material is obtained. The material forms a stable three-dimensional structure, has a relatively high specific surface area and a large number of active sites, and is in full contact with electrolyte, and an enough free space is formed in the material, so that a long-term Faraday reaction can be effectively relieved; relatively high energy density and relatively long cycle life are shown; the preparation method is simple in process, low in cost and high in reproducibility.

Description

technical field [0001] The invention relates to a metal-based electrode material, its preparation method and application, in particular to a self-supporting bimetallic-based electrode material, its preparation method and application. Background technique [0002] In the context of rapid economic development, people's demand for pollution-free and renewable energy is increasing. The scale of development and utilization of green and clean energy such as solar energy, wind energy, tidal energy, and nuclear energy continues to expand, but these energy sources are easily affected by seasonal and regional changes, and the continuity and stability of use cannot be guaranteed. Therefore, the development and use of high-performance, The combination of sustainable energy conversion and energy storage devices can effectively solve the problem of such clean energy transportation. [0003] However, the current commercialized supercapacitors still can only play a role in the field of fas...

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): H01G11/26H01G11/30H01G11/46H01G11/86
CPCH01G11/26H01G11/30H01G11/46H01G11/86Y02E60/13
Inventor 娄永兵李宝乐张珂
Owner SOUTHEAST 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