Air electrode of super-hydrophobic metal-air battery as well as preparation method and application

An air battery and air electrode technology, which is applied to battery electrodes, fuel cell half-cells, primary battery-type half-cells, circuits, etc., can solve the cumbersome preparation process of super-hydrophobic batteries, poor super-hydrophobic performance, and unsuitable large-scale applications. mass production etc.

Active Publication Date: 2021-04-30
NEW MATERIAL INST OF SHANDONG ACADEMY OF SCI
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the poor superhydrophobic performance of superhydrophobic air electrodes in the prior art, the preparation process of superhydrophobic batteries is cumbersome and not suitable for large-scale production

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
  • Air electrode of super-hydrophobic metal-air battery as well as preparation method and application
  • Air electrode of super-hydrophobic metal-air battery as well as preparation method and application
  • Air electrode of super-hydrophobic metal-air battery as well as preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0036] In one or some embodiments of the present disclosure, a method for preparing the air electrode of the above-mentioned superhydrophobic metal-air battery is provided, including the following steps:

[0037] Prepare composite plating solution: first add nickel salt and acidic solution into ultrapure water, mix and dissolve until the solution turns green, use a pH regulator to adjust the pH of the solution, and weigh a certain amount of surfactant and transition metal oxide nanoparticles , add the mixed solution in turn under strong stirring, stir and ultrasonically disperse evenly;

[0038] Electrode pre-treatment: take stainless steel mesh, soak to remove oil and rust in turn; take pure nickel sheet, mechanically polish, clean and activate;

[0039] Composite plating: use stainless steel mesh as the cathode and nickel sheet as the anode, perform composite plating under magnetic stirring, and keep the plating solution for a period of time;

[0040] Post-processing: After...

Embodiment 1

[0064] The present embodiment provides a kind of preparation method of the air electrode of superhydrophobic metal-air battery, comprises the steps:

[0065] 1) Prepare composite plating solution: first add nickel sulfate, nickel chloride, and boric acid into ultrapure water, dissolve under magnetic stirring conditions at 40°C until the solution turns green, and use hydrochloric acid or sodium hydroxide to adjust the pH of the solution to 4-5 . Weigh 0.05g / L cetyltrimethylammonium bromide, 5g / Lα-MnO 2 Nanoparticles were added to the above green solution sequentially under strong stirring, stirred and dispersed evenly by ultrasonic.

[0066] 2) Electrode pre-treatment: Take 400 mesh stainless steel mesh, immerse it in acetone, sodium hydroxide solution, hydrochloric acid solution in order to remove oil and rust; take pure nickel sheet, use SiC sandpaper, from high to low, from 120# in order Mechanically polish to 1200#, clean with deionized water, and activate with 1mol / L hyd...

Embodiment 2

[0072] The present embodiment provides a kind of preparation method of the air electrode of superhydrophobic metal-air battery, comprises the steps:

[0073] 1) Prepare composite plating solution: first add nickel sulfate, nickel chloride, and boric acid into ultrapure water, dissolve under magnetic stirring conditions at 40°C until the solution turns green, and use hydrochloric acid or sodium hydroxide to adjust the pH of the solution to 4-5 . Weigh 0.1g / L cetyltrimethylammonium bromide, 10g / Lα-MnO 2 Nanoparticles were added to the above green solution sequentially under strong stirring, stirred and dispersed evenly by ultrasonic.

[0074] 2) Electrode pre-treatment: Take 400 mesh stainless steel mesh, immerse it in acetone, sodium hydroxide solution, hydrochloric acid solution in order to remove oil and rust; take pure nickel sheet, use SiC sandpaper, from high to low, from 120# in order Mechanically polish to 1200#, clean with deionized water, and activate with 1mol / L hyd...

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
surface roughnessaaaaaaaaaa
Login to view more

Abstract

The invention relates to the technical field of battery materials, and particularly provides an air electrode of a super-hydrophobic metal-air battery as well as a preparation method and application. The preparation method comprises the following steps: preparing a composite plating solutio: adding nickel salt and an acidic solution into ultrapure water, mixing and dissolving until the solution is green, regulating the pH value of the solution by using a pH regulator, respectively weighing a certain amount of surfactant and transition metal oxide nanoparticles, sequentially adding the mixed solution while strongly stirring, stirring, and ultrasonically dispersing uniformly; electrode preprocessing: taking a stainless steel net, and conducting oil immersion and rust removal in sequence; pure nickel sheet taking: mechanically polishing, cleaning and activating; composite plating conduction: a stainless steel net serves as a cathode, a nickel sheet serves as an anode, composite plating is conducted under magnetic stirring, and electroplating liquid is kept for a period of time; and postprocessing: after electroplating is completed, washing the electrode, conducting surface modification through a low-surface-energy substance, then conducting drying in a vacuum drying box, and obtaining the electrode . The problem that a super-hydrophobic air electrode in the prior art is poor in super-hydrophobic performance is solved.

Description

technical field [0001] The disclosure relates to the technical field of battery materials, and specifically provides an air electrode for a superhydrophobic metal-air battery, a preparation method and application thereof. Background technique [0002] The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] Traditional air electrodes are generally composed of three parts: catalytic layer, current collecting layer and waterproof and breathable layer. The main component of the catalytic layer is an oxygen reduction catalyst, such as Pt / C, spinel oxide, perovskite oxide, transition metal oxide, etc. In addition, the layer must also contain conductive agent components (such as carbon particles) and hydrophobic agent components (such as PVDF or PTFE). Oxygen in the external atmosphere enters the air electrode through the waterproof and breathable layer, and forms a gas-liquid-solid three...

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): H01M4/86H01M4/88H01M4/90H01M12/06
CPCH01M4/8657H01M4/8663H01M4/9016H01M4/8853H01M12/06Y02E60/50
Inventor 赵国辰唐守秋周吉学刘会坤修大鹏李航刘运腾王西涛王瑨宋晓村王美芳
Owner NEW MATERIAL INST OF SHANDONG ACADEMY OF SCI
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