Unlock instant, AI-driven research and patent intelligence for your innovation.

Crossed metal nano-wire array super-capacitor electrode material and preparation method thereof

A technology of metal nanowires and supercapacitors, which is applied in the manufacture of hybrid capacitor electrodes, hybrid/electric double layer capacitors, etc., can solve the problems of low volume energy density and achieve the effects of high volume, low cost, simple process and operation

Active Publication Date: 2019-02-12
WUHAN UNIV OF TECH
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Relatively large wire diameter and pore size lead to low volumetric energy density of nickel foam and graphene foam electrode materials

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
  • Crossed metal nano-wire array super-capacitor electrode material and preparation method thereof
  • Crossed metal nano-wire array super-capacitor electrode material and preparation method thereof
  • Crossed metal nano-wire array super-capacitor electrode material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The preparation process of the crossed nickel metal nanowire array supercapacitor electrode material is as follows:

[0023] 1) Using a polyester film with intersecting nanopores as a template, and coating an indium-gallium alloy on one of its surfaces as a conductive substrate to obtain a conductive template;

[0024] 2) Assembling the electrodeposition device using conductive metal sheets, conductive templates, sealing gaskets, electrodeposition tanks and power sources;

[0025] 3) Add an electrolyte containing 120g / L of nickel sulfate, 20g / L of nickel chloride, and 40g / L of boric acid into the electrodeposition tank of the electrodeposition device, and turn on the power at a current density of 100A / m 2 The electrodeposition reaction is carried out under certain conditions, and the crossed nickel metal nanowire array is grown in the conductive template;

[0026] 4) Soak the electrodeposited conductive template in a 3mol / L sodium hydroxide solution at a temperature of...

Embodiment 2

[0031] The preparation process of the crossed cobalt metal nanowire array supercapacitor electrode material is as follows:

[0032] 1) using a polyester film with intersecting nanopores as a template, and loading graphene on one of its surfaces as a conductive substrate to obtain a conductive template;

[0033] 2) Assembling the electrodeposition device using conductive metal sheets, conductive templates, sealing gaskets, electrodeposition tanks and power sources;

[0034] 3) Add the electrolytic solution containing 120g / L of cobalt sulfate, 20g / L of cobalt chloride, and 40g / L of boric acid into the electrodeposition tank of the electrodeposition device, and turn on the power at a current density of 200A / m 2 The electrodeposition reaction is carried out under certain conditions, and the intersecting cobalt metal nanowire array is grown in the conductive template;

[0035] 4) Soak the electro-deposited conductive template in a 3mol / L sodium hydroxide solution at a temperature ...

Embodiment 3

[0039] The preparation process of the crossed manganese metal nanowire array supercapacitor electrode material is as follows:

[0040] 1) Using a polyester film with intersecting nanopores as a template, and coating an indium-gallium alloy on one of its surfaces as a conductive substrate to obtain a conductive template;

[0041] 2) Assembling the electrodeposition device using conductive metal sheets, conductive templates, sealing gaskets, electrodeposition tanks and power sources;

[0042] 3) Add the electrolytic solution containing 120g / L of manganese sulfate, 20g / L of manganese chloride, and 40g / L of boric acid into the electrodeposition tank of the electrodeposition device, and turn on the power supply at a current density of 300A / m 2 The electrodeposition reaction is carried out under certain conditions, and the intersecting manganese metal nanowire array is grown in the conductive template;

[0043] 4) Soak the electro-deposited conductive template in a 3mol / L sodium hy...

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
Apertureaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of nano-material and super-capacitor electrode preparation, and particularly relates to a crossed metal nano-wire array super-capacitor electrode materialand a preparation method thereof. The diameter of each metal nano-wire of the material is 60-200nm, layered metal hydroxide is loaded on the surface of each metal nano-wire, and the metal nano-wires are crossed to form a conductive self-supporting structure. The material has the advantages that the diameter of the prepared metal nano-wire is 60-200nm, the metal nano-wire has small size and large specific surface area, high volume energy density can be provided, the metal nano-wires are of mutually connected and mutual independence self-supporting structures, so that a nano-wire array has excellent electrical conductivity on the whole, and fast diffusion of electrolyte is facilitated. The preparation method is simple in process, simple to operate, low in cost, short in consumed time and free from pollution, and mass production is facilitated.

Description

technical field [0001] The invention belongs to the technical field of preparation of nanometer materials and supercapacitor electrodes, and in particular relates to a crossed metal nanowire array supercapacitor electrode material and a preparation method thereof. Background technique [0002] Due to the rapid consumption of fossil energy and the serious environmental pollution caused by it, it is more and more urgent to develop and utilize clean and renewable energy. Solar energy, wind energy, tidal energy, and geothermal energy are all clean and renewable energy sources, but their development and utilization are limited due to factors such as instability and geographical location. Due to their good rate performance, cycle performance and environmental friendliness, supercapacitors are considered to be the most promising energy storage and conversion devices, and have been widely used in various fields. The electrode materials of supercapacitors mainly include carbon-based...

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
IPC IPC(8): H01G11/24H01G11/30H01G11/86
CPCH01G11/24H01G11/30H01G11/86Y02E60/13
Inventor 宋少先葛伟陈天星易浩马球林陈骞
Owner WUHAN UNIV OF TECH