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Method for preparing high-conductivity stretchable sponge graphene-based electrode material

A graphene-based electrode material technology is applied in the preparation of stretchable materials and the preparation of highly conductive sponge-like graphene-based electrode materials, and can solve the problems of difficulty in stretching, high resistance, insufficient tensile stability, and the like, To achieve the effect of good conductivity, high application value, simple and controllable method

Inactive Publication Date: 2015-08-12
SHANDONG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the shortcomings of current electrode materials such as large resistance, difficult stretching, and insufficient stretching stability, the present invention proposes a preparation method for a highly conductive stretchable sponge-like graphene-based electrode material; High performance (stretch length greater than 300%) electrode preparation method to prepare stretchable hybrid structures

Method used

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  • Method for preparing high-conductivity stretchable sponge graphene-based electrode material
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  • Method for preparing high-conductivity stretchable sponge graphene-based electrode material

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Growth of graphene on foamed nickel substrates and eventually growth of graphene / nickel particle hybrid structures, such as figure 1 The preparation roadmap includes the following preparation steps:

[0035] 1. Take nickel foam with a size of 8cm×8cm and place it in a tube furnace;

[0036] 2. Turn on the vacuum pump to pump the air pressure of the tube furnace to the ultimate vacuum state of 3×10 -6 Torr;

[0037] 3. Keep vacuum 3×10 -6 After Torr for 15 minutes (the effect of vacuum for 15 minutes is to remove impurities, air, etc. inside the quartz tube to ensure that the reaction chamber is clean), the air pressure of the quartz tube 3 is raised to 3 × 10 -3 Torr;

[0038] 4. Set the hydrogen flow meter to 100sccm, and inject hydrogen into the vacuum chamber;

[0039] 5. After the tube furnace temperature rises to 300°C, anneal at a constant temperature for 20 minutes;

[0040] 6. After the tube furnace temperature rises to 1000°C, inject methane into the vacu...

Embodiment 2

[0059] Growth of graphene on foamed copper substrates and eventually growth of graphene / copper particle hybrid structures, such as figure 1 The preparation roadmap includes the following preparation steps:

[0060] 1. Take foam copper with a size of 8cm×9cm and place it in a tube furnace;

[0061] 2. Turn on the vacuum pump to pump the air pressure of the tube furnace to the ultimate vacuum state of 3×10 -6 Torr;

[0062] 3. Keep vacuum 3×10 -6 After Torr for 15 minutes (the effect of vacuum for 15 minutes is to remove impurities, air, etc. inside the quartz tube to ensure that the reaction chamber is clean), the air pressure of the quartz tube 3 is raised to 3 × 10 -3 Torr;

[0063] 4. Set the hydrogen flow meter to 100sccm, and inject hydrogen into the vacuum chamber;

[0064] 5. After the tube furnace temperature rises to 300°C, anneal at a constant temperature for 20 minutes;

[0065] 6. After the tube furnace temperature rises to 1000°C, inject methane into the vacu...

Embodiment 3

[0084] Growth of graphene on foamed nickel substrates and eventually growth of graphene / nickel particle hybrid structures, such as figure 1 The preparation roadmap includes the following preparation steps:

[0085] 1. Take nickel foam with a size of 5cm×9cm and place it in a tube furnace;

[0086] 2. Turn on the vacuum pump to pump the air pressure of the tube furnace to the ultimate vacuum state of 3×10 -6 Torr;

[0087] 3. Keep vacuum 3×10 -6 After Torr for 15 minutes (the effect of vacuum for 15 minutes is to remove impurities, air, etc. inside the quartz tube to ensure that the reaction chamber is clean), the air pressure of the quartz tube 3 is raised to 3 × 10 -3 Torr;

[0088] 4. Set the hydrogen flow meter to 100sccm, and inject hydrogen into the vacuum chamber;

[0089] 5. After the tube furnace temperature rises to 300°C, anneal at a constant temperature for 20 minutes;

[0090] 6. After the tube furnace temperature rises to 1000°C, inject methane into the vacu...

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Abstract

The invention relates to a method for preparing a high-conductivity stretchable sponge graphene-based electrode material. A chemical vapor deposition method is adopted to grow sponge graphene on a foam metal substrate; then, the prepared graphene / foam metal is soaked into an etching solution, and the concentration and the temperature of the etching solution are controlled so as to obtain a graphene / metal particle mixing structure; then, the prepared graphene / foam metal is fished out of the etching solution to be cleaned; pre-stretching 3M stretchable rubber tape is used for covering the surface of graphene, and the graphene is fished out and naturally dried; a pre-stretching elastic substrate covering a flexible graphene / metal particle mixing structure slowly recovers to the original length or area, so that the self-assembling crumpled stretchable graphene / metal particle mixing structure electrode material is prepared. The electrode material is excellent in stretching performance, good in stability, high in conductivity, low and controllable in cost, and capable of being produced in a large-scale manner, and has the great application value.

Description

technical field [0001] The invention relates to the preparation of a stretchable material, in particular to the preparation of a highly conductive spongy graphene-based electrode material, which belongs to the technical field of new materials. Background technique [0002] For today's new electronic devices, it is very important to develop electrode materials with high conductivity, high stability, softness and portability. Stretchable electronic devices can still exhibit good electrical properties under large mechanical stress, and have a wide range of applications in human implants, flexible portable devices, wearable devices, wireless sensing devices, etc. To realize its independent driving ability, it is particularly important to develop stretchable electrode materials. However, the progress of related research is relatively slow, mainly because it is difficult to prepare stretchable electrode materials with excellent electrical and electrochemical properties. [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00C01B31/04
Inventor 杨诚毕懿卿路婧张超满宝元姜守振修显武
Owner SHANDONG NORMAL UNIV
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