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Method for preparing electrode of supercapacitor based on reel-to-reel printing technique

A technology of supercapacitor and printing technology, which is applied in the manufacture of hybrid capacitor electrodes and hybrid/electric double-layer capacitors.

Inactive Publication Date: 2018-05-15
湖南纳昇电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In actual industrial production, these methods will cause great waste of raw materials, and are not suitable for large-scale, large-area, continuous production

Method used

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  • Method for preparing electrode of supercapacitor based on reel-to-reel printing technique
  • Method for preparing electrode of supercapacitor based on reel-to-reel printing technique
  • Method for preparing electrode of supercapacitor based on reel-to-reel printing technique

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Experimental program
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Effect test

Embodiment 1

[0016] The method for preparing electrode in the present embodiment comprises the following steps:

[0017] (1) Use isopropanol, ethanol, deionized water to ultrasonically clean the foamed nickel substrate for 30 minutes, and dry it for later use; respectively take a certain amount of activated carbon and place it in a 90-degree oven to dry for 1 hour and polyvinylidene fluoride ( PVDF) placed in an oven at 80 degrees and dried for 6 hours before use;

[0018] (2) Dissolve the dried PVDF in N-methylpyrrolidone (NMP), prepare a 2% PVDF solution, and stir at room temperature for 10 hours;

[0019] (3) Get 18g activated carbon and 2g PVDF solution and mix, after stirring for 2 hours, then add 2% silver nanowires, stir for 30 minutes and then prepare printing paste;

[0020] (4) Apply roll-to-roll micro-gravure printing to the above-mentioned prepared slurry on the aluminum foil, the base width of the aluminum foil is 15cm, the coating speed is set to 0.2m / min, and the coating sp...

Embodiment 2

[0025] The method for preparing electrode in the present embodiment comprises the following steps:

[0026] (1) Use isopropanol, ethanol, and deionized water to ultrasonically clean the nickel foam substrate for 30 minutes, and dry it before use; take a certain amount of activated carbon and dry it in an oven at 90 degrees for 1 hour and PVDF at 80 degrees Dry in the oven for 6 hours before use;

[0027] (2) Dissolve the dried PVDF in NMP, prepare a 2% PVDF solution, and stir at room temperature for 10 hours;

[0028] (3) Get 12g activated carbon, the mixture of 6g carbon nanotubes and 2g PVDF solution mix, after stirring for 2 hours, then add 4% silver nanowires, stir for 30 minutes and then prepare printing paste;

[0029] (4) Apply the above-mentioned prepared slurry to the aluminum foil by slit coating. The width of the base of the aluminum foil is 15 cm, the speed of the base is 0.3 m / min, the thickness of the gasket is between 2 microns and 10 microns, and the ink is in...

Embodiment 3

[0034] The method for preparing electrode in the present embodiment comprises the following steps:

[0035] (1) Use isopropanol, ethanol, and deionized water to ultrasonically clean the foamed nickel substrate for 30 minutes, and dry it for use; take a certain amount of graphene and place it in a 90-degree oven for 1 hour and PVDF in a 80-degree oven. Dry in an oven for 6 hours before use;

[0036] (2) Dissolve the dried PVDF in NMP, prepare a 2% PVDF solution, and stir at room temperature for 10 hours;

[0037] (3) Get 18g graphene and 2gPVDF solution to mix, after stirring for 2 hours, then add 3% silver nanowires, stir for 30 minutes and then prepare printing paste;

[0038] (4) Apply roll-to-roll micro-gravure printing to the above-mentioned prepared slurry on the aluminum foil, the base width of the aluminum foil is 15cm, the coating speed is set to 0.2m / min, and the coating speed ratio is 90% to 360%, which can form a uniform The thin film electrodes are dried in an 80...

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Abstract

The invention discloses a method for preparing an electrode of a supercapacitor based on a reel-to-reel printing technique. According to the method, by utilizing the reel-to-reel printing technique, asilver nano-wire is taken as a conductive agent and is mixed with a binder and active matters so as to form slurry, foamed nickel is used as a current collector for preparing an electrode pole piece,and the electrode pole piece is assembled with a diaphragm and electrolyte so as to form the supercapacitor. The method has the advantages of rapidness, high efficiency, excellent performance, good continuity and the like and has wide development prospects in industrial production and actual application, and the large-scale production can be realized.

Description

technical field [0001] The invention relates to a method for preparing a supercapacitor electrode, which belongs to the technical field of supercapacitor manufacturing. Background technique [0002] Supercapacitor, also known as electrochemical capacitor, is a new type of green energy storage device between traditional capacitors and secondary batteries. It has high power density, short charging time, long service life, wide operating temperature range, safety, Pollution-free and other characteristics, it has broad application prospects in many fields such as electric vehicles, aerospace, energy storage, and industrial energy-saving systems. [0003] Among the existing technologies for preparing supercapacitor electrodes, the scraping method, rolling method and drop coating method are common methods for preparing supercapacitor electrodes. In actual industrial production, these methods will cause great waste of raw materials, and are not suitable for large-scale, large-area...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/86H01G11/28H01G11/30H01G11/48
CPCY02E60/13H01G11/86H01G11/28H01G11/30H01G11/48
Inventor 阳军亮李恒月童思超郭辉
Owner 湖南纳昇电子科技有限公司
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