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Electrode slurry for paper-based supercapacitor, paper-based electrode, preparation method and application

A supercapacitor and electrode slurry technology, which is applied in the manufacture of hybrid capacitor electrodes and hybrid/electric double layer capacitors, can solve the problems of poor adhesion between active electrode materials and paper substrates, difficulty in large-scale production, etc., and achieve production Low difficulty, stable conductivity, and uniform film formation

Active Publication Date: 2022-04-05
SHENZHEN JIANGHAO ELECTRON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to improve the problem of poor adhesion between the active electrode material and the paper substrate and the difficulty of large-scale production, the application provides an electrode slurry for a paper-based supercapacitor, a paper-based electrode, a preparation method, and an application

Method used

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  • Electrode slurry for paper-based supercapacitor, paper-based electrode, preparation method and application
  • Electrode slurry for paper-based supercapacitor, paper-based electrode, preparation method and application
  • Electrode slurry for paper-based supercapacitor, paper-based electrode, preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0062] According to the percentage of weight, 85% of the porous activated carbon, 4.5% CMC cellulose, 2.5% alumina powder, 8% nickel powder added to a vacuum mixer mixed tank, rolling rotation for 60 minutes to obtain a mixture, The mixture is added to 1 to a cyclobutolane, and the slurry is introduced into the dispersion after 2 hours, and then the mixture is cleaned with a mixture of 0.5 times a cyclobutolane, and the cleaning liquid is introduced into the dispersion. The slurry in the dispersion machine was dispersed for 4 hours to obtain an electrode slurry.

[0063] In the slurry tank of the electrode slurry into the coating machine, the slurry tank uses 304 stainless steel material to prevent the introduction of other chemical impurities, and the electrode slurry is contaminated, and the electrode slurry in the slurry tank is continuously dispersed to prevent electrode slurry. The material is deposited or separated, and then the electrode slurry is evenly applied to the pape...

Embodiment 2

[0065] The difference from Embodiment 1 is that 87.5% porous activated carbon, 2.5% polyacrylic acid, 5% silicon nanoparticles, 5% micron silver powder are added to a vacuum mixer, rolling rotation mix. The mixture was obtained in 60 minutes, and N-methylpyrrolidone in the mixture was added to the mixing tank. After mixing for 2 hours, the slurry was introduced into the dispersion, and then the mixture was 0.5 times N-methylpyrrolidone. The mixing tank was cleaned and the cleaning liquid was introduced into the dispersion, and the slurry in the disperser was dispersed for 4 hours to obtain an electrode slurry.

Embodiment 3

[0067] The difference from Embodiment 1 is that 90% porous activated carbon, 2.5% polyvinyl alcohol, 2.5% zeolite powder, 5% silver nanowire, and 20% silver nanowires, rolling rotation The mixture was mixed for 60 minutes to obtain a mixture of 1.3 times gammutide in the mixing tank. After mixing for 2 hours, the slurry was introduced into the dispersion, and then the mixture was 0.5 times gamma. The ester washing the mixing tank and introduced the cleaning solution into the dispersion, dispersing the slurry in the disperser for 4 hours to obtain electrode slurry.

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Abstract

The invention relates to the field of paper-based supercapacitors, and particularly discloses electrode slurry for a paper-based supercapacitor, a paper-based electrode, a preparation method and application. The electrode slurry is composed of a solvent and a solute dissolved in the solvent, and the weight of the solvent is 1.5-2 times that of the solute; the solute comprises the following components in percentage by weight: 85%-95% of an active electrode material, 0.5%-4.5% of a binder, 0.1%-5% of a proppant and 0.1%-8% of a conductive agent; the paper-based electrode comprises a paper substrate, the surface of the paper substrate is coated with the electrode slurry, the paper substrate is made of a long-fiber non-woven paper material, and the thickness of the paper substrate is 50-80 microns. The adhesive force between the electrode slurry and a paper substrate is good, the bonding strength is high, the electrode slurry is not prone to falling off, the electrode slurry is suitable for large-scale production of winding type super capacitors, the prepared paper-based electrode is excellent in conductivity, the surface of the paper-based electrode is provided with a plurality of micropore structures, and the super capacitor has a higher capacity value.

Description

Technical field [0001] The present application relates to the field of paper-based supercapacitor, and more particularly, it involves a paper-based supercapacitor electrode slurry, paper based electrode and preparation method and application. Background technique [0002] The supercapacitor is a chemical energy storage device that is between the ordinary capacitors and the battery. It is different from the battery. The energy density of the supercapacitor is large, and the storage power is much, and because the capacity of the supercapacitor is extremely useful, it can often be used as a battery. The supercapacitor is characterized by even if the charge and discharge speed is only a few seconds, and the charge and discharge rate can reach a million times. [0003] At present, the electrode substrate of the supercapacitor is mainly a metal-based electrode made of a metal substrate, and is made into a supercapacitor electrode by covering or attaching the active electrode material o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/30H01G11/32H01G11/26H01G11/86
CPCY02E60/13
Inventor 尹超徐荣王永祥尹志华
Owner SHENZHEN JIANGHAO ELECTRON
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