Method for manufacturing organic supercapacitor electrode plate

A technology of supercapacitors and electrode pole pieces, applied in capacitors, electrolytic capacitors, circuits, etc., can solve the problems of high cost of supercapacitors, reduce mechanical properties, affect continuity, etc., achieve stable and reliable production processes, reduce product costs, and be difficult to powder drop effect

Inactive Publication Date: 2012-06-13
JIANGSU FRONT NEW ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the cost of supercapacitors is still very high, and the widely used current collector corrodes aluminum foil, which accounts for a large proportion of the cost of raw materials. At the same time, because the mechanical properties of the aluminum foil are reduced after the corrosion process, it is easy to break in the production of automatic coating machines. Affects continuous production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Make aluminum foil pretreatment paint on a 10L paste machine, weigh 0.5Kg of styrene-butadiene rubber emulsion (SBR), add 7.2Kg of deionized water, and stir evenly at room temperature; then add conductive agent natural graphite 2Kg, absolute ethanol 0.2Kg, 20g of carbon nanotubes, 0.1kg of sodium carboxymethyl cellulose. , High-speed stirring and dispersing for 2h to prepare the coating.

[0013] Connect the 20-micron thick aluminum foil to the automatic coating machine, pour the pre-treatment coating from the feed port, set the belt speed to 3.5m / min, and control the thickness of the pre-treatment coating to 1-2 μm by adjusting the intermittent control of the scraper and coating roller. The prepared pretreatment paint is uniformly coated on the aluminum foil by a coating process. Then the aluminum foil automatically enters the oven for drying, the oven temperature is 60°C, and the drying time is 2 minutes.

[0014] Put 10Kg of activated carbon into the 50L paste mach...

Embodiment 2

[0017] Prepare aluminum foil pretreatment paint on a 10L paste machine, weigh 0.5Kg of styrene-butadiene rubber emulsion (SBR) and 0.2Kg of neoprene rubber emulsion. Add 6.4Kg of deionized water and stir evenly at room temperature; then add conductive agent carbon fiber 2.5Kg, absolute ethanol 0.1Kg, carbon nanotubes 20g, and sodium carboxymethylcellulose 0.3Kg. , High-speed stirring and dispersing for 10h to prepare the coating.

[0018] Connect the 20-micron thick aluminum foil to the automatic coating machine, pour the pre-treatment coating from the feeding port, set the belt speed to 3.5m / min, and control the thickness of the pre-treatment coating to 5 μm by adjusting the intermittent control of the scraper and coating roller. The prepared pretreatment paint is uniformly coated on the aluminum foil by a coating process. Then the aluminum foil automatically enters the oven for drying, the oven temperature is 80°C, and the drying time is 2 minutes.

[0019] Throw in 10Kg o...

Embodiment 3

[0022] Make aluminum foil pretreatment paint on a 10L paste machine, ethylene vinyl acetate emulsion (VAE) 0.2Kg, neoprene rubber emulsion (CR) 0.8Kg. Add 6.85Kg of deionized water, stir evenly at room temperature; then add 1Kg of conductive agent natural graphite, 0.5Kg of carbon fiber, 0.5Kg of absolute ethanol, 50g of carbon nanotubes, 0.1Kg of sodium carboxymethylcellulose, and disperse at high speed for 24 hours. coating.

[0023] Connect the 30-micron thick aluminum foil to the automatic coating machine, pour the pre-treatment coating from the feeding port, set the belt speed to 3.5m / min, and control the thickness of the pre-treatment coating to 1-2 μm by adjusting the intermittent control of the scraper and coating roller. The prepared pretreatment paint is uniformly coated on the aluminum foil by a coating process. Then the aluminum foil automatically enters the oven for drying, the oven temperature is 120°C, and the drying time is 5 minutes.

[0024] Put 10Kg of ac...

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Abstract

The invention provides a method for manufacturing an organic supercapacitor electrode plate. The method comprises the following steps of: manufacturing an aluminum foil pretreatment coating, adding an adhesive into deionized water, and uniformly stirring at normal temperature; adding a conductive agent, absolute ethanol, a carbon nano tube and sodium carboxymethyl cellulose, stirring at a high speed and dispersing to obtain the coating; uniformly coating the manufactured pretreatment coating on an aluminum foil by employing a coating process, coating active substance slurry on the pretreated aluminum foil, and drying to manufacture the electrode plate. A corrosive aluminum foil is replaced by a common aluminum foil, the cost of raw materials is effectively reduced, and the production operability and stability are improved; meanwhile, after the aluminum foil is pretreated, internal resistance of the supercapacitor is greatly reduced, and high-power output performance of the product is improved.

Description

technical field [0001] The invention relates to the production of a supercapacitor electrode pole piece, and belongs to the technical field of chemical power sources. Background technique [0002] Ultracapacitor (Ultracapacitor), also known as Electrical Doule-Layer Capacitor (Electrical Doule-Layer Capacitor), stores energy through the electrode active material --- high specific surface area activated carbon, and no chemical reaction occurs in the process of energy storage. The process is reversible, and because of this, supercapacitors can be charged and discharged hundreds of thousands of times. The huge surface area of ​​activated carbon for supercapacitors coupled with the very small separation distance of charges makes supercapacitors have surprisingly large electrostatic capacity compared with traditional capacitors, which is where their "super" lies. Its capacity far exceeds the microfarad and picofarad levels of ordinary capacitors, and a single capacitor can reach...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/052H01G9/042
CPCY02E60/13
Inventor 苏迎东许谦凌付冬柳华勤杨宝峰
Owner JIANGSU FRONT NEW ENERGY
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