Method for manufacturing super capacitor

A technology of a super capacitor and a manufacturing method, applied in liquid electrolytic capacitors and other directions, can solve the problems of separation, waste, and low yield of diaphragm active materials, and achieve the effects of improving yield, reducing work, and saving costs.

Inactive Publication Date: 2011-05-25
湖北长海新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the production process, the positive and negative electrode sheets are generally wound or stacked to form the battery body, and the positive and negative electrode sheets often have small burrs and other burrs during the cutting process, and there may be dust in the production workshop, and the diaphragm is relatively thick. Thin and brittle, and there may be particles of active material falling off, etc., so micro-short circuit problems are prone to occur under a certain pressure after entering the shell
In addition, because the production unit did not adopt a suitable detection method before the battery core body was loaded into the shell, it caused problems such as low yield and serious waste, which also affected the economic benefits of the unit.

Method used

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  • Method for manufacturing super capacitor
  • Method for manufacturing super capacitor
  • Method for manufacturing super capacitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 2 Shown, a kind of supercapacitor manufacturing method, its steps are as follows:

[0031] A. Slurry preparation: According to the conventional proportioning, the positive electrode slurry and the negative electrode slurry are prepared under the stirring process conditions; this embodiment is to prepare activated carbon, conductive agent acetylene black, binder polyvinylidene fluoride and a certain quality of solvent N-4-methylpyrrolidone was mixed, and stirred at high speed in a vacuum mixer for 18 hours to obtain a uniformly mixed slurry;

[0032] B. Coating: The positive electrode slurry and the negative electrode slurry are respectively coated on the current collector 1 by a coating process; this embodiment is coated on an aluminum foil, and the thickness is controlled to be 170 microns;

[0033] C. Drying, slicing, and rolling: first dry the current collector 1 coated with slurry to obtain positive and negative electrode sheets, then cut the obtain...

Embodiment 2

[0039] The difference from the above-mentioned embodiment 1 is that a pressure of 200 Newtons per square meter is applied to the battery core body, and the resistance value of the battery core body under a DC voltage of 200 volts is tested.

Embodiment 3

[0041] The difference from the above-mentioned embodiment 1 is that a pressure of 500 Newtons per square meter is applied to the battery core body, and the resistance value of the battery core body under a DC voltage of 100 volts is tested.

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Abstract

The invention relates to a method for manufacturing a super capacitor, which comprises the following steps of: preparing slurry; coating; drying, slicing and rolling; manufacturing a battery body; detecting a micro short circuit, welding, loading a shell and injecting liquid; and detecting again. The method for manufacturing the super capacitor has the advantages of effectively preventing the micro short circuit of the battery and improving the yield of the super capacitor; and by manufacturing the super capacitor by the method, the product quality can be ensured, the production cost can be lowered, the final detecting time can be saved, and the benefit can be improved.

Description

technical field [0001] The invention relates to a method for manufacturing a supercapacitor. Background technique [0002] A supercapacitor is a new type of energy storage device between a physical capacitor and a battery. Its energy density is hundreds of times that of an ordinary physical capacitor, and its power density is dozens of times that of a battery. Due to the advantages of stability, reliability, low price, and especially suitable for high-current discharge, supercapacitors are widely used in fields such as automobiles, locomotives, tanks, power stations, and high-energy weapon systems. In the production process, the positive and negative electrode sheets are generally wound or stacked to form the battery body, and the positive and negative electrode sheets often have small burrs and other burrs during the cutting process, and there may be dust in the production workshop, and the diaphragm is relatively thick. Thin and brittle, and there may be particles of acti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/145
CPCY02E60/13
Inventor 郭丽宋朝文李晖吴林君范晶管道安袁斌
Owner 湖北长海新能源科技有限公司
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