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Buckle type electrochemical capacitor and its manufacture method

A supercapacitor and buckle-type technology, which is applied in the field of supercapacitors and its manufacturing, can solve problems affecting the normal operation of supercapacitors, capacity loss, slow electronic conductance, etc., to improve high-current discharge performance, reduce polarization, and reduce internal The effect of resistance

Inactive Publication Date: 2008-04-23
SHANDONG SHENGONGHAITE ELECTRONICS TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, for conventional button-type supercapacitors, the positive and negative electrode sheets are very thick, generally 0.5mm to 1mm. Due to the large internal resistance, the voltage drop caused by the internal resistance is too large when the large current is discharged. Large, resulting in serious capacity loss, and there is also a polarization phenomenon caused by the button-type pole piece being too thick and slow electronic conductance, which affects the normal operation of the supercapacitor. This is also a problem that button-type electrochemical capacitors urgently need to solve.

Method used

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  • Buckle type electrochemical capacitor and its manufacture method
  • Buckle type electrochemical capacitor and its manufacture method

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Embodiment 1

[0093] The button super capacitor of the present invention is manufactured through the following method steps.

[0094] (1) The raw materials are proportioned according to the following parts by weight:

[0095] Porous activated carbon 85;

[0096] Acetylene carbon black 5;

[0097] Homopolyvinylidene fluoride (PVDF) powder 10;

[0098] Production method: first dissolve 10 parts by weight of homopolyvinylidene fluoride (PVDF) powder in 250 parts by weight of nitrogen-methylpyrrolidone (NMP), and then combine 85 parts by weight of porous activated carbon and 5 parts by weight of Acetylene carbon black is mixed, stirred and dispersed to form a uniform slurry.

[0099] (2) Use a casting machine to coat the slurry uniformly on the surface of the metal aluminum foil according to the requirements of the electrode size of the manufactured supercapacitor. The coating size can be achieved by controlling the casting machine, and vacuum drying at 130°C for 5-60 minutes ; According to the sam...

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Abstract

The button-type electrochemical capacitor comprises: a button-type anode cover and a button-type cathode cover, and the button-type anode cover is tightly coupled to the button-type cathode cover; inside the button-type anode cover and the button-type cathode cover, there are anode piece, cathode piece, multi-pore isolator and electrolyte; the anode piece is made by means of coating the anode active materials on the anode current collector; the cathode piece is made by means of coating the cathode active materials on the negative current collector; the anode piece is connected to the button-type anode cover; the cathode piece is connected to the button-type cathode cover; said anode piece, multi-pore isolator film and the cathode piece are winded together to form a square coil core.

Description

Technical field [0001] The invention discloses a super capacitor and a manufacturing method thereof, in particular to a button type super capacitor and a manufacturing method thereof. Background technique [0002] Supercapacitors are a new type of environmentally friendly energy storage device between traditional capacitors and secondary batteries that have emerged in recent years. While retaining the high power density characteristics of traditional capacitors, their electrostatic capacity can reach farads or even thousands of farads. , So it has the characteristics of high energy density. At the same time, supercapacitors also have the advantages of fast charge and discharge speed, high charge and discharge efficiency, long life, good safety, and environmental friendliness. It is a new, practical, efficient, clean and renewable New energy storage devices. [0003] Button super capacitors have broad applications in many fields. At present, the most widely used part of button sup...

Claims

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Application Information

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IPC IPC(8): H01G9/00H01G9/04H01G9/035H01M10/00H01M4/02H01M10/40H01M14/00
CPCY02E60/122Y02E60/10Y02E60/13
Inventor 李青海吴曲勇高影
Owner SHANDONG SHENGONGHAITE ELECTRONICS TECH
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