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A kind of manufacturing method of supercapacitor

A technology for supercapacitors and manufacturing methods, which is applied in the manufacture of hybrid/electric double layer capacitors, etc., can solve the problems of low production environment requirements, high production environment requirements, and high production efficiency, and achieve high production environment requirements and low production environment requirements , Ease of mass production

Active Publication Date: 2018-04-24
ZHAOQING BERYL ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the deficiencies of the above-mentioned prior art, the present invention provides a method for manufacturing a supercapacitor. The production environment requirements are low, and the production efficiency is high. At the same time, it meets the requirements of ultra-low water and oxygen content in supercapacitors. It can effectively remove the water and oxygen inside the supercapacitor, especially the water and oxygen adsorbed on the foil surface and carbon surface. Oxygen molecules to reduce the fluctuation of supercapacitor leakage and various indicators after life test

Method used

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  • A kind of manufacturing method of supercapacitor
  • A kind of manufacturing method of supercapacitor
  • A kind of manufacturing method of supercapacitor

Examples

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Effect test

Embodiment 1

[0050] (1) Preparation of electrode sheet and electrolytic paper: store the electrolytic paper and nickel foil electrode sheet at 45°C for 12 hours; the width of the nickel foil electrode sheet is 125mm, of which the carbon width is 110mm, and the blank width is 15mm; the width of the electrolyte 120mm;

[0051] (2) Winding: The ambient humidity of the winding is 13.8g of water per cubic meter of air. Under this humidity, the nickel foil electrode sheet, electrolytic paper, nickel foil electrode sheet, and electrolytic paper are overlapped and wound together in the order Form the electrode core, the outer diameter of the rolled electrode core is controlled within 58mm, and the length is controlled within 140mm;

[0052] (3) Welding: Sweep and compact both ends of the electrode core with a sweeper, and the length after compaction is about 125mm; weld the negative current collector on the lug of the compacted end of the electrode core, and weld on the negative current collector ...

Embodiment 2

[0061] (1) Preparation of electrode sheets and electrolytic paper: store electrolytic paper and copper foil electrode sheets at 45°C for 18 hours; the width of copper foil electrode sheets is 125mm, of which the carbon width is 110mm, and the blank width is 15mm; the width of the electrolyte 120mm;

[0062] (2) Winding: The humidity of the environment where the winding is located contains 12g of water per cubic meter of air. Electrode core, the outer diameter of the rolled electrode core is controlled within 58mm, and the length is controlled within 140mm;

[0063] (3) Welding: Sweep and compact both ends of the electrode core with a sweeper, and the length after compaction is about 125mm; weld the negative current collector on the lug of the compacted end of the electrode core, and weld on the negative current collector Cover; Weld the positive current collector on the other end of the electrode core compacted ear;

[0064] (4) Vacuum drying: put the welded electrode core i...

Embodiment 3

[0072] (1) Preparation of electrode sheet and electrolytic paper: store the electrolytic paper and aluminum foil electrode sheet at 50°C for 24 hours; the width of the aluminum foil electrode sheet is 125mm, of which the carbon width is 110mm, and the blank width is 15mm; the width of the electrolyte is 120mm ;

[0073] (2) Winding: The humidity of the environment where the winding is located contains 11g of water per cubic meter of air. Under this humidity, the aluminum foil and aluminum foil electrode sheets, electrolytic paper, aluminum foil and aluminum foil electrode sheets, and electrolytic paper are overlapped and wound together to form Electrode core, the outer diameter of the rolled electrode core is controlled within 58mm, and the length is controlled within 140mm;

[0074] (3) Welding: Sweep and compact both ends of the electrode core with a sweeper, and the length after compaction is about 125mm; weld the negative current collector on the lug of the compacted end o...

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Abstract

The invention discloses a method for manufacturing a supercapacitor, which comprises the following steps: (1) winding an electrode core; (2) welding; (3) vacuum drying; (4) shelling and rolling to prepare a supercapacitor monomer; (5) Vacuum heat treatment: place the supercapacitor monomer in an environment of 100~120°C, evacuate to less than 6Pa, keep the pressure for 1~3.5h, then introduce dry nitrogen, and keep the pressure for 1~3.5h; this step is at least Repeat three times; (6) Add a sealing rubber stopper after the liquid injection, and seal the liquid injection hole. The method has low requirements on the production environment and high production efficiency. At the same time, at a suitable drying temperature, the method performs multiple times of drying nitrogen to replace the water and oxygen inside the supercapacitor, especially the water and oxygen adsorbed on the surface of the foil and the carbon surface. Oxygen molecules for effective heat removal to meet the requirements of ultra-low water and oxygen content in supercapacitors, which will not damage the materials inside the supercapacitor and affect its performance and stability, and reduce the fluctuation of supercapacitor leakage and various indicators after life tests .

Description

technical field [0001] The invention relates to the field of supercapacitors, in particular to a method for manufacturing a wound supercapacitor. Background technique [0002] Supercapacitors are green and environmentally friendly new energy storage components. With the advantages of environmental protection, high power density, and long service life, they are used in the start and stop of automobiles, hybrid vehicles, pure electric vehicles, wind power pitch, forklift power, and elevators. , Intelligent three watches, military industry, aerospace and other emerging fields have a wide range of applications. [0003] Due to its complex structure and many production processes, supercapacitors have extremely high requirements for water and oxygen content in the final product, especially for water. Therefore, the current process is to invest a huge amount of money to control the production environment. The moisture in the production environment is controlled to an extremely low...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/84
CPCY02E60/13
Inventor 刘泳澎马彦斌袁永张小波廖琼冯炯伟陈伟冬梁冠宏谢前飞
Owner ZHAOQING BERYL ELECTRONICS TECH