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Method for manufacturing corrosion-resistant electrode of super capacitor

A technology for supercapacitors and manufacturing methods, which is applied in the field of electronics, can solve problems such as collector electrode and polarized electrode corrosion, and achieve the effects of stabilizing capacitor performance and ensuring bonding strength

Inactive Publication Date: 2010-05-19
锦州凯美能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems existing in the current supercapacitor electrode and its production technology, the invention provides a method for manufacturing a corrosion-resistant electrode of a supercapacitor, which solves the corrosion problem of the collector electrode and the polarized electrode

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The collector material treating agent is an aqueous solution of a substance having the following general formula (I).

[0026] R 2 HNC 3 h 6 Si(OR 1 ) 3 (I)

[0027] R1 :-CH 3

[0028] R 2 :-H

[0029] The mass concentration of the treatment agent aqueous solution is 50%.

[0030] The binder in the polarized electrode is commonly used polytetrafluoroethylene.

[0031] The active material in the polarized electrode uses electrochemically inactive high specific surface area activated carbon, and the specific surface area of ​​activated carbon is 2000m 2 / g.

[0032] Since the polarized electrode impedance should be low, adding graphite conductive material requires a particle size of 3 μm.

[0033] To sum up, the ratio of raw materials for preparing the polarized electrode of the present invention is calculated by mass ratio: 10% of binder, 80% of active material, and 10% of conductive material.

[0034] The metal collector is metal aluminum with a purity of m...

Embodiment 2

[0045] The collector material treating agent is an aqueous solution of a substance having the following general formula (I).

[0046] R 2 HNC 3 h 6 Si(OR 1 ) 3 (I)

[0047] R 1 :-CH 2 CH 3

[0048] R 2 :-CH 3

[0049] The mass concentration of the treatment agent aqueous solution is 90%.

[0050] The binder in the polarized electrode is commonly used polyvinylidene fluoride.

[0051] The active material in the polarized electrode uses electrochemically inactive high specific surface area carbon black, and the specific surface area of ​​carbon black is 200m 2 / g.

[0052] Due to the low impedance of the polarized electrode, acetylene black conductive material is added, and the particle size of the conductive material is required to be 5 μm.

[0053] To sum up, the ratio of raw materials for preparing the polarized electrode of the present invention is calculated by mass ratio: 20% of binder, 60% of active material, and 20% of conductive material.

[0054] The me...

Embodiment 3

[0063] The collector material treating agent is an aqueous solution of a substance having the following general formula (I).

[0064] R 2 HNC 3 h 6 Si(OR 1 ) 3 (I)

[0065] R 1 :-CH 2 CH 2 CH 3

[0066] R 2 :-CH 2 CH 3

[0067] The mass concentration of the treatment agent aqueous solution is 0.5%.

[0068] The binder in the polarized electrode is commonly used sodium carboxymethyl cellulose.

[0069] The active material in the polarized electrode uses electrochemically inactive high specific surface area carbon nanotubes, and the specific surface area of ​​carbon nanotubes is 300m 2 / g.

[0070] Since the polarized electrode impedance should be low, adding graphite conductive material requires the particle size of the conductive material to be 1 μm.

[0071] In summary, the ratio of raw materials for preparing the polarized electrode of the present invention is calculated by mass ratio: 2% of binder, 96% of active material, and 2% of conductive material.

[...

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Abstract

The invention discloses a method for manufacturing a corrosion-resistant electrode of a super capacitor, comprising the following steps of: carrying out alternating current double-side corrosion on a metal collector electrode to obtain a corrosion collector electrode; soaking the corrosion collector electrode into a water solution containing a substance with the general formula of R2HNC3H6Si(OR1)3 to treat; dissolving a bonding material into a solvent; dispersing an active material and a conductive material to manufacture slurry; coating the slurry on double surfaces of the corrosion collector electrode; drying and pressing the slurry to 30-300 microns thick to form a strip-shaped electrode; cutting the strip-shaped electrode into two strip-shaped electrodes with the same sizes; riveting the two electrodes with lead wires, and placing an electrode septum between the two strip-shaped electrodes; and winding into a core. When the electrode manufactured in the method is applied to the super capacitor, an aluminum foil can not be obviously corroded under an operation condition of a heavy current so as to ensure the adhesion intensity between the collector electrode and a polarized electrode and stabilize the performance of the capacitor.

Description

technical field [0001] The invention belongs to the technical field of electronics, and relates to a method for manufacturing a supercapacitor, in particular to a method for manufacturing an electrode of a supercapacitor. Background technique [0002] As a green energy storage product, supercapacitors have been widely used in digital products such as video cameras, cameras, PDAs, mobile phones, notebook computers, smart meters, and tax control machines due to their high power, long life, and wide operating temperature range. application. Especially the energy crisis that broke out in recent years has caused countries to pay attention to new energy products, especially electric vehicles. All major automobile factories in the world are developing hybrid electric vehicles or electric vehicles. Supercapacitors have high power, long life, and wide operating temperature range. Such features are very suitable for application in electric vehicles, which can improve the power output...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/04H01G9/058H01G11/86
CPCY02E60/13
Inventor 李文生姚建勋常亮格根塔娜
Owner 锦州凯美能源有限公司