Production method of electrode of supercapacitor

A supercapacitor and electrode technology, which is applied in the field of supercapacitor electrode preparation, can solve the problems of slow preparation speed, low preparation efficiency, complex preparation of supercapacitor electrodes, etc., and achieve the effect of short preparation period and low cost

Inactive Publication Date: 2015-04-29
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims to solve the problems of complex preparation, slow preparation speed and low preparation eff

Method used

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  • Production method of electrode of supercapacitor
  • Production method of electrode of supercapacitor
  • Production method of electrode of supercapacitor

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specific Embodiment approach 1

[0036] Specific implementation mode one: see figure 1 Illustrate this embodiment, the preparation method of a kind of supercapacitor electrode described in this embodiment, it comprises the steps:

[0037] Step 1: Add 19 parts of electrode active material powder and 0.5 to 2.5 parts of organic binder into 800 to 2000 parts of absolute ethanol in parts by mass, and disperse by ultrasonic for 30 minutes to obtain a stable and uniform electrode powder suspension;

[0038] Wherein, the organic binder is a terpineol solution of ethyl cellulose, and the mass fraction of ethyl cellulose in the organic binder is 80% to 95%;

[0039] Step 2: Submerge the electrode collector in the electrode powder suspension prepared in Step 1, and let it stand for 5 seconds, then take out the electrode collector and blow dry;

[0040] Step 3: Repeat the above step 2 3 to 8 times to complete the preparation of the supercapacitor electrode.

[0041]In this embodiment, the electrode powder suspension i...

specific Embodiment approach 2

[0044] Specific embodiment two: the difference between this embodiment and the preparation method of a supercapacitor electrode described in specific embodiment one is that the electrode active material powder is manganese dioxide powder, ruthenium oxide, nickel oxide, nickel hydroxide , cobalt oxide, vanadium oxide, tin oxide or iron oxide.

specific Embodiment approach 3

[0045] Specific embodiment three: the difference between this embodiment and the preparation method of a supercapacitor electrode described in specific embodiment one is that the electrode current collector is a planar porous nickel foam, and the planar porous nickel foam is 5cm long. , the width is 5cm, the thickness is 1.5mm, and step 11 is added between step 1 and step 2;

[0046] Step 11: Place the planar porous nickel foam in absolute ethanol for 5 minutes for ultrasonic cleaning, then wash it with deionized water, and finally immerse it in acetone for ultrasonic dispersion for 5 minutes, blow dry it, and dry it in the air for use.

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Abstract

The invention relates to a production method of an electrode of a supercapacitor and solves the problems that the existing supercapacitor electrodes are complex to produce, slow to produce and low in production efficiency. The production method includes the steps of 1, by weight, adding 19 parts of powder of electrode active material and 0.5 to 2.5 parts of organic binder to 800 to 2000 parts of absolute ethyl alcohol, performing ultrasonic dispersion for 30 min to obtain stable and uniform electrode powder suspension; 2, soaking an electrode current collector in the electrode powder suspension made in the step 1, allowing standing for 5s, extracting the electrode current collector, and performing blow-drying; 3, repeating the step 2 three to eight times to produce the electrode of the supercapacitor. The organic binder is ethyecellulose terpilenol solution; the ethyecellulose accounts for, by weight, 80 to 95% of the organic binder.

Description

technical field [0001] The invention relates to a preparation method of a supercapacitor electrode. Background technique [0002] The traditional high-energy consumption and low-efficiency energy utilization methods will not only cause serious environmental pollution, but also cause the rapid depletion of fossil energy such as coal, oil and natural gas. Therefore, finding alternative energy storage / conversion devices with high power density and high energy density has received increasing attention. As an alternative to fossil energy, renewable energy such as solar energy and wind energy has the advantages of low cost, cleanliness and high efficiency. However, most renewable energy sources are decentralized and unstable, and there is still some residual energy besides being converted into electrical energy. In order to solve the problem of surplus energy storage and power supplement during the peak period of power consumption, supercapacitor is an ideal choice, which can be...

Claims

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Application Information

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IPC IPC(8): H01G11/86
CPCH01G11/00H01G11/86Y02E60/13
Inventor 张耀辉吕静波吕喆黄喜强王志红魏波朱星宝
Owner HARBIN INST OF TECH
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