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Supercapacitor sizing manufacturing method

A supercapacitor and slurry technology, which is applied in the manufacture of hybrid/electric double layer capacitors, etc., can solve problems such as imperfect preparation methods, and achieve the effects of good slurry coating performance, increased energy density, and short dispersion time

Inactive Publication Date: 2014-04-16
718TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In view of the imperfection of the existing supercapacitor slurry preparation method, the purpose of the present invention is to provide a supercapacitor slurry preparation method

Method used

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  • Supercapacitor sizing manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A method for preparing supercapacitor slurry, the method steps are as follows:

[0042] 1. Weigh LA133 and 20g CMC with a solid content of 50g, add them to 2800g deionized water, and stir for 30min with a vacuum stirrer;

[0043] 2. Add 200g of conductive carbon black while stirring, stir evenly and stir with a vacuum mixer for 30min;

[0044] 3. Then use a high-shear dispersing emulsifier to stir for 10 minutes at a speed of 20000r / min;

[0045] 4. Weigh 730g of activated carbon, add in order while stirring, stir with a vacuum mixer for 30min after stirring evenly;

[0046] 5. Then use a high-shear dispersing emulsifier to stir for 10 minutes at a speed of 20000r / min;

[0047] 6. Vacuumize and stir with a vacuum stirrer for 40 minutes to obtain the supercapacitor slurry.

[0048] figure 1 and figure 2 It is a scanning electron microscope (SEM) picture of the slurry. It can be seen from the figure that carbon black is evenly distributed between and on the activate...

Embodiment 2

[0050] A method for preparing supercapacitor slurry, the method steps are as follows:

[0051] 1. Weigh LA132 and 30g CMC with a solid content of 70g, add them to 2600g deionized water, and stir with a vacuum mixer for 30min;

[0052] 2. Add 300g of conductive carbon black while stirring, stir evenly and stir with a vacuum mixer for 30min;

[0053] 3. Then use a high-shear dispersing emulsifier to stir for 10 minutes at a speed of 20000r / min;

[0054] 4. Weigh 600g of ordered mesoporous carbon, add in order while stirring, and stir with a vacuum mixer for 30min after stirring evenly;

[0055] 5. Then use a high-shear dispersing emulsifier to stir for 10 minutes at a speed of 20000r / min;

[0056] 6. Vacuumize and stir with a vacuum stirrer for 40 minutes to obtain the supercapacitor slurry.

[0057] After SEM testing, it can be observed that the conductive carbon black is evenly distributed on the surface of the ordered mesoporous carbon.

Embodiment 3

[0059] A method for preparing supercapacitor slurry, the method steps are as follows:

[0060] 1. Weigh LA133 with a solid content of 4g and 1g of CMC, add it to 280g of deionized water, and stir for 10 minutes with a vacuum stirrer;

[0061] 2. Add 10g of conductive carbon black while stirring, stir evenly and then stir with a vacuum mixer for 10min;

[0062] 3. Then use a high-shear dispersing emulsifier to stir for 2 minutes at a speed of 20000r / min;

[0063] 4. Add 85g of graphene while stirring, stir evenly and stir with a vacuum mixer for 10min;

[0064] 5. Then use a high-shear dispersing emulsifier to stir for 5 minutes at a speed of 20000r / min;

[0065] 6. Vacuumize and stir with a vacuum stirrer for 20 minutes to obtain the supercapacitor slurry.

[0066] After SEM testing, it can be observed that the conductive carbon black is evenly distributed on the graphene surface.

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Abstract

The invention relates to a supercapacitor sizing manufacturing method, and belongs to the field of supercapacitors. According to the method, materials are mixed and combined through a high-shear dispersing emulsifying machine and vacuum stirring. The supercapacitor sizing manufacturing method includes the steps that an adhesive and a solution are placed into a mixing tank, and vacuum stirring is carried out for 10-30 minutes; a conductive additive is added during mixing, and vacuum stirring is carried out for another 10-30 minutes; the high-shear dispersing emulsifying machine is used for shearing and dispersing for 2-10 minutes; an active material is added during mixing, and vacuum stirring is carried out for 10-30 minutes; the high-shear dispersing emulsifying machine is used for shearing and dispersing for 5-10 minutes, vacuum stirring is carried out for 20-40 minutes, and accordingly a sizing is obtained. According to the method, dispersion uniformity of matter in the sizing is improved, sizing dispersing time is short, coatability of the prepared sizing is good, and improvement of energy density, cycle performance and uniformity of a supercapacitor is facilitated.

Description

technical field [0001] The invention relates to a method for preparing supercapacitor slurry, belonging to the field of supercapacitors. Background technique [0002] A supercapacitor is a new type of energy storage element between traditional electrostatic capacitors and rechargeable batteries. Its energy density is smaller than that of batteries, but its power density and cycle life are much larger than batteries, and it has the advantages of fast charging and discharging, no environmental pollution, etc. It has been widely studied and applied, and may develop into a new, efficient and practical energy in the future. storage device. [0003] Slurry preparation is an important process in the production process of supercapacitors, and the quality of the slurry directly affects the performance of supercapacitors. In the traditional slurry preparation method, it is difficult to disperse the active material and the conductive agent during the stirring process. The agglomerati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/84
CPCY02E60/13
Inventor 朱春来李金香武波涛陈颖王兴军张绍厂何捍卫
Owner 718TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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