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Method for manufacturing mixed-type supercapacitor in ink-jet printing mode

A technology of hybrid capacitors and supercapacitors, applied in the manufacture of hybrid/electric double layer capacitors, etc., can solve the problems of energy density defects of hybrid capacitors, low utilization rate of active materials, uneven distribution of active materials, etc., to achieve high energy Density, loose pore size and long service life

Active Publication Date: 2015-03-11
BOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when making hybrid supercapacitor electrodes, the traditional coating method is likely to cause a large amount of agglomeration of active materials and uneven distribution of active materials, resulting in low utilization of active materials and resulting in defects in the energy density of hybrid capacitors.

Method used

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  • Method for manufacturing mixed-type supercapacitor in ink-jet printing mode
  • Method for manufacturing mixed-type supercapacitor in ink-jet printing mode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] As shown in the figure, the hybrid supercapacitor has a casing 4, and the casing 4 is provided with a positive electrode 1, a negative electrode 2, and a separator 3 arranged between the positive electrode 1 and the negative electrode 2, and the positive electrodes are sequentially arranged from left to right It is composed of conductive carbon black-conductive graphite carbon electrode material electrode 101, lithium battery positive electrode material electrode 102, conductive carbon black-conductive graphite carbon electrode material electrode 101, metal oxide material electrode 103 and conductive carbon black-conductive graphite carbon electrode material electrode 101. .

[0046] 1. Preparation of carbon electrode materials

[0047] 1.1. Preparation of Ketjen black slurry

[0048] Mix 2 g of Ketjen black with 2 g of deionized water, stir for 15 minutes, and prepare a Ketjen black slurry;

[0049] 1.2. Preparation of conductive agent

[0050] Mix 9.6g of Ketjen bl...

Embodiment 2

[0077] As shown in the figure, the structure of the hybrid supercapacitor is the same as that of Example 1;

[0078] 1. Preparation of carbon electrode materials

[0079] 1.1. Preparation of Ketjen black slurry

[0080] Mix 2 g of Ketjen black with 3 g of deionized water, stir for 30 min, and prepare a Ketjen black slurry;

[0081] 1.2. Preparation of conductive agent

[0082] Mix 10.4g Ketjen black, 2g conductive graphite and 8g conductive carbon black evenly to prepare a conductive agent;

[0083] 1.3. Preparation of sodium carboxymethyl cellulose colloidal solution

[0084] Add 0.2 g of sodium carboxymethyl cellulose into 9.8 g of deionized water and mix well to prepare a sodium carboxymethyl cellulose colloidal solution;

[0085] 1.4. Preparation of styrene-butadiene rubber emulsion

[0086] Add 8g of styrene-butadiene rubber to 12g of deionized water to prepare a styrene-butadiene rubber emulsion;

[0087] 1.5. Preparation of carbon electrode material slurry

[008...

Embodiment 3

[0109] As shown in the figure, the structure of the hybrid supercapacitor is the same as that of Example 1;

[0110] 1. Preparation of carbon electrode materials

[0111] 1.1. Preparation of Ketjen black slurry

[0112] Mix 2 g of Ketjen black with 2.4 g of deionized water, and stir for 20 minutes to prepare a Ketjen black slurry;

[0113] 1.2. Preparation of conductive agent

[0114] Mix 10g Ketjen black, 2g conductive graphite and 7.6g conductive carbon black evenly to prepare a conductive agent;

[0115] 1.3. Preparation of sodium carboxymethyl cellulose colloidal solution

[0116] Add 0.25 g of sodium carboxymethyl cellulose into 9.75 g of deionized water and mix well to prepare a sodium carboxymethyl cellulose colloidal solution;

[0117] 1.4. Preparation of styrene-butadiene rubber emulsion

[0118] Add 8g of styrene-butadiene rubber to 10g of deionized water to prepare a styrene-butadiene rubber emulsion;

[0119] 1.5. Preparation of carbon electrode material slur...

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Abstract

The invention discloses a method for manufacturing a mixed-type supercapacitor in an ink-jet printing mode. The method includes the steps that conductive carbon black-conductive graphite carbon electrode material pulp, lithium-ion electric positive pulp and metal oxide material slurry are poured into three ink boxes of a printer respectively, a current collector is coated with the conductive carbon black-conductive graphite carbon electrode material pulp, the lithium-ion electric positive pulp and the metal oxide material slurry through the ink-jet printing technology, and a positive electrode of the mixed-type supercapacitor is manufactured through vacuum drying; active carbon-graphite carbon electrode material pulp is poured into an ink box of the printer, the current collector is coated with the active carbon-graphite carbon electrode material pulp through the ink-jet printing technology, and a negative electrode of the mixed-type supercapacitor is manufactured through vacuum drying; the manufactured positive electrode of the mixed-type supercapacitor and the manufactured negative electrode of the mixed-type supercapacitor are separated from each other through a membrane and filled with electrolyte so that the mixed-type supercapacitor can be assembled. The method is simple in technology, active substances of the manufactured positive electrode of the mixed-type supercapacitor and the manufactured negative electrode of the mixed-type supercapacitor are loose in aperture and evenly distributed, and the utilization rate of the active substances of the electrodes is effectively improved.

Description

technical field [0001] The invention belongs to the field of supercapacitor preparation, in particular to a method for preparing a hybrid supercapacitor by inkjet printing. Background technique [0002] Supercapacitors are a new type of energy storage device between traditional capacitors and batteries. Compared with traditional capacitors, supercapacitors have the characteristics of large capacity, high energy density, wide operating temperature range and long service life, and compared with batteries, they have the characteristics of high power density and good cycle life, and are environmentally friendly. No pollution. But the energy density of supercapacitors is much lower than that of batteries. [0003] The energy density of supercapacitors can be increased by improving the electrochemical properties of the material or increasing the electrode voltage. Hybrid supercapacitors have different energy storage mechanisms of positive and negative electrodes during charging...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/86H01G11/84
CPCY02E60/13
Inventor 蔡克迪姜海静赵雪班水和金振兴
Owner BOHAI UNIV
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