A kind of composite fabric electrode for flexible supercapacitor and its preparation and application

A fabric electrode and ternary composite technology, which is applied in the manufacture of hybrid capacitor electrodes, hybrid/electric double layer capacitors, etc., can solve the problems of low specific capacity and insufficient stability of flexible electrode materials, and achieve low performance requirements and high stability of equipment Sexuality, maintaining flexibility and strength

Active Publication Date: 2021-03-19
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a composite fabric electrode for a flexible supercapacitor and its preparation and application, to overcome the technical problems of low specific capacity and insufficient stability in the preparation of flexible electrode materials, and to combine metal oxide / carbon material composite nanoparticles Loaded onto the flexible textile substrate by electrochemical in-situ technology to build a three-dimensional regular network structure, greatly improving its capacitance performance and stability

Method used

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  • A kind of composite fabric electrode for flexible supercapacitor and its preparation and application
  • A kind of composite fabric electrode for flexible supercapacitor and its preparation and application
  • A kind of composite fabric electrode for flexible supercapacitor and its preparation and application

Examples

Experimental program
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Effect test

Embodiment 1

[0039] (1) Synthesis of organic ligands:

[0040] 1mmol 3,4,9,10-perylenetetracarboxylic dianhydride and 2mmol 2-aminobenzimidazole were ultrasonically dispersed in 40mL N,N-dimethylformamide, heated in an oil bath at 150°C for 10 days, centrifuged, washed with ethanol, get organic ligands;

[0041] (2) Preparation of MOFs / carbon material composite nanoparticles and metal oxide / carbon material composite nanomaterials:

[0042] Ultrasonic preparation of 3g / L carbon nanotube dispersion; disperse the organic ligand in (1) in 20mL N, N-dimethylformamide, and then add it to the carbon nanotube dispersion to obtain a mixed solution, organic ligand and metal The molar ratio of salt is 1:5; CoCl with a total ion concentration of 0.005mol / L 2 ·6H 2 O and NiCl 2 ·6H 2 Add O into the mixture, the molar ratio of the two is 2:1, ultrasonically disperse for 50min, react at 100°C for 24h, after the reaction, filter with suction, and dry at 80-100°C to obtain Ni / Co-MOFs / carbon nanotube c...

Embodiment 2

[0048] (1) Synthesis of organic ligands:

[0049] 1mmol 3,4,9,10-perylenetetracarboxylic dianhydride and 6mmol 5-aminobenzimidazole were ultrasonically dispersed in 40mL N,N-dimethylformamide, heated in an oil bath at 140°C for 3 days, centrifuged, washed with ethanol, get organic ligands;

[0050] (2) Preparation of MOFs / carbon material composite nanoparticles and metal oxide / carbon material composite nanomaterials:

[0051] Ultrasonic preparation of 5g / L carbon nanotube dispersion; disperse the organic ligand in (1) in 20mL methanol, and then add it to the carbon nanotube dispersion to obtain a mixed solution, the molar ratio of organic ligand and metal salt is 1:3 ; CoCl with a total ion concentration of 0.01mol / L 2 ·6H 2 O and NiCl 2 ·6H 2 Add O into the mixture, the molar ratio of the two is 2:1, ultrasonically disperse for 50min, react at 100°C for 24h, after the reaction, filter with suction, and dry at 80-100°C to obtain Ni / Co-MOFs / carbon nanotube composite Nanop...

Embodiment 3

[0057] (1) Synthesis of organic ligands:

[0058] 1mmol 3,4,9,10-perylenetetracarboxylic dianhydride and 2mmol 2-aminoimidazole were ultrasonically dispersed in 40mL N,N-dimethylformamide, heated in an oil bath at 150°C for 10 days, centrifuged, washed with ethanol, and organic Ligand;

[0059] (2) Preparation of MOFs / carbon material composite nanoparticles and metal oxide / carbon material composite nanomaterials:

[0060] Ultrasonic preparation of 10g / L carbon nanotube dispersion; disperse the organic ligand in (1) in 20mL methanol, and then add it to the carbon nanotube dispersion to obtain a mixed solution, the molar ratio of organic ligand and metal salt is 2:1 ; MnCl with a total ion concentration of 0.01mol / L 2 4H 2 O and NiCl 2 ·6H 2 Add O into the mixture, the molar ratio of the two is 1:1, ultrasonically disperse for 50min, react at 100°C for 36h, after the reaction, filter with suction, and dry at 80-100°C to obtain Ni / Mn-MOFs / carbon nanotube composite Nanoparti...

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Abstract

The invention relates to a composite fabric electrode for flexible super capacitors and a preparation and an application thereof. The electrode is made of a conductive polymer / metal oxide / carbon material ternary composite fabric. According to the preparation method, the composite fabric electrode is obtained through an electrochemical method by impregnating a conductive fabric in a dispersion containing a metal oxide / carbon material and pyrrole. The flexible electrode prepared in the invention has high specific capacitance and high stability, and has a good application prospect in portable andfoldable flexible electronic and energy devices.

Description

technical field [0001] The invention belongs to the field of flexible electrode materials and their preparation and application, in particular to a composite fabric electrode for a flexible supercapacitor and its preparation and application. Background technique [0002] With the development of electronic devices towards portable, foldable, wearable, etc., supercapacitors used as driving power sources have attracted great attention and become a research hotspot. At present, the development of flexible supercapacitors still faces the challenge of relatively low specific capacitance, and the study of electrode materials that determine their properties is the key to solving this problem. [0003] Among electrode active materials, carbon materials have large specific surface area, excellent electrical conductivity, and high chemical and electrochemical stability. However, because of the energy storage mechanism of the electric double layer, the increase in specific capacitance i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/26H01G11/86H01G11/30H01G11/36H01G11/46H01G11/48
CPCH01G11/26H01G11/30H01G11/36H01G11/46H01G11/48H01G11/86Y02E60/13
Inventor 赵红赵亚萍蔡再生周曼靳凯丽翟世雄
Owner DONGHUA UNIV
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