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A kind of supercapacitor electrode composite material and preparation method thereof

A technology of supercapacitors and composite materials, applied in the fields of hybrid capacitor electrodes, hybrid/electric double layer capacitor manufacturing, nanotechnology for materials and surface science, etc. Capacitance retention rate and other issues, to achieve the effect of good capacity retention rate, strong conductivity stability, good electrochemical energy storage performance

Inactive Publication Date: 2020-07-31
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It can be seen that the conductivity of the porous coordination polymer / conductive polymer composite constructed in this article changes greatly with the influence of the external oxidizing medium, and has gas-sensing properties, which is suitable for the construction of gas-sensing sensors, but its Poor conductivity stability will seriously affect the capacity retention rate during electrochemical cycling, so it is not suitable as an electrode material for supercapacitors

Method used

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  • A kind of supercapacitor electrode composite material and preparation method thereof
  • A kind of supercapacitor electrode composite material and preparation method thereof
  • A kind of supercapacitor electrode composite material and preparation method thereof

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Embodiment 1

[0050] This embodiment provides a method for preparing a supercapacitor electrode composite material, which specifically includes the following steps:

[0051] (1) Preparation of nickel trimellitate:

[0052] First, fully dissolve 1.27g nickel nitrate hexahydrate in 50ml ethanol, then pour 0.513g trimellitic acid into it, stir to dissolve; then transfer the resulting solution into a 100ml reactor, react at 150℃ for 24 hours, pump The solid powder obtained by filtration was washed three times with alcohol, and dried under vacuum at 80°C for 12 hours to obtain the product nickel trimellitate MOFs;

[0053] (2) Preparation of nickel trimellitate / MOFs:

[0054] In a closed container, take 0.15g of the obtained nickel trimellitate MOFs and place it on a filter paper with a diameter of 50mm and a pore size of 0.22um, and place it on a high place. The schematic diagram of the laboratory equipment is as follows figure 1 , Take 1ml EDOT and place under it, fumigate at room temperature 30℃ for ...

Embodiment 2

[0060] (1) Preparation of nickel trimellitate:

[0061] First, fully dissolve 1.27g nickel nitrate hexahydrate in 50ml ethanol, then pour 0.513g trimellitic acid into it, stir to dissolve; then transfer the resulting solution into a 100ml reactor, react at 150℃ for 24 hours, pump The solid powder obtained by filtration was washed three times with alcohol, and dried under vacuum at 80°C for 12 hours to obtain the product nickel trimellitate MOFs;

[0062] (2) Preparation of nickel trimellitate / MOFs:

[0063] In a closed container, take 0.15g of the obtained nickel trimellitate MOFs and place it on a filter paper with a diameter of 50mm and a pore size of 0.22um, and place it on a high place. The schematic diagram is as follows figure 1 , Take 1ml EDOT and place under it, fumigate at room temperature 30℃ for 12 hours; place 0.3g I on the EDOT position 2 , High temperature oxidation at 100℃ for 10 hours; then at I 2 Place 1ml of 12mol / L concentrated hydrochloric acid in the place where ...

Embodiment 3

[0065] (1) Preparation of nickel trimellitate:

[0066] First, fully dissolve 1g nickel nitrate hexahydrate in 50ml ethanol, then pour 0.3g trimesic acid into it, stir to dissolve; then transfer the resulting solution into a 100ml reactor, react at 150℃ for 12 hours, and filter with suction Obtain the solid powder, clean the solid powder with alcohol three times, and vacuum dry at 80°C for 12 hours to obtain the product nickel trimellitate MOFs;

[0067] (2) Preparation of nickel trimellitate / MOFs:

[0068] In a closed container, take 0.15g of the obtained nickel trimellitate MOFs and place it on a filter paper with a diameter of 50mm and a pore size of 0.22um, and place it on a high place. The schematic diagram is as follows figure 1 , Take 0.5ml EDOT and place under it, fumigate at room temperature 20℃ for 10 hours; place 0.3g I on the EDOT position 2 , High temperature oxidation at 90℃ for 8 hours; then at I 2 Place 0.5ml of 12mol / L concentrated hydrochloric acid at the place wher...

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Abstract

A supercapacitor electrode composite material and a preparation method thereof belong to the technical field of energy storage and conversion. The electrode composite material provided by the present invention is a nanosheet material composed of a metal organic framework compound and an in-situ polymerized conductive polymer in the pores of the metal organic framework compound, wherein the conductive polymer is composed of iodide ion and chloride ion or It is doped twice by iodide ions and acetate ions. The present invention combines the advantages of high specific surface area of ​​metal-organic framework compounds, rich reactive sites and good conductivity of conductive polymers, and uses metal-organic framework compounds, conductive polymers, iodine simple substance, hydrochloric acid or glacial acetic acid as raw materials, and adopts a gas phase method to Conducting polymer monomers are evaporated to metal-organic frameworks, followed by double doping. The electrode composite material provided by the invention is used for supercapacitor electrodes, has the characteristics of large capacity, good energy storage performance, strong stability, etc., and has simple preparation process, low cost, and is convenient for mass production.

Description

Technical field [0001] The invention belongs to the technical field of energy storage and conversion, and specifically relates to a supercapacitor electrode composite material and a preparation method thereof. Background technique [0002] Supercapacitor (SC) is a new type of energy storage device between traditional capacitors and rechargeable batteries. Its power density is higher than that of rechargeable batteries. At the same time, it has many advantages such as high charge and discharge efficiency, long service life and environmental friendliness. . Although significant progress has been made in the research and development of electrode materials for supercapacitors, the low specific surface area and porosity of currently commonly used electrode materials inhibit the direct contact of active components with the electrolyte, reducing the ability of electron transfer and ion transfer of intelligence, thereby As a result, it is difficult to increase the energy density and pow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/24H01G11/26H01G11/48H01G11/86B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00H01G11/24H01G11/26H01G11/48H01G11/86Y02E60/13
Inventor 杨亚杰张成光李成维毛喜玲何鑫徐建华
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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