Method for preparing multilayer nano composite material and super capacitor electrode sheet

A nanocomposite material and supercapacitor technology, which is applied in the manufacture of hybrid capacitor electrodes, hybrid capacitor current collectors, hybrid/electric double layer capacitors, etc., to achieve the effects of facilitating industrial promotion, increasing capacity and energy density, and simplifying the preparation process

Inactive Publication Date: 2018-01-23
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, MoS has not been used in the existing technology 2 / RuO 2 Fabrication of supercapacitors from nanocomposites

Method used

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  • Method for preparing multilayer nano composite material and super capacitor electrode sheet
  • Method for preparing multilayer nano composite material and super capacitor electrode sheet
  • Method for preparing multilayer nano composite material and super capacitor electrode sheet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Step 1: Preparation of MoS 2 nanomaterials

[0032] Add high-purity molybdenum powder into the beaker, drop by drop 15-20mlH in ice-water bath 2 o 2 , Stir the solution magnetically for more than 4 hours, then gradually drop the obtained molybdenum oxide precursor solution into 15-20ml thiourea solution under magnetic stirring and continue to stir for more than 1 hour. After 8 hours of hydrothermal reaction at 200 ° C, suction filtration, water washing, alcohol Wash and dry at 80°C for 24 hours to obtain molybdenum disulfide nanomaterials.

[0033] Step 2: Preparation of MoS 2 / RuO 2 Nanocomposite

[0034] Grind the hydrated ruthenium trichloride evenly and dissolve it in 50ml water to obtain a 20mg / ml ruthenium trichloride solution. The MoS prepared in step 1 2 Nanomaterials were mixed in a certain proportion into ruthenium trichloride solution, stirred for 0.5h, hydrothermally reacted at 180°C for 12h, suction filtered, washed with water, washed with alcohol, an...

Embodiment 2

[0045] Step 1: Preparation of MoS 2 nanomaterials

[0046] Add high-purity molybdenum powder into the beaker, drop by drop 15-20mlH in ice-water bath 2 o 2 , Stir the solution magnetically for more than 4 hours, then gradually drop the obtained molybdenum oxide precursor solution into 15-20ml thiourea solution under magnetic stirring and continue to stir for more than 1 hour. After 8 hours of hydrothermal reaction at 200 ° C, suction filtration, water washing, alcohol Wash and dry at 80°C for 24 hours to obtain molybdenum disulfide nanomaterials.

[0047] Step 2: Preparation of MoS 2 / RuO 2 Nanocomposite

[0048] Grind the hydrated ruthenium trichloride evenly and dissolve it in 50ml water to obtain a 20mg / ml ruthenium trichloride solution. The MoS prepared in step 1 2 Nanomaterials were mixed in a certain proportion into ruthenium trichloride solution, stirred for 0.5h, hydrothermally reacted at 180°C for 12h, suction filtered, washed with water, washed with alcohol, an...

Embodiment 3

[0059] Step 1: Preparation of MoS 2 nanomaterials

[0060] Add high-purity molybdenum powder into the beaker, drop by drop 15-20mlH in ice-water bath 2 o 2 , stir the solution magnetically for more than 4 hours, then gradually drop the obtained molybdenum oxide precursor solution into 15-20ml thiourea solution under magnetic stirring and continue to stir for more than 1 hour. After 8 hours of hydrothermal reaction at 200 ° C, suction filtration, water washing, alcohol Wash and dry at 80°C for 24h to obtain MoS 2 nanomaterials.

[0061] Step 2: Preparation of MoS 2 / RuO 2 Nanocomposite

[0062] Grind the hydrated ruthenium trichloride evenly and dissolve it in 50ml water to obtain a 20mg / ml ruthenium trichloride solution. The MoS prepared in step 1 2 Nanomaterials were mixed in a certain proportion into ruthenium trichloride solution, stirred for 0.5h, hydrothermally reacted at 180°C for 12h, suction filtered, washed with water, washed with alcohol, and dried at 180°C fo...

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Abstract

The invention provides a method for preparing a multilayer nano composite material and a super capacitor electrode sheet, which includes the following steps: first, mixing and adding molybdenum powderand hydrogen peroxide to thiourea solution and carrying out hydrothermal reaction to prepare a few layers of MoS2 nano material; then, mixing the MoS2 nano material and ruthenium-containing precursorat a specific ratio, and getting a MoS2 / RuO2 nano composite material for super capacitors after hydrothermal reaction; and finally, hot-pressing the composite nano material on an electrode made of tantalum foil. The nano composite material of the super capacitor electrode sheet is prepared by making use of the large specific surface area and excellent electrical conductivity of the nano MoS2 two-dimensional (2D) layered structure. The amount of ruthenium oxide used can be reduced. The disadvantages of high cost and poor cycle performance of electrode are overcome. The contact area between theelectrode material and electrolyte is increased, and therefore, the specific capacitance and power density of the super capacitor electrode are improved. Moreover, the method is simple to operate, does not require any complicated preparation device, and is suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of supercapacitors, in particular to a method for preparing multilayer nanocomposite materials and supercapacitor electrode sheets. Background technique [0002] A supercapacitor is a new type of energy device between a secondary battery and a traditional physical capacitor, and has the characteristics of both a battery and a traditional capacitor. The energy density stored in supercapacitors is more than 10 times that of traditional capacitors; compared with batteries, it has the advantages of higher power density, high charge and discharge efficiency, and long cycle life. Therefore, as an energy storage device, it is widely used in national defense equipment, green energy, rail transit, electric vehicles and other fields. At present, the electrode materials for supercapacitors mainly include carbon materials, metal oxide materials and conductive polymer materials. [0003] Among metal oxide materials, es...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/86H01G11/26H01G11/30H01G11/46H01G11/68
CPCY02E60/13
Inventor 卢云王伟冯梦杰王若男
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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