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Supercapacitor based on graphene/silicon-aluminum gel material and preparation of supercapacitor

A technology of supercapacitors and gelling materials, applied in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor separators, hybrid capacitor electrodes, etc., can solve problems such as the influence of mechanical properties, and achieve energy storage structure integration and good capacitance performance , The effect of low carbon and no pollution in the preparation process

Inactive Publication Date: 2017-08-01
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, higher porosity will affect the mechanical properties while improving ion transport.

Method used

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  • Supercapacitor based on graphene/silicon-aluminum gel material and preparation of supercapacitor
  • Supercapacitor based on graphene/silicon-aluminum gel material and preparation of supercapacitor
  • Supercapacitor based on graphene/silicon-aluminum gel material and preparation of supercapacitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Weigh 100g of water glass, 6.82g of NaOH solid, and 30g of deionized water for mixing and stirring. After stirring evenly, let stand for 24 hours to obtain an alkali activator solution with a modulus of 2.0. Weigh 100g of metakaolin, introduce the alkali activator solution into the slurry mixer, and slowly add metakaolin while stirring at a constant speed, stir slowly for 120s, and stir quickly for 120s. The slurry was then added to a ring mold with a diameter of 10 mm and a thickness of 1 mm and a cube mold with a side length of 20 mm. After 24 hours, put them into the curing room (20°C±1°C, relative humidity about 90%) for curing.

[0035] After 28 days, the circular silica-alumina gel material sample in the curing room was taken out to obtain the interlayer material, which was immersed in a 2mol / L KOH solution to fully saturate it.

[0036] Electrode preparation: Weigh 80 mg of highly conductive graphene (), 15 mg of carbon black, and 5 mg of polytetrafluoroethylene...

Embodiment 2

[0041] Weigh 100g of water glass, 8.74g of NaOH solid, and 30g of deionized water for mixing and stirring. After stirring evenly, let stand for 24 hours to obtain an alkali activator solution with a modulus of 1.8. Weigh 100g of metakaolin, introduce the alkali activator solution into the slurry mixer, and slowly add metakaolin while stirring at a constant speed, stir slowly for 120s, and stir quickly for 120s. The slurry was then added to a ring mold with a diameter of 10 mm and a thickness of 1 mm and a cube mold with a side length of 20 mm. After 24 hours, put them into the curing room (20°C±1°C, relative humidity about 90%) for curing.

[0042] After 28 days, the circular silica-alumina gel material sample in the curing room was taken out to obtain the interlayer material, which was immersed in a 2mol / L KOH solution to fully saturate it.

[0043] Electrode preparation: Weigh 80 mg of highly conductive graphene, 15 mg of carbon black, and 5 mg of polytetrafluoroethylene PT...

Embodiment 3

[0048] Weigh 100g of water glass, 11.12g of NaOH solid, and 30g of deionized water for mixing and stirring. After stirring evenly, let stand for 24 hours to obtain an alkali activator solution with a modulus of 1.6. Weigh 100g of metakaolin, introduce the alkali activator solution into the slurry mixer, and slowly add metakaolin while stirring at a constant speed, stir slowly for 120s, and stir quickly for 120s. The slurry was then added to a ring mold with a diameter of 10 mm and a thickness of 1 mm and a cube mold with a side length of 20 mm. After 24 hours, put them into the curing room (20°C±1°C, relative humidity about 90%) for curing.

[0049] After 28 days, the circular silica-alumina gel material sample in the curing room was taken out to obtain the interlayer material, which was immersed in a 2mol / L KOH solution to fully saturate it.

[0050] Electrode preparation: Weigh 80 mg of highly conductive graphene, 15 mg of carbon black, and 5 mg of polytetrafluoroethylene P...

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Abstract

The invention relates to a supercapacitor based on a graphene / silicon-aluminum gel material and preparation of the supercapacitor. The supercapacitor is characterized by comprising an isolation layer and graphene electrodes, wherein the graphene electrodes are arranged at two sides of the isolation layer, the isolation layer employs a silicon-aluminum gel material, and an ionic electrolyte solution is attached and stored in the isolation layer. Compared with the prior art, the supercapacitor has the advantages of low carbon and no pollution during the preparation process; a pore structure in the supercapacitor can be used as a storage body of an electrolyte, sodium ions contained in the supercapacitor can also be used for electrolyte ions for transportation; and the novel structure supercapacitor obtained through assembly has relatively good capacitance performance and can work under a load-bearing condition, and integration of an energy storage structure is achieved.

Description

technical field [0001] The invention relates to the technical field of supercapacitors, in particular to a supercapacitor based on graphene / silicon-aluminum gel material and its preparation. Background technique [0002] In recent years, as people's dependence on energy storage devices has increased, single-function energy storage devices have been unable to meet people's growing needs. New directions of research focus on multifunctional energy storage systems that can simultaneously combine energy storage systems with properties such as energy conversion, bendability, and structural strength. There are many ways to implement multifunctional energy storage systems, but the most effective one is to combine structural functions (such as strength, stiffness, fracture toughness, etc.) with power storage functions. In a structural energy storage system, the basic requirements for charging and discharging must be met and at the same time have structural strength and integrity. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/32H01G11/52H01G11/84H01G11/86
CPCY02E60/13H01G11/32H01G11/52H01G11/84H01G11/86
Inventor 张东徐佳明
Owner TONGJI UNIV
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