Fabrication method of supercapacitor electrode

A technology for supercapacitors, electrodes, applied in hybrid capacitor electrodes, hybrid/electric double layer capacitor fabrication, nanotechnology for materials and surface science, etc.

Inactive Publication Date: 2017-02-01
ANHUI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the synthesis of manganese oxides and nano-carbon / manganese oxide nanomaterials by flame method has not been reported yet.

Method used

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  • Fabrication method of supercapacitor electrode
  • Fabrication method of supercapacitor electrode
  • Fabrication method of supercapacitor electrode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1) Cleaning. Based on high-purity titanium (Ti) sheet. For the Ti sheet, first use sandpaper to polish the surface to remove obvious impurities and polish it smoothly, then use a cotton swab to dip in the deionized water solution containing detergent, scrub the base, then rinse it with deionized water solution containing detergent, and then use it in sequence. Deionized water, ethanol, deionized water, acetone ultrasonic cleaning for 10 minutes.

[0029] 2) Prepare the solution. Nickel sulfate hexahydrate (NiSO 4 ·6H 2 O), K12 and MnSO 4 ·H 2 O powdery solid. Prepare 0.5M NiSO 4 ·6H 2 A mixed solution of O and 5mM K12, and 0.5M NiSO 4 ·6H 2 O, 5mM K12 and 0.5M MnSO 4 ·H 2 A mixed solution of O.

[0030] 2) Preparation of electrodes. Take two groups of 1cm×2cm titanium sheet samples with a thickness of 0.2mm, and then spin-coat the previously prepared 0.5M NiSO 4 ·6H 2 A mixed solution of O and 5mM K12, and 0.5M NiSO 4 ·6H 2 O, 5mM K12 and 0.5M MnSO 4 ...

Embodiment 2

[0035] 1) Cleaning. Based on high-purity Ti flakes. For the Ti sheet, first use sandpaper to polish the surface to remove obvious impurities and polish it smoothly, then use a cotton swab to dip in the deionized water solution containing detergent, scrub the base, then rinse it with deionized water solution containing detergent, and then use it in sequence. Deionized water, ethanol, deionized water, acetone ultrasonic cleaning for 10 minutes.

[0036] 2) Prepare the solution. NiSO 4 ·6H 2 O, K12 and MnCO 3 powdery solid. Prepare 0.5M NiSO 4 ·6H 2 A mixed solution of O and 8mM K12. and 0.5M NiSO 4 ·6H 2 O, 8mM K12 and 2.28g MnCO 3 of the suspension.

[0037] 3) Preparation of electrodes. Take two groups of 1cm×2cm titanium sheet samples with a thickness of 0.2mm, and then spin-coat the previously prepared 0.5M NiSO 4 ·6H 2 A mixed solution of O and 8mM K12, and 0.5M NiSO 4 ·6H 2 O, 8 mM K12 and 2.28 g of MnCO 3 of the suspension. The speed and time are both 2...

Embodiment 3

[0041] 1) Cleaning. Based on high-purity Ti flakes. For the Ti sheet, first use sandpaper to polish the surface to remove obvious impurities and polish it smoothly, then use a cotton swab to dip in the deionized water solution containing detergent, scrub the base, then rinse it with deionized water solution containing detergent, and then use it in sequence. Deionized water, ethanol, deionized water, acetone ultrasonic cleaning for 10 minutes.

[0042] 2) Prepare the solution. NiSO 4 ·6H 2 O, K12 and MnCO 3 powdery solid. Prepare 5mM K12 and 0.5MNiSO 4 ·6H 2 A mixed solution of O. and 5mM K12, 0.5M NiSO 4 ·6H 2 O and 0.57g MnCO 3 of the suspension.

[0043] 3) Preparation of electrodes. Take two groups of five 1cm×2cm titanium sheet samples with a thickness of 0.2mm, and then spin-coat the previously prepared 5mM K12 and 0.5M NiSO on the coater. 4 ·6H 2 Mixed solution of O, and 5mM K12, 0.5MNiSO 4 ·6H 2 O and 0.57g MnCO 3 of the suspension. The speed and time...

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Abstract

The invention discloses a fabrication method of a supercapacitor electrode, and belongs to the field of an electronic material and a device. The fabrication process comprises the steps of preparing a substrate; adding a manganese salt, sodium dodecyl sulfate or a sodium dodecyl benzene sulfonate solution in a transition metal salt solution, coating the mixture on the substrate, and naturally drying the substrate; placing the substrate in an inner flame of an alcohol lamp flame, and heating the substrate for 2 minutes; and performing annealing for 60-300 minutes at 400 DEG C. In the fabrication process, a three-dimensional micro-nano porous nanocarbon-manganese oxide composite material will be formed from a precursor solution coated on the substrate during flame synthesis and has excellent conductivity and electrochemical activity; when the composite material is applied to an active material of the supercapacitor electrode, the mass-to-capacitance range can reach 10.99-322.60F/g; and moreover, the method for fabricating the supercapacitor electrode is simple and is low in cost, and thus, the method has a wide market application prospect.

Description

technical field [0001] The invention relates to a preparation method of a supercapacitor electrode, belonging to the field of electronic materials and devices. Background technique [0002] A supercapacitor is an energy storage device that uses electrode-electrolyte charge separation to generate an electric double layer, Faraday redox reaction to generate pseudocapacitance, or the coexistence of the two principles. Compared with ordinary batteries or capacitors, supercapacitors have the advantages of higher power density and energy density, short charging time, long cycle life, and high charge and discharge efficiency. The general preparation method of a supercapacitor is a pressing method, in which electrode materials are pressed onto a substrate, and the preparation process is relatively complicated and the cost is high. [0003] In the present invention, a combustion method is adopted to simultaneously produce nano-carbon and nano-manganese oxide materials, and form a th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/36H01G11/46H01G11/86H01G11/30B82Y30/00B82Y40/00
CPCY02E60/13H01G11/36B82Y30/00B82Y40/00H01G11/30H01G11/46H01G11/86
Inventor 梁栋王年曾玮黄优萍安俊杰吴东阳李星晨陈恩浩
Owner ANHUI UNIVERSITY
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