Preparation method of supercapacitor electrode material

A technology for supercapacitors and electrode materials, which is applied in the manufacture of hybrid capacitor electrodes and hybrid/electric double layer capacitors. Effects of Diffusion and Transmission

Active Publication Date: 2021-04-30
CHONGQING UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chemical methods have problems such as complex operation, high cost and environmental pollution

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  • Preparation method of supercapacitor electrode material
  • Preparation method of supercapacitor electrode material
  • Preparation method of supercapacitor electrode material

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preparation example Construction

[0035]The preparation method of the supercapacitor electrode material of the present invention includes the following steps:

[0036]1. Preparation of active materials (Ni-MOF): 1 addition of hexahydraminated nickel chloride (NICL) in a mixed solution containing ethanol, deionized water and N, N-dimethylformamide (DMF).2• 6h2O) and terephthalic acid (PTA), then rapid addition of triethylamine (TEA) and stirred and stirred, forming a colloid suspension;

[0037]Further treatment of colloidal suspension chamber: Ultrasound treatment, centrifugal collection product, vacuum drying after ethanol, to obtain active materials, spare;

[0038]In mixed solution of ethanol, deionized water and N, N-dimethylformamide, the volume ratio of three components can be: 1: (0.8-1.5): (12-20), such as 2ml: 2ml: 30ml Wait.

[0039]2, the production of Ni-MOF electrodes: 1) Pretreatment foam nickel: Cropped foam nickel into rectangles that meet process requirements, such as 1 × 3 cm2After mixing with ethanol and deio...

Embodiment 1

[0053]A) Preparation of active materials (Ni-MOF): 0.75 mmol of hexahydrachlorinated nickel (NICL2• 6h2O) and 0.75 mmol of terephthalic acid (PTA) were dissolved in a mixed solution containing 2 mL ethanol, 2 mL deionized water and 30 ml n, N-dimethylformamide (DMF), and then 0.8 ML triethylamine (TEA) rapidly poured into the above mixed solution and stirred for a period of time, such as 5 min, resulting in a colloidal suspension. The final product was collected by centrifugation at room temperature, and the final product was collected by centrifugation; and the final product ethanol was washed with EtOAc. 12 h.

[0054]B) Production of Ni-MOF electrode: cut foam nickel to 1 × 3 cm2The rectangular infiltration into the HCl of 3 m, ethanol and deionized water multiple times, after drying, after drying at 60 ° C, it is dry after drying.

[0055]The preparation process of the electrode sheet is as follows: the active material, the conductive carbon black and polyvinylidene fluoride (PVDF) ar...

Embodiment 2

[0057]A) Preparation of active materials (Ni-MOF): 0.75 mmol of hexahydrachlorinated nickel (NICL2• 6h2O) and 0.75 mmol of terephthalic acid (PTA) were dissolved in a mixed solution containing 2 mL ethanol, 2 mL deionized water and 30 mL N, N-dimethylformamide (DMF). 0.8 ml of triethylamine (TEA) was quickly poured into the mixed solution and stirred for a period of time, such as 6min, resulting in a colloidal suspension. Ultrasonic treatment 4 h was collided at room temperature, and the final product was collected by centrifugation, and the final product ethanol was washed, and 12 h was dried in vacuo 80 ° C.

[0058]B) Production of Ni-MOF electrode: cut foam nickel to 1 × 3 cm2The rectangular infiltration into the HCl of 3 m, and then the amount is subjected to drying with ethanol and deionized water. The preparation flow of the electrode sheet is as follows: mixed the active material, the conductive carbon black, and the polyvinylidene fluoride (PVDF), and dissolved in N-methylpyrr...

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Abstract

The invention relates to a preparation method of a supercapacitor electrode material, which comprises the following steps: 1, adding nickel chloride hexahydrate and terephthalic acid into a solution containing ethanol, deionized water and N, Ndimethylformamide, and adding triethylamine to form a colloidal suspension; carrying out ultrasonic treatment, centrifugally collecting a product, washing with ethanol, and carrying out vacuum drying to obtain an active material; 2, 1) cutting foamed nickel into rectangles meeting process requirements, cleaning, drying in a drying oven, and weighing; 2) uniformly mixing an active material, conductive carbon black and polyvinylidene fluoride according to the proportion required by the process, and dissolving the mixture in N-methylpyrrolidone to obtain paste; and coating the foamed nickel with a small amount of paste, drying the foamed nickel in a vacuum drying oven to obtain an electrode plate, tabletting and weighing. According to the invention, a layered crystal structure is obtained, layers are connected through terephthalate, and the stability of the material in the electrochemical reaction process provides enough storage space for electrolyte ions.

Description

Technical field[0001]The present invention relates to the field of energy material technology, and more particularly to a method of preparing a nickel-based metal organic skeleton supercapacitor electrode material.Background technique[0002]Super capacitor is a new type of energy storage device, compared to traditional physical capacitors, supercapacitor has high power density, long working life, wide working temperature limit, green non-pollution, stable and safe work, is the most efficient energy storage equipment I hope candidates. Nowadays are now widely used in consumer electronics, industrial electronics, automotive electronics, new energy and other fields.[0003]The supercapacitor is composed of a positive electrode material, an anode material, and a diaphragm between the positive and negative poles and the electrolyte. At present, the carbon-based material includes carbon nanotubes, graphene, and derivatives thereof, etc. are common supercapacitor electrode materials, and stor...

Claims

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Application Information

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IPC IPC(8): H01G11/86H01G11/30
CPCH01G11/86H01G11/30Y02E60/13
Inventor 徐彦芹孙别敏肖俪悦曹渊陈昌国
Owner CHONGQING UNIV
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