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Process method for producing high-quality organic system supercapacitor active carbon

A supercapacitor and organic system technology, applied in chemical instruments and methods, hybrid capacitor electrodes, inorganic chemistry, etc., can solve the problems of small number of micropores, insufficient specific surface area of ​​activated carbon, hindering the performance of supercapacitors, etc.

Inactive Publication Date: 2019-10-22
北海艾米碳材料技术研发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The core material of supercapacitors is carbon materials. However, the activated carbons currently prepared have defects such as insufficient specific surface area, unreasonable pore size, small number of micropores, and low specific capacitance, which hinder the improvement of supercapacitor performance.

Method used

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  • Process method for producing high-quality organic system supercapacitor active carbon
  • Process method for producing high-quality organic system supercapacitor active carbon
  • Process method for producing high-quality organic system supercapacitor active carbon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A process for producing high-quality organic supercapacitor activated carbon, comprising the following steps:

[0024] 1) Wash the coconut shell carbonized material for 3 times, dry it to obtain the dried material, grind the dried material to 80 μm, add it to the metal oxide suspension, and stir it in a high-pressure stirring tank for 20 minutes to obtain the mixture. The mixture is pre-activated in an activation furnace with an inert gas, heated to an activation temperature of 600°C at a heating rate of 10°C / min, and kept for 50 minutes to obtain a pre-activated material;

[0025] 2) The temperature of the pre-activated material was raised to 950°C, and then a mixed gas of water vapor and oxygen was introduced to carry out the activation reaction for 120 minutes to obtain the activated material;

[0026] 3) Reduce the temperature of the activation furnace in step 2) to 800°C, pass in carbon dioxide gas to react for 360 minutes, naturally cool to room temperature under ...

Embodiment 2

[0029] A process for producing high-quality organic supercapacitor activated carbon, comprising the following steps:

[0030] 1) Wash the coconut shell carbonized material 3 times with clarified lime water, dry it to obtain the dried material, grind the dried material to 50 μm, add it to the suspension of nano-zinc oxide and aluminum oxide, and stir in a high-pressure stirring tank After 20 minutes, the mixed material was obtained, and the mixed material was placed in an activation furnace with an inert gas for pre-activation, and the temperature was raised to an activation temperature of 600 °C at a heating rate of 10 °C / min, and kept for 50 min to obtain a pre-activated material;

[0031] 2) The temperature of the pre-activated material was raised to 850°C, and then a mixed gas of water vapor and oxygen was introduced to carry out the activation reaction for 120 minutes to obtain the activated material;

[0032] 3) Reduce the temperature of the activation furnace in step 2) ...

Embodiment 3

[0035] A process for producing high-quality organic supercapacitor activated carbon, comprising the following steps:

[0036] 1) Dissolving dolomitic lime in water to prepare dolomitic lime water, using the dolomitic lime water to wash the coconut shell carbonized material 3 times, drying to obtain a dried material, crushing the dried material to 60 μm and adding it to the nano-oxidized In the aluminum suspension, stir in a high-pressure stirred tank for 20 minutes to obtain a mixture, place the mixture in an activation furnace with an inert gas for pre-activation, and heat up to an activation temperature of 600°C at a heating rate of 20°C / min. Keep for 50min to obtain the pre-activated material; wherein, the preparation method of the nano-alumina suspension is: configure a sodium polyacrylate solution with a mass fraction of 0.05%, place the nano-alumina powder in the sodium polyacrylate solution, and stir evenly , obtaining the nano-alumina suspension;

[0037] 2) The tempe...

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Abstract

The invention provides a process method for producing high-quality organic system supercapacitor active carbon. The process method comprises: 1) washing a coconut shell carbonization material 3 times,drying to obtain a drying material, crushing the drying material to achieve a particle size of 50-80 [mu]m, adding the crushed material to a metal oxide suspension, stirring for 20 min in a high-pressure stirring kettle to obtain a mixture, placing the mixture in an activation furnace introduced with an inert gas, pre-activating, heating at a heating rate of 10-15 DEG C / min to an activation temperature of 600 DEG C, and maintaining for 50 min to obtain a pre-activated material; 2) heating the pre-activated material to a temperature of 850-950 DEG C, introducing a mixed gas of water vapor andoxygen, and carrying out an activation reaction for 120 min to obtain an activated material; and 3) reducing the temperature of the activation furnace to 600-800 DEG C, introducing carbon dioxide gas,carrying out a reaction, naturally cooling to a room temperature under an inert atmosphere, soaking in an acid solution, washing with pure water to achieve a neutral state, and drying to obtain the supercapacitor active carbon. According to the present invention, the prepared active carbon has characteristics of high specific surface area, reasonable pore size distribution and the like.

Description

technical field [0001] The invention relates to the field of super capacitor activated carbon. More specifically, the present invention relates to a process for producing high-quality organic supercapacitor activated carbon. Background technique [0002] Supercapacitors have broad application prospects in many fields, such as power storage in aerospace, information technology, mobile communications, solar cells and other fields. The core material of supercapacitors is carbon materials. However, the activated carbons currently prepared have defects such as insufficient specific surface area, unreasonable pore size, small number of micropores, and low specific capacitance, which hinder the improvement of supercapacitor performance. Contents of the invention [0003] An object of the present invention is to solve at least the above problems and / or disadvantages and to provide at least the advantages as will be described hereinafter. [0004] Another object of the present in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/324C01B32/336H01G11/24H01G11/34H01G11/44
CPCC01B32/324C01B32/336H01G11/24H01G11/34H01G11/44Y02E60/13
Inventor 张永林王继生张曦
Owner 北海艾米碳材料技术研发有限公司
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