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Method for preparing supercapacitor carbon electrode material by using combined method

A technology of supercapacitors and carbon materials, which is applied in the manufacture of hybrid capacitor electrodes and hybrid/electric double-layer capacitors, etc., can solve the problems of energy waste, disadvantage, and low primary energy conversion and utilization efficiency, so as to overcome the collapse of mesopores and reduce costs. , the effect of easy operation

Inactive Publication Date: 2018-10-09
LIAONING UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, with the two major problems of ecological destruction and energy depletion becoming more and more prominent today, under the existing technical conditions, the efficiency of primary energy conversion and utilization is still not high
And thus produced a considerable waste of energy, which is undoubtedly unfavorable for the solution of the problem

Method used

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  • Method for preparing supercapacitor carbon electrode material by using combined method
  • Method for preparing supercapacitor carbon electrode material by using combined method
  • Method for preparing supercapacitor carbon electrode material by using combined method

Examples

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Embodiment 1

[0024] 1. Preparation method

[0025] 1) Take discarded grapefruit peels and dry them in an oven at 90°C to constant weight. Take 25g of the dried peel, put it in a 500ml beaker, add 150ml of deionized water and a magnetic stirrer, cover with plastic wrap, and stir at a medium speed for 24h.

[0026] 2) Take out the insoluble matter, squeeze out the moisture absorbed by the peel with tweezers and put it in the original beaker. Make up to 150ml with deionized water. Add 0.5 g of anhydrous zinc gluconate granules, cover with plastic wrap, and stir at a medium speed for 24 hours. The mixture was transferred into a Petri dish and dried in an oven at 100°C.

[0027] 3) After drying, scrape up the solid matter, weigh it, put the solid into the combustion boat and lay it flat, push it into the center of the tube furnace, and turn on the nitrogen gas to flow into the tube furnace for 30 minutes. Cover the furnace plug and the nozzle cover. Turn on the tube furnace, heat up to 500...

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Abstract

The invention discloses a method for preparing a supercapacitor carbon electrode material by using a combined method, and belongs to the field of capacitor material preparation. According to the method, waste biomass is used as a carbonaceous precursor, an organic zinc salt conversion product is used as a template, and the two components are combined. Inert gas shielding is adopted, mixing with asolid activator is performed after carbonization at 500 DEG C, and secondary high temperature activation is performed at 800 DEG C. An electrode is prepared from the obtained carbon material, and an electrochemical test is performed. An activation method is combined with a template method in the method disclosed by the invention. The formation of a mesopore is controlled by using the template method, the occurrence of mesopore collapse caused by the activation method is reduced, and meanwhile more micropores are produced under the etching of the activator. Good capacitance characteristics areguaranteed.

Description

technical field [0001] The method relates to a method for preparing supercapacitor carbon electrode materials by a combination method, and belongs to the field of capacitor material preparation. Background technique [0002] The use of energy has always been throughout the production activities of human life. Seeking economical, efficient and clean energy has always been a crucial issue. However, with the two major problems of ecological destruction and energy depletion becoming more and more prominent today, under the current technical conditions, the efficiency of primary energy conversion and utilization is still not high. And thus produced a considerable waste of energy, undoubtedly unfavorable for the solution of the problem. Therefore, improving conversion efficiency and seeking efficient energy storage equipment has become a new direction with exploration value. Supercapacitors, also known as electrochemical capacitors. It is a new type of electric energy storage ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/44H01G11/24H01G11/86
CPCH01G11/24H01G11/44H01G11/86Y02E60/13
Inventor 包红旭杨雨萌刘海军张欣苏弘治张馨月张浩杨华黄颖芝吕志忠李良玉刘唯玉陈阳隋然
Owner LIAONING UNIVERSITY
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