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Integrated supercapacitor and manufacturing method thereof

A supercapacitor and gel electrolyte technology, applied in the field of energy storage, can solve the problems of poor performance of electrode materials, difficult to degrade and recycle electrode sheets, complex assembly process, etc., and achieve the effects of improved performance, environmental friendliness, and simple preparation process

Inactive Publication Date: 2016-09-28
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the technical problems of existing capacitors that are easy to leak, complex assembly process, difficult to degrade and recycle electrode sheets, and poor performance of electrode materials, and provide an integrated capacitor that is not easy to leak, simple in process, recyclable electrode sheets, and excellent in electrode material performance. Chemical supercapacitor and preparation method thereof

Method used

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  • Integrated supercapacitor and manufacturing method thereof
  • Integrated supercapacitor and manufacturing method thereof
  • Integrated supercapacitor and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Take by weighing 27g of bacterial cellulose blocks stored in glacial acetic acid, first wash to neutral with deionized water, then mix the cleaned bacterial cellulose with 540ml of deionized water, at a speed of 9000r / min, Mechanical pulverization for 15 minutes to obtain a uniform slurry suspension;

[0023] (2) Pour the bacterial cellulose slurry prepared in step (1) into a container, add acetone and stir evenly, seal the container and place it in a refrigerator fresh-keeping cabinet, and store it for 1 to 3 days, and control the acetone and deionized water The volume ratio is 1:1;

[0024] (3) Put the bacterial cellulose slurry prepared in step (2) into a cell pulverizer, and ultrasonicate at a power of 50W for 10 minutes; then suction filter to form a film, and wash with acetone and deionized water respectively once during the suction filtration process ;Then the membrane was stirred and dispersed in deionized water again to form a homogeneous slurry, wherein t...

Embodiment 2

[0028] (1) Take by weighing 47g of the bacterial cellulose block stored in glacial acetic acid, wash it to neutrality with deionized water, then mix the cleaned bacterial cellulose with 470ml of deionized water, at a speed of 12000r / min, Mechanical pulverization for 10 minutes to obtain a uniform slurry suspension;

[0029] (2) Pour the bacterial cellulose slurry prepared in step (1) into a container, add acetone and stir evenly, seal the container and place it in a refrigerator fresh-keeping cabinet, and store it for 1 to 3 days, and control the acetone and deionized water The volume ratio is 1:3;

[0030] (3) Put the bacterial cellulose slurry prepared in step (2) into a cell pulverizer, and ultrasonicate for 6 minutes at a power of 100W; then suction filter to form a film, and wash twice with acetone and deionized water respectively during the suction filtration process ;Then the membrane is stirred and dispersed in deionized water again to form a homogeneous slurry, where...

Embodiment 3

[0034](1) Take by weighing 64g of bacterial cellulose block stored in glacial acetic acid, first wash it to neutral with deionized water, then mix the cleaned bacterial cellulose with 320ml of deionized water, at a speed of 18000r / min, Mechanical pulverization for 5 minutes to obtain a uniform slurry suspension;

[0035] (2) Pour the bacterial cellulose slurry prepared in step (1) into a container, add acetone and stir evenly, seal the container and place it in a refrigerator fresh-keeping cabinet, and store it for 1 to 3 days, and control the acetone and deionized water The volume ratio is 1:5;

[0036] (3) Put the bacterial cellulose slurry prepared in step (2) into a cell pulverizer, and ultrasonicate for 3 minutes at a power of 150W; then suction filter to form a membrane, and wash twice with acetone and deionized water respectively during the suction filtration process ;Then the membrane is stirred and dispersed in deionized water again to form a homogeneous slurry, wher...

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Abstract

The invention relates to an integrated supercapacitor and a manufacturing method thereof. The technical problems that an existing capacitor is prone to leakage, the assembly process is complex, an electrode slice is difficult to degrade and recycle, and the performance of an electrode material is poor are solved. The integrated supercapacitor is formed by loading porous carbon active matter on bacterial cellulose gel electrolyte. The porous carbon active matter is adsorbed on the surface of fibers in the bacterial cellulose gel electrolyte to form an integrated stereoscopic net structure. The porous carbon active matter is one of or combination of more of active carbon, active carbon fiber, carbon aerogel, carbon nano-tube and biomass-based porous carbon materials. The mass of the porous carbon active matter accounts for 3-30% of the mass of the bacterial cellulose gel electrolyte. The manufacturing method can be widely used for the field of preparation of supercapacitors.

Description

technical field [0001] The invention relates to the field of energy storage devices, in particular to an integrated supercapacitor and a preparation method thereof. Background technique [0002] Supercapacitor is a new type of energy storage device between rechargeable batteries and traditional capacitors. It has high specific capacity, high power density, wide operating temperature range, long cycle life, and fast charge and discharge. And it has no environmental pollution and other characteristics, and now it has very common applications in fields such as electric vehicles, energy, and chemical electronic devices. [0003] Porous carbon materials have attracted much attention in the field of supercapacitors due to their low price, high specific surface area, controllable pore structure, and good physical and chemical stability. The precursor raw materials of porous carbon come from a wide range of sources. Different carbon precursors are selected, and after a specific hea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/32H01G11/40H01G11/36H01G11/56H01G11/86H01G11/34
CPCH01G11/32H01G11/34H01G11/36H01G11/40H01G11/56H01G11/86Y02E60/13
Inventor 于运花丁晨峰兰金叻杨小平
Owner BEIJING UNIV OF CHEM TECH
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