Preparation and application of bacterial cellulose/active carbon fiber/graphene film material

A technology of bacterial cellulose and activated carbon fiber, applied in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor electrodes, etc., can solve the problems of high cost, complicated preparation process, lack of stability and mechanical properties, and achieve low cost, The effect of simple preparation process and excellent recyclability

Active Publication Date: 2015-12-02
PANJIN KEANLONG TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a preparation method of bacterial cellulose / activated carbon fiber / graphene membrane material and its application

Method used

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  • Preparation and application of bacterial cellulose/active carbon fiber/graphene film material
  • Preparation and application of bacterial cellulose/active carbon fiber/graphene film material
  • Preparation and application of bacterial cellulose/active carbon fiber/graphene film material

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specific Embodiment approach 1

[0026] Specific embodiment one: the preparation method of a kind of bacterial cellulose / activated carbon fiber / graphene membrane material of present embodiment, carry out as follows:

[0027] 1. Cut bacterial cellulose into pieces and soak in deionized water for ultrasonic washing, then freeze with liquid nitrogen and freeze-dry for 15-30 hours to obtain spare bacterial cellulose;

[0028] 2. Place the spare bacterial cellulose in a tube furnace for high-temperature pyrolysis to obtain activated carbon fibers, then add a surfactant to the activated carbon fibers, and then disperse them in deionized water to obtain an activated carbon fiber dispersion;

[0029] 3. Receive the bacterial cellulose and cut it into pieces, soak it in deionized water and ultrasonically wash it, then place it in deionized water, stir to make it evenly dispersed, and then transfer it to a homogenizer for stirring to obtain bacterial cellulose slurry;

[0030] Four, add tensio-active agent in the graph...

specific Embodiment approach 2

[0038] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the bacterial cellulose is bacterial cellulose leftovers. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0039] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the condition of the ultrasonic cleaning in step 1 is ultrasonic time of 10 hours, and the deionized water is replaced every hour. Others are the same as in the first or second embodiment.

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Abstract

The invention relates to a preparation method and application of a bacterial cellulose / active carbon fiber / graphene film material. The objective of the invention is to solve the problems of complex preparation process, high cost, poor stability and mechanical properties of existing flexible electrode materials. The method includes the following steps that: spare bacterial cellulose is prepared, and activate carbon fiber dispersion is prepared; bacterial cellulose slurry is prepared; and composite material dispersion is prepared, and vacuum filtration is performed on the bacterial cellulose slurry, so that a film can be formed, and the composite material dispersion is added, and vacuum filtration and drying are performed, and as a result, the bacterial cellulose / active carbon fiber / graphene film material can be obtained. The film material is applied to super capacitors. The film material prepared by the invention can be mass produced, and has the advantages of simple preparation process, low cost, high stability and excellent mechanical properties. A super capacitor apparatus adopting the film material has an excellent capacitive characteristic. The invention belongs to the nano material technical field.

Description

technical field [0001] The invention relates to a preparation method and application of a membrane material. Background technique [0002] Traditional energy sources are increasingly depleted, stimulating people to look for alternative energy sources and efficient energy storage devices, and supercapacitors have high power density and high energy density, and are used in hybrid electric vehicles, electric vehicles, portable electronic devices and other important fields have always been favored by people. [0003] In today's society, the demand for energy storage of flexible and bendable devices is rapidly increasing, and people urgently need to develop the next generation of cheap, soft and bendable supercapacitors, and electrode materials are the most important components. However, the preparation process of existing flexible electrode materials is complicated, the cost is high, and they do not have good stability and mechanical properties. Therefore, it is particularly i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/86H01G11/30H01G11/36H01G11/40
CPCY02E60/13
Inventor 袁国辉刘荣马丽娜张芳平黎恩源张法宁
Owner PANJIN KEANLONG TECH CO LTD
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