Self-charging system based on flexible electrospinning reticular film and wearable electronic device
A reticulated membrane, flexible electricity technology, applied in the field of nanogenerators and supercapacitors, can solve the problems of limited application range of collected mechanical energy, unfavorable large-scale production, poor repeatability, etc., and achieves strong industrialization promotion, significant economic benefits and social Effective, low cost effect
Active Publication Date: 2017-06-23
苏州慧闻纳米科技有限公司
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Problems solved by technology
In the prior art, there is a method for preparing polypyrrole by electrodeposition, but the electrochemical deposition method must be a metal conductive substrate, and an electrochemical device needs to be configured in the industrial practice process, which is not conducive to large-scale production, high cost, and repetitive poor sex
At the same time, in this work, the self-charging system formed by triboelectric nanogenerators and supercapacitors using polypyrrole as electrodes and friction layers is not bendable, which limits the application range of the system to harvest mechanical energy.
Method used
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[0054] figure 1 with figure 2 A schematic flow diagram and a schematic diagram of the preparation process of the preparation method of the polymer fiber mesh film 120 and the carbon fiber mesh film 130 are respectively shown. Such as figure 1 with figure 2 Shown, the preparation method of flexible electrospun mesh film of the present invention, comprises the steps:
[0055] S100, dispersing a predetermined amount of non-conductive polymer into a solvent to obtain a polymer solution with a mass concentration of 8-15%;
[0056] S200. Add the polymer solution into a container with a spray port, use a syringe pump to control the injection rate to 0.6-1.2mL / h, and apply a voltage of 12-18kV between the spray port and the ground receiving end, so that The polymer solution is ejected from the injection port under the action of voltage electrostatic to be stretched, and solidified with the volatilization of the solvent, so as to form a fibrous mesh film 110 at the ground receivi...
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The invention provides the preparation method of a flexible electrospinning reticular film. The preparation method comprises the steps that a predetermined amount of a nonconductive polymer is dispersed into a solvent to acquire a polymer solution with the mass concentration of 8 to 15%; the polymer solution is added to a vessel with an ejection port; an injection pump controls the injection speed to be 0.6 to 1.2 mL / h; the voltage of 12 to 18 kV is applied between the ejection port and a ground receiving end, so as to form a fibrous reticular film on the ground receiving end; the fibrous reticular film is pre-oxidized in the air atmosphere to acquire a polymer fibrous reticular film; and the polymer fibrous reticular film is subjected to high temperature carbonization treatment in an inert atmosphere to acquire a carbon fibrous reticular film. According to the invention, compositions prepared by the method contain less impurities and are stable and non-polluting, and in the processes of preparing a flexible friction nano-generator and a flexible solid-state supercapacitor and assembling a self-charging system, a template and complex post-processing steps are avoided.
Description
technical field [0001] The invention relates to the field of nanogenerators and supercapacitors, in particular to a method for preparing a flexible electrospun mesh film, a flexible triboelectric nanogenerator based on the flexible electrospun mesh film, a flexible solid supercapacitor, a self-charging systems and wearable electronics. Background technique [0002] Frictional nanogenerators have the advantages of low cost, high efficiency, and no pollution. The output of the triboelectric nanogenerator is a peak, AC output, so it cannot directly drive electronic devices. And most of the electricity consumption is not directly used for power generation, but needs to be stored for reuse. Therefore, the triboelectric nanogenerator can be combined with an electric energy storage device to form a stable and continuous output. At present, more mature electric energy storage systems include lithium-ion batteries and supercapacitors. Compared with lithium-ion batteries, the adva...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H02N1/04D04H1/728D06C7/04H02J7/34H02J7/32
CPCD04H1/728D06C7/04H02J7/32H02J7/345H02N1/04Y02B40/00
Inventor 文震孙旭辉孙娜
Owner 苏州慧闻纳米科技有限公司