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Preparation method of PEDOT: PSS porous reticular membrane structure electrode material for flexible supercapacitor

A technology of supercapacitors and electrode materials, which is applied in the manufacture of hybrid capacitor electrodes and hybrid/electric double-layer capacitors, etc., can solve the problems of restricting the charge storage capacity and low specific surface area of ​​electrode materials, and achieve higher specific capacitance and increased specific surface area. Effect

Active Publication Date: 2021-10-15
DALIAN UNIV OF TECH
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  • Application Information

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Problems solved by technology

However, such thin-film electrodes based on conductive polymers are usually simple and flat two-dimensional continuous structures with a very low specific surface area, and the electrode and electrolyte can only form contact on the surface of the film, which greatly restricts the charge storage capacity of the electrode material.

Method used

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  • Preparation method of PEDOT: PSS porous reticular membrane structure electrode material for flexible supercapacitor
  • Preparation method of PEDOT: PSS porous reticular membrane structure electrode material for flexible supercapacitor
  • Preparation method of PEDOT: PSS porous reticular membrane structure electrode material for flexible supercapacitor

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Embodiment 1

[0031] A preparation method for PEDOT:PSS porous network film structure electrode material for flexible supercapacitor, specifically comprising the following steps:

[0032] (a) Add 5% by volume of polar solvent dimethyl sulfoxide to the conductive polymer PEDOT:PSS aqueous solution, and magnetically stir for 3 hours under the condition of 60°C oil bath, so that the mixed solution reaches 1000-10000CPS;

[0033] (b) Inhale the mixed solution prepared in step (a) into the syringe, select a needle with a diameter of 27G to assemble at the end of the syringe, install the syringe on the micro-injection pump, and immerse the outlet of the needle in an organic solvent (isopropanol) to solidify In the bath, set the propulsion speed of the micro-injection pump to 3 μL / h, push the mixed solution from the syringe into the isopropanol coagulation bath, connect the lower part of the coagulation bath to the turntable, adjust the speed of the turntable to 2rad / min, and obtain in the coagulat...

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Abstract

A preparation method of a PEDOT: PSS porous reticular membrane structure electrode material for a flexible supercapacitor comprises the following steps: by taking PEDOT: PSS fibers prepared by a wet spinning method as a raw material, dispersing the prepared PEDOT: PSS fibers in an aqueous solution, and collecting the fibers into a PEDOT: PSS two-dimensional porous reticular membrane structure through ultrasonic dispersion, vacuum filtration and mechanical pressing. The porous reticular membrane structure increases the specific surface area of the electrode material, so that the electrode material is in full contact with electrolyte. Compared with a PEDOT: PSS membrane with a simple and continuous structure, the PEDOT: PSS porous reticular membrane is used as a flexible supercapacitor electrode, and the charge storage capacity of a PEDOT: PSS electrode material is remarkably improved.

Description

technical field [0001] The invention relates to the technical field of material preparation, in particular to a method for preparing a PEDOT:PSS porous network membrane structure electrode material for flexible supercapacitors. Background technique [0002] A supercapacitor is a high-performance energy storage device that can realize fast charging and discharging, has high safety and long service life. With the rapid development of wearable electronic devices, the demand for flexible energy storage devices is increasing. In energy storage devices, the electrode material is a key part that determines its charge storage performance. Conductive polymer is considered to be a new type of flexible supercapacitor electrode material with great development potential because of its good conductivity, strong flexibility and easy processing and molding. The conductive polymer electrode materials currently used in flexible supercapacitors mainly include polyaniline, polythiophene, and ...

Claims

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Application Information

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IPC IPC(8): H01G11/24H01G11/48H01G11/86
CPCH01G11/24H01G11/48H01G11/86Y02E60/13
Inventor 范曾潘路军林雪茹黄晖
Owner DALIAN UNIV OF TECH
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