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Preparation method of super-elastic conductive fibers and super-elastic fibrous supercapacitor

A technology of supercapacitors and conductive fibers, which is applied in the manufacture of hybrid/electric double layer capacitors, electrodes of hybrid capacitors, conductive/antistatic filaments, etc., can solve the problems of restricting applications and increasing the weight of supercapacitors, and achieve easy promotion, Good electrical conductivity, the effect of improving electrical conductivity

Inactive Publication Date: 2018-05-04
DONGHUAJINGYUE SUZHOU TEXTILE TECH RES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, non-conductive elastic matrix materials are used in these stretchable capacitors, which will inevitably increase the weight of the supercapacitor and limit its application in the field of wearable electronic devices.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A method for preparing superelastic conductive fibers and all-solid-state stretchable fibrous supercapacitors, comprising the following steps:

[0021] Step 1: Polystyrene-butadiene-styrene (SBS) was dissolved in tetrahydrofuran (THF), wherein the concentration of polystyrene-butadiene-styrene was 20wt%, and uniformly dispersed copper nanowires and graphene The dispersion liquid is added to the polystyrene-butadiene-styrene solution, wherein the mass fraction of copper nanowires and graphene is 5%, and the mass ratio of the two is 1 / 1, and the spinning is obtained after shearing and homogenizing. liquid.

[0022] Step 2: The polystyrene-butadiene-styrene / copper nanowire / graphene spinning solution enters the 8wt% polyvinyl alcohol coagulation bath through a spinneret hole with a diameter of 500 microns, and is wound and collected to produce Elastic fibers modified with conductive particles were obtained.

[0023] Step 3: Immerse the fiber prepared above in 0.5 mol / L co...

Embodiment 2

[0027] A kind of preparation method of superelastic conductive fiber and superelastic fibrous supercapacitor, comprises the following steps:

[0028] Step 1: Polyurethane (PU) is dissolved in N-N-dimethylformamide (DMF), wherein the polyurethane concentration is 15wt%, and the uniformly dispersed silver nanowire dispersion is added to the polyurethane solution, wherein the silver nanowires have a significant impact on the mass of polyurethane The fraction is 1%, and the spinning solution is obtained after stirring evenly.

[0029] Step 2: The polyurethane / silver nanowire spinning solution passes through a spinneret hole with a diameter of 500 microns, and enters a coagulation bath composed of water and N-N-dimethylformamide, wherein the concentration of N-N-dimethylformamide is 20wt% , the fibers are wound into shape after being washed with water.

[0030] Step 3: The polyurethane / silver nanowire composite fiber is immersed in the silver nanoparticle precursor (silver trifluo...

Embodiment 3

[0034] A kind of preparation method of superelastic conductive fiber and superelastic fibrous supercapacitor, comprises the following steps:

[0035]Step 1: Polystyrene-butadiene-styrene (SBS) is dissolved in tetrahydrofuran (THF), wherein the concentration of polystyrene-butadiene-styrene is 20wt%, and the uniformly dispersed carbon nanotube dispersion is added into the polystyrene-butadiene-styrene solution, wherein the mass fraction of carbon nanotubes is 2%, and the spinning solution is obtained after shearing and homogenizing.

[0036] Step 2: The polystyrene-butadiene-styrene / carbon nanotube spinning solution is passed through a spinneret hole with a diameter of 500 microns, and enters an 8wt% polyvinyl alcohol coagulation bath, and the conductive particles are obtained after winding and collecting Modified elastic fibers.

[0037] Step 3: The polystyrene-butadiene-styrene / carbon nanotube composite fiber is immersed in a silver trifluoroacetate solution with a concentra...

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PUM

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Abstract

The invention relates to a preparation method of super-elastic conductive fibers and a super-elastic fibrous supercapacitor. The preparation method comprises the following steps: the high-elastic conductive fibers with conductive paths inside are prepared from a block copolymer solution and conductive filler dispersion liquid by mixing and wet spinning; then, conductivity of the composite fibers is further improved by depositing metal nanoparticles on the surface and inside, and then the full-solid stretchable flexible fibrous supercapacitor is prepared from a colloidal electrolyte. The preparation method is simple in process, and the prepared fibers have good elasticity, high elongation and high conductivity, thereby being more suitable for electrode materials of the flexible stretchablefibrous supercapacitor.

Description

technical field [0001] The invention relates to a method for preparing a superelastic conductive fiber, and also relates to a flexible and stretchable fibrous supercapacitor prepared from the superelastic conductive fiber obtained by the method. Background technique [0002] Stretchable electronic components have attracted much attention due to their potential applications in wearable fields such as flexible displays, flexible energy storage, and smart skin, so the preparation of flexible and stretchable conductor materials is crucial. Although metal fibers have high electrical conductivity, their rigidity is difficult to meet the requirements of flexibility and stretchability, while polymer fibers have shown great potential in stretchable electronic devices due to their flexibility, easy modification, and spinnability. However, in addition to the electrical insulation of conductive polymers, most polymer fibers must be modified to prepare conductive fibers, and achieving hi...

Claims

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Application Information

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IPC IPC(8): D01F6/56D01F6/94D01F1/09D06M11/83D06M15/61D06M15/333D06M15/63H01G11/36H01G11/40H01G11/86
CPCD01F1/09D01F6/56D01F6/94D06M11/83D06M15/333D06M15/61D06M15/63H01G11/36H01G11/40H01G11/86Y02E60/13
Inventor 郑贤宏郑圆圆文琦付文丽许庆丽毛宁陈文翀覃小红邱夷平陈霞张坤
Owner DONGHUAJINGYUE SUZHOU TEXTILE TECH RES CO LTD