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Preparation method and application of microporous carbon fiber grafted polyaniline/CoNi2S4 composite material

A fiber grafting and composite material technology, applied in the field of electrochemical materials and composite materials, can solve the problems of high energy density and power density, and cannot provide specific capacity.

Active Publication Date: 2021-09-07
晋江瑞碧科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the single use of carbon materials, conductive polymers or metal compounds cannot provide electrode materials with high specific capacity, high energy density and power density, and strong chemical stability.

Method used

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  • Preparation method and application of microporous carbon fiber grafted polyaniline/CoNi2S4 composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1) Preparation of microporous carbon fiber

[0031] 2.8 g of cellulose (CA) was dissolved in a mixed solvent of 30 gn, N'-dimethylformamide and 15 g of tetrahydrofuran, and magnetically stirred at 50 ° C for 5 h, forming a solution. 0.9 g of tetraethyl ester is added dropwise to a solution, and stirring is continued for 2 h to obtain a precursor quenching solution. After the precursor quenching solution was quenched at -20 ° C for 100 min, the soaking of the soaking was removed in distilled water, and the distilled water was changed once every 8 h, and the distillation water was changed 3 times. After washing, dry and get Ca / Sio 2 Composite fiber. CA / SIO 2 The composite fiber soaked in a solution of 0.1 mol / lnaOh ethanol solution for 24 h, converting Ca into cellulose, distilled water washing, dried to give cellulose / SiO 2 Composite fiber. Cellulose / SiO 2 The fiber soaking in the mass concentration is 1% NH 4 In the CL solution, the 80 ° C water bath oscillator wa...

Embodiment 2

[0040] 1) Preparation of microporous carbon fiber

[0041] 3.1 g of cellulose (CA) was dissolved in a mixed solvent of 40 gn, N'-dimethylformamide and 10 g of tetrahydrofuran, 50 ° C magnetic force for 5 h, dissolved, forming a solution. 0.7 g of tetraethyl ester was added dropwise to the solution, and stirring was continued for 2 h to give the precursor quenched solution. After 120 minutes of the precursor quenched solution at -10 ° C, the soaking of the soaking in distilled water was removed, and the distilled water was changed once every 8h, and the distillation water was changed 3 times. After washing, dry and get Ca / Sio 2 Composite fiber. CA / SIO 2 The composite fiber soaked in a solution of 0.1 mol / lnaOh ethanol solution for 24 h, converting Ca into cellulose, distilled water washing, dried to give cellulose / SiO 2 Composite fiber. Cellulose / SiO 2 The fiber soaking in the mass concentration is 0.6% NH 4 In the CL solution, the 80 ° C water bath oscillator was oscilla...

Embodiment 3

[0050] 1) Preparation of microporous carbon fiber

[0051] 3.4 g of cellulose (CA) was dissolved in a mixed solvent of 35 g, N'-dimethylformamide and 15 g of tetrahydrofuran, and magnetically stirred at 50 ° C for 5 h, forming a solution. 0.8 g of tetraethylene titrates were added to the solution and stirred for 2 h, resulting in a precursor quenched solution. After the precursor quenching solution was quenched at -20 ° C for 100 min, the soaking of the soaking was removed in distilled water, and the distilled water was changed once every 8 h, and the distillation water was changed 3 times. After washing, dry and get Ca / Sio 2 Composite fiber. CA / SIO 2 The composite fiber soaked in a solution of 0.1 mol / lnaOh ethanol solution for 24 h, converting Ca into cellulose, distilled water washing, dried to give cellulose / SiO 2 Composite fiber. Cellulose / SiO 2 The fiber soaking in the mass concentration is 0.8% NH 4 In the CL solution, the 80 ° C water bath oscillator was oscillat...

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Abstract

The invention provides a microporous carbon fiber grafted polyaniline / CoNi2S4 composite material electrode. A preparation method of the microporous carbon fiber grafted polyaniline / CoNi2S4 composite material electrode comprises the following steps of preparation of microporous carbon fibers, preparation of microporous carbon fiber grafted polyaniline, preparation of a microporous carbon fiber grafted polyaniline / CoNi2S4 composite material, and preparation of the microporous carbon fiber grafted polyaniline / CoNi2S4 composite material electrode. The microporous carbon fiber grafted polyaniline / CoNi2S4 composite material electrode prepared by the method is simple in preparation process, low in cost and capable of being subjected to large-scale industrial production, and the obtained composite material electrode has very high specific capacitance and excellent recycling stability and is an excellent supercapacitor electrode material.

Description

Technical field [0001] The present invention relates to a microporous carbon fiber graft polyaniline / coni 2 S 4 The preparation method and use of the composite material belongs to the field of electrochemical materials and composite materials. Background technique [0002] Super capacitors are also called electrochemical capacitors, which is a new energy storage device between the battery and the conventional duplex layer capacitor. The supercapacitor is divided into two types of energy storage and capacity storage. Compared to traditional capacitors, the supercapacitor is greatly improved, and the energy density is ten times that of traditional capacitors. The supercapacitor has the characteristics of high capacitance, high power density, high charging and discharge efficiency, wide power density and operating temperature range, maintenance and environmentally friendly, so that it has a wide range of automobiles, communications, microelectronic devices, military defense. Appli...

Claims

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Application Information

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IPC IPC(8): D06M15/61D06M11/77D06M13/395H01G11/40H01G11/48H01G11/30H01G11/86D06M101/40
CPCD06M15/61D06M11/77D06M13/395H01G11/40H01G11/48H01G11/30H01G11/86D06M2101/40Y02E60/13
Inventor 刘瑞来叶如娇赵瑨云胡家朋付兴平丁晓红
Owner 晋江瑞碧科技有限公司
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