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Super capacitor positive electrode material based on conductive polymer, and preparation method thereof

A technology of supercapacitors and conductive polymers, applied in the field of electrochemical materials, can solve the problems of reduced specific capacitance and poor cycle performance, and achieve the effects of increasing specific capacitance, avoiding damage, and large specific surface area

Inactive Publication Date: 2021-02-02
余婷
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the supercapacitor is repeatedly charged and discharged, the specific capacitance is significantly reduced, and the cycle performance is not good

Method used

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  • Super capacitor positive electrode material based on conductive polymer, and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A kind of preparation method of supercapacitor cathode material based on conductive polymer, concrete steps are as follows:

[0043] (1) Dissolve 137.9g ​​(2mol) of lithium nitrate and 211.6g (1mol) of strontium nitrate in 1103.2g of water, then add 469.5g (8mol) of nickel foam, ultrasonically oscillate, and hydrothermally react to obtain the precursor;

[0044] (2) Then the precursor is heat-treated in an air atmosphere to obtain a metal oxide composite material;

[0045] (3) Finally, the metal oxide composite material and α-naphthylamine monomer and 3-(4-fluorophenyl) thiophene monomer are used as raw materials for polymerization reaction to obtain a supercapacitor positive electrode material based on conductive polymer ( SEM image see figure 1 );

[0046]Among them, the metal oxide composite material is modified before participating in the polymerization reaction. The specific method is: crush 1g of the metal oxide composite material to a particle size below 10μm, ...

Embodiment 2

[0064] A kind of preparation method of supercapacitor cathode material based on conductive polymer, concrete steps are as follows:

[0065] (1) Dissolve 137.9g ​​(2mol) of lithium nitrate and 211.6g (1mol) of strontium nitrate in 1379g of water, then add 469.5g (8mol) of nickel foam, ultrasonically oscillate, and hydrothermally react to obtain the precursor;

[0066] (2) Then the precursor is heat-treated in an air atmosphere to obtain a metal oxide composite material;

[0067] (3) Finally, the metal oxide composite material and α-naphthylamine monomer and 3-(4-fluorophenyl)thiophene monomer are used as raw materials for polymerization reaction to obtain a supercapacitor positive electrode material based on conductive polymer;

[0068] Among them, the metal oxide composite material is modified before participating in the polymerization reaction. The specific method is: crush 1g of the metal oxide composite material to a particle size below 10μm, pour it into 5g of water contai...

Embodiment 3

[0086] A kind of preparation method of supercapacitor cathode material based on conductive polymer, concrete steps are as follows:

[0087] (1) Dissolve 137.9g ​​(2mol) of lithium nitrate and 211.6g (1mol) of strontium nitrate in 1200g of water, then add 469.5g (8mol) of nickel foam, ultrasonically oscillate, and react hydrothermally to obtain the precursor;

[0088] (2) Then the precursor is heat-treated in an air atmosphere to obtain a metal oxide composite material;

[0089] (3) Finally, the metal oxide composite material and α-naphthylamine monomer and 3-(4-fluorophenyl)thiophene monomer are used as raw materials for polymerization reaction to obtain a supercapacitor positive electrode material based on conductive polymer;

[0090] Among them, the metal oxide composite material is modified before participating in the polymerization reaction. The specific method is: crush 1 g of the metal oxide composite material to a particle size below 10 μm, pour it into 6 g of water con...

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Abstract

The invention provides a super capacitor positive electrode material based on a conductive polymer, and a preparation method of the super capacitor positive electrode material. According to the method, lithium nitrate, strontium nitrate and foamed nickel are used as raw materials to prepare a metal oxide composite material, and then the metal oxide composite material, an alpha-naphthylamine monomer and a 3-(4-fluorophenyl) thiophene monomer are subjected to a mixed polymerization reaction to obtain the super capacitor positive electrode material based on the conductive polymer, wherein the metal oxide composite material is subjected to modification treatment by using diisobutyl oxalate before participating in polymerization reaction. The positive electrode material has relatively high specific capacitance and good cycle performance.

Description

technical field [0001] The invention relates to the technical field of electrochemical materials, in particular to a conductive polymer-based supercapacitor anode material and a preparation method thereof. Background technique [0002] The specific capacity of supercapacitors is 20 to 200 times that of ordinary capacitors, the specific power is usually greater than 1000W / kg, and the cycle life is greater than 10 5 It is a new type of energy storage device with high specific energy of batteries and high specific power of traditional capacitors, which can be charged and discharged quickly. From the perspective of the overall structure, a supercapacitor is mainly composed of positive and negative electrodes, electrolyte, diaphragm, leads and packaging materials. At present, electrode materials for supercapacitors mainly include carbon materials, metal oxide electrode materials, conductive polymer electrode materials, and composite electrode materials. [0003] Carbon microsph...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/86H01G11/24H01G11/46H01G11/48
CPCH01G11/24H01G11/46H01G11/48H01G11/86Y02E60/13
Inventor 余婷
Owner 余婷
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