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Electrode for super capacitors and preparation method thereof

A supercapacitor and electrode technology, applied in the field of new energy and new materials, can solve the problems of high equipment requirements, high production cost, no specific capacity contribution, etc., to achieve the effect of high energy density, strong electrical conductivity, and reduced internal resistance

Active Publication Date: 2019-03-29
怀远县翰邦科技咨询有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, supercritical drying requires extreme environments such as high temperature and high pressure, which requires high equipment and high production costs, and the volume of carbon fiber cloth and graphite paper collectors does not contribute to the specific capacity.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A preparation method for an electrode for a supercapacitor, comprising the steps of:

[0034] Ⅰ Preparation of porous Mo-Rh-Cu-Eu-O: Add 10g of molybdenum chloride, 20g of rhodium chloride, 30g of copper nitrate, and 10g of europium chloride into a beaker containing 300g of ethylene glycol, stir for 1 hour, then slowly Add 10 g of citric acid and 20 g of cetyltrimethylammonium bromide, mix well to obtain a mixed solution, and then place the obtained mixed solution in a hydrothermal reaction kettle with a polytetrafluoroethylene liner at 190 ° C React under temperature conditions for 20 hours. After the reaction, cool the reactor to room temperature, centrifuge the reaction product to separate the precipitate, wash repeatedly with water and ethanol, filter with suction, dry at 110°C for 18 hours, and finally place it in a muffle furnace. After heating up to 550°C at a heating rate of 5°C / min, it was fired for 5 hours to obtain porous Mo-Rh-Cu-Eu-O;

[0035] II Ferrocene...

Embodiment 2

[0042] A preparation method for an electrode for a supercapacitor, comprising the steps of:

[0043] Ⅰ Preparation of porous Mo-Rh-Cu-Eu-O: Add 10g of molybdenum chloride, 20g of rhodium chloride, 30g of copper nitrate, and 10g of europium chloride into a beaker containing 320g of ethanol, stir for 1.2h, and then slowly add Sodium citrate 12g and sodium dodecylbenzene sulfonate 23g, mix homogeneously, obtain mixed solution, then the mixed solution obtained is placed in the hydrothermal reaction kettle with polytetrafluoroethylene liner, under 195 ℃ temperature condition After the reaction was completed, the reactor was cooled to room temperature, and the reaction product was centrifuged to separate the precipitate, washed repeatedly with water and ethanol, filtered with suction, dried at 110°C for 19 hours, and finally placed in a muffle furnace for 5 °C / min heating rate to 550 °C, then calcined for 5.5 hours to obtain porous Mo-Rh-Cu-Eu-O;

[0044] II Ferroceneacetylene surf...

Embodiment 3

[0051] A preparation method for an electrode for a supercapacitor, comprising the steps of:

[0052] Ⅰ Preparation of porous Mo-Rh-Cu-Eu-O: Add 10g of molybdenum chloride, 20g of rhodium chloride, 30g of copper nitrate, and 10g of europium chloride into a beaker containing 350g of isopropanol, stir for 1.5h, and then Slowly add 15g of tartaric acid and 25g of ethylenediaminetetraacetic acid, mix well to obtain a mixed solution, then place the obtained mixed solution in a hydrothermal reaction kettle with a polytetrafluoroethylene liner, and react at a temperature of 200°C for 23h After the reaction, the reactor was cooled to room temperature, the reaction product was centrifuged to separate the precipitate, washed repeatedly with water and ethanol, filtered with suction, dried at 110°C for 21h, and finally placed in a muffle furnace at 5°C / min After the heating rate was raised to 550°C, it was fired for 6 hours to obtain porous Mo-Rh-Cu-Eu-O;

[0053] II Ferroceneacetylene su...

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PUM

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Abstract

The invention discloses a preparation method of an electrode for super capacitors, including the following steps: (1) preparation of porous Mo-Rh-Cu-O; (2) preparation of ferrocene acetylene surface modified porous Mo-Rh-Cu-O; (3) preparation of cyano modified fullerene; (4) preparation of ferrocene modified cyanofullerene; and (5) preparation of an electrode. The invention further discloses an electrode for super capacitors prepared by using the preparation method of an electrode for super capacitors. The preparation method of the electrode for super capacitors disclosed by the invention hasthe advantages of simple technology, short process, simple operation and low equipment dependence, and is suitable for large-scale industrial production. The prepared electrode for super capacitors has the advantages of high energy density, high conductivity, high specific capacitance, high efficiency, good electrochemical stability, long cycle life, and safe and environment-friendly use.

Description

technical field [0001] The invention belongs to the technical field of new energy and new materials, and relates to a supercapacitor element, in particular to an electrode for a supercapacitor and a preparation method thereof. Background technique [0002] Supercapacitor is a low-carbon economical energy storage product between batteries and traditional capacitors, also called electrochemical capacitors. Long, good temperature characteristics, etc., can be used as a high-power pulse power supply, in the fields of data memory storage systems, portable instruments and meters, backup power supplies, communication equipment, computers, electric welding machines, magnetizers, flashlights, electric vehicle hybrid power supplies, etc. Broad application prospects, and contains huge economic benefits. [0003] In supercapacitors, the electrode material is the key, which determines the main performance indicators of supercapacitors, and its performance directly affects the cycle life...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/86H01G11/26H01G11/30H01G11/36H01G11/46
CPCH01G11/26H01G11/30H01G11/36H01G11/46H01G11/86Y02E60/13
Inventor 韩德军
Owner 怀远县翰邦科技咨询有限公司
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