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Preparation method of supercapacitor composite electrode and supercapacitor

A technology of supercapacitors and composite electrodes, which is applied in the manufacture of hybrid capacitor electrodes and hybrid/electric double-layer capacitors, etc., can solve the problems of limited capacity, poor conductivity, and poor cycle performance, and achieve improved capacitive utilization and good cycle performance. , the effect of high specific capacitance

Active Publication Date: 2019-05-10
安徽益佳通电池有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the poor conductivity of copper oxide and copper hydroxide greatly limits its capacity, and its cycle performance is poor.
Existing supercapacitors have complex manufacturing process, many process interference factors, cannot have high energy density and long cycle at the same time, and high cost of raw materials.

Method used

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  • Preparation method of supercapacitor composite electrode and supercapacitor
  • Preparation method of supercapacitor composite electrode and supercapacitor
  • Preparation method of supercapacitor composite electrode and supercapacitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A preparation method for a supercapacitor composite electrode, comprising the steps of:

[0030] Step 1. The carbon paper is ultrasonically cleaned with absolute ethanol, rinsed with deionized water, soaked in deionized water, and set aside.

[0031] Step 2. Weigh CuSO 4 , NaOH and (NH 4 ) 2 S 2 o 8 , were dissolved in deionized water, respectively, to prepare 1MCuSO 4 solution, 0.5M NaOH solution and 0.5M (NH 4 ) 2 S 2 o 8 solution and cooled to 0°C.

[0032] Step 3. Put the carbon paper into 1M CuSO 4 solution, soaked for 1h, then added dropwise 0.5M NaOH solution and 0.5M (NH 4 ) 2 S 2 o 8 Solution, after the dropwise addition, continue to stand at 0°C for 12h, wherein, CuSO 4 , NaOH and (NH 4 ) 2 S 2 o 8 The molar ratio of the substances is 1:0.5:0.5.

[0033] Step 4, take out the carbon paper after the reaction in step 3, and prepare supercapacitor composite electrode after deionization cleaning and drying.

Embodiment 2

[0035] A preparation method for a supercapacitor composite electrode, comprising the steps of:

[0036] Step 1. The carbon paper is ultrasonically cleaned with absolute ethanol, rinsed with deionized water, soaked in deionized water, and set aside.

[0037] Step 2. Weigh CuSO 4 , NaOH and (NH 4 ) 2 S 2 o 8 , were dissolved in deionized water, respectively, to prepare 1MCuSO 4 solution, 1M NaOH solution and 2M (NH 4 ) 2 S 2 o 8 solution and cooled to 0°C.

[0038] Step 3. Put the carbon paper into 1M CuSO 4 solution, soaked for 1h, then added dropwise 1M NaOH solution and 2M (NH 4 ) 2 S 2 o 8 After the solution was added dropwise, continue to stand at 0°C for 12h. Among them, CuSO 4 , NaOH and (NH 4 ) 2 S 2 o 8 The molar ratio of the substances is 1:1:2.

[0039] Step 4, take out the carbon paper after the reaction in step 3, and prepare supercapacitor composite electrode after deionization cleaning and drying.

Embodiment 3

[0041] A preparation method for a supercapacitor composite electrode, comprising the steps of:

[0042] Step 1. The carbon paper is ultrasonically cleaned with absolute ethanol, rinsed with deionized water, soaked in deionized water, and set aside.

[0043] Step 2. Weigh CuSO 4 , NaOH and (NH 4 ) 2 S 2 o 8 , were dissolved in deionized water, respectively, to prepare 1MCuSO 4 solution, 1M NaOH solution and 2M (NH 4 ) 2 S 2 o 8 solution and cooled to 0°C.

[0044] Step 3. Put the carbon paper into 1M CuSO 4 solution, soaked for 1h, then added dropwise 1M NaOH solution and 2M (NH 4 ) 2 S 2 o 8 Solution, after the dropwise addition, continue to stand at -5°C for 24h. Among them, CuSO4 , NaOH and (NH 4 ) 2 S 2 o 8 The molar ratio of the substances is 1:1:2.

[0045] Step 4, take out the carbon paper after the reaction in step 3, and prepare supercapacitor composite electrode after deionization cleaning and drying.

[0046] The SEM picture of the copper oxide / c...

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Abstract

The invention discloses a preparation method of a supercapacitor composite electrode, and the supercapacitor. The preparation method comprises the following steps: loading copper oxide and copper hydroxide on cleaned carbon paper in a clod bath; and then cleaning and drying to obtain the supercapacitor composite electrode. By adopting the common reactant, the copper oxide / copper hydroxide is directly inlaid in flake carbon paper with large specific surface area through the simple cold bath method, the process is simple, and the cost is low.

Description

technical field [0001] The invention belongs to the technical field of preparation methods of supercapacitor composite electrode materials, and in particular relates to a preparation method of supercapacitor composite electrodes and supercapacitors. Background technique [0002] Compared with nickel-metal hydride batteries, nickel-chromium batteries, lead-acid batteries, and lithium-ion batteries, supercapacitors have unique and outstanding advantages, such as high power density, long cycle life, wide operating range, high charge and discharge efficiency, and high current Charging and discharging, good safety and no need for manual maintenance and maintenance; based on these characteristics, supercapacitors can be used in many aspects, for example, they can be used as power sources for electric vehicles, backup power sources in industrial fields (such as cranes, elevators, etc.) and as According to the charge storage mechanism of supercapacitors, supercapacitors can be divid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/86H01G11/24H01G11/30H01G11/46H01G11/40
CPCY02E60/13
Inventor 崔李三王龙超周德清张翔耿斌马振向明祥朱正中李庆余
Owner 安徽益佳通电池有限公司
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