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Needle-shaped control agent as well as preparation method and application thereof

A control agent and needle-shaped technology, which is applied in the field of supercapacitor electrode material preparation, can solve the problems of increasing resistance and difficult performance of active materials

Inactive Publication Date: 2020-01-24
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, conventional adhesives are insulating. If the adhesive is between the active material and the current collector, it will increase its resistance and even make it difficult for a part of the active material to perform

Method used

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  • Needle-shaped control agent as well as preparation method and application thereof
  • Needle-shaped control agent as well as preparation method and application thereof
  • Needle-shaped control agent as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Embodiment 1 uses the preparation of the cobalt-nickel-based chalcogenide supercapacitor electrode plate of acicular control agent

[0040] The cobalt source and sulfur source used to prepare the active material are respectively: cobalt chloride and thiourea, and the molecular weight of the needle control agent is 400.

[0041] A method for preparing a supercapacitor electrode plate material containing a composition that can control the formation of needle-shaped cobalt-nickel-based chalcogenides, comprising the following steps:

[0042] (1) Cut a nickel foam plate (60% porosity) with a thickness of 0.5mm into a size of 5×5cm; soak it in acetone, 1M hydrochloric acid, 1M potassium hydroxide, absolute ethanol, deionized Ultrasonic cleaning in water for 10 minutes; then placed in a vacuum drying oven to raise the temperature to 80 ° C, and keep warm for 2 hours to obtain a clean nickel foam collector.

[0043] (2) Weighing the cobalt source, the sulfur source material an...

Embodiment 2

[0048] Embodiment 2 uses the preparation of the cobalt-nickel-based chalcogenide supercapacitor electrode plate of acicular control agent

[0049] The cobalt source and sulfur source used to prepare the active material are respectively: cobalt nitrate and thiourea, and the molecular weight of the needle control agent is 800.

[0050] A method for preparing a supercapacitor electrode plate material containing a composition that can control the formation of needle-shaped cobalt-nickel-based chalcogenides, comprising the following steps:

[0051] (1) Cut a nickel foam plate (65% porosity) with a thickness of 0.5mm into a size of 5×5cm; soak it in acetone, 1M hydrochloric acid, 1M potassium hydroxide, absolute ethanol, deionized Ultrasonic cleaning in water for 5 minutes, and then placed in a vacuum drying oven to raise the temperature to 70 ° C, and keep warm for 4 hours to obtain a clean nickel foam collector.

[0052] (2) taking cobalt source, sulfur source material and needle...

Embodiment 3

[0056] Embodiment 3 uses the preparation of the cobalt-nickel-based chalcogenide supercapacitor electrode plate of acicular control agent

[0057] The cobalt source and sulfur source used to prepare the active material are respectively: cobalt acetate and thiourea, and the molecular weight of the needle control agent is 500.

[0058] A method for preparing a supercapacitor electrode plate material containing a composition that can control the formation of needle-shaped cobalt-nickel-based chalcogenides, comprising the following steps:

[0059] (1) Cut a nickel foam plate (90% porosity) with a thickness of 0.5mm into a size of 5×5cm; soak it in acetone, 1M hydrochloric acid, 1M potassium hydroxide, absolute ethanol, deionized Ultrasonic cleaning in water for 5 minutes; then placed in a vacuum drying oven to raise the temperature to 75 ° C, and keep warm for 3 hours to obtain a clean nickel foam collector.

[0060] (2) taking cobalt source, sulfur source material and needle-sha...

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Abstract

The invention discloses a needle-shaped control agent and a preparation method thereof. The preparation method of the needle-shaped control agent includes the following steps: adding maleic anhydrideinto acrylonitrile according to an equimolar ratio, and performing a reaction in a water bath at 70-80 DEG C for 2-4 h; and adding the obtained materials into styrene according to an equimolar ratio,and performing a reaction in a water bath at 75-90 DEG C for 3-5 h to obtain the needle-shaped control agent. The needle-shaped control agent can be applied to a super capacitor electrode plate, and the application comprises the following steps: weighing a cobalt source, a sulfur source and the needle-shaped control agent according to a molar ratio, placing the weighed materials in glycerol, performing stirring until the cobalt source and sulfur source material are completely dissolved, transferring the obtained mixed solution to a high-pressure reactor, inserting a cleaned and dried foamed nickel current collector into the mixed solution, performing seal heating to 180-220 DEG C, performing heat preservation for 10-14 h, taking out the material, and cleaning the material to obtain the cobalt-nickel-based chalcogenide super capacitor electrode plate. The electrode plate has a high capacitance and a low electron transfer resistance value.

Description

technical field [0001] The invention belongs to the field of preparation of supercapacitor electrode materials, and in particular relates to a needle-like control agent and its preparation method and application. Background technique [0002] With the continuous advancement of science and technology and the continuous development of economy and society, human beings have an increasing demand for energy, and the ensuing global warming and environmental pollution are also becoming more and more serious. In order to better play the role of a new generation of clean energy, it is very important to design devices that can quickly store and release electric energy. A supercapacitor is an energy storage device that can quickly complete the charging and discharging process in a short period of time and achieve ultra-high output power density. According to different energy storage mechanisms, supercapacitors can be divided into electric double layer supercapacitors and Faraday pseud...

Claims

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Application Information

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IPC IPC(8): C08F212/10C08F220/44C08F222/08H01G11/24H01G11/30H01G11/86
CPCC08F212/10H01G11/24H01G11/30H01G11/86C08F220/44C08F222/08Y02E60/13
Inventor 高延敏张政施方长徐俊烽杨红洲孙存思王明明
Owner JIANGSU UNIV OF SCI & TECH
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