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Supercapacitor, supercapacitor electrode material and preparation method of supercapacitor electrode material

A technology for supercapacitors and electrode materials, which is applied in the manufacture of hybrid capacitor electrodes and hybrid/electric double-layer capacitors, etc., can solve the problems of complex preparation process, high cost, and the performance of supercapacitor electrode materials cannot meet the needs, and achieves a simple preparation process. Effect

Inactive Publication Date: 2021-08-24
XIAN JIAOTONG LIVERPOOL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the preparation process of the existing supercapacitor electrode materials is relatively complicated, the cost is high, and the performance of the obtained supercapacitor electrode materials cannot meet the needs.

Method used

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  • Supercapacitor, supercapacitor electrode material and preparation method of supercapacitor electrode material
  • Supercapacitor, supercapacitor electrode material and preparation method of supercapacitor electrode material
  • Supercapacitor, supercapacitor electrode material and preparation method of supercapacitor electrode material

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Step 1. Weigh 4g of salt particles, add it to 35ml of deionized water, stir until the salt particles are completely dissolved, and prepare a salt solution;

[0033] Step 2. Put 2 mask papers into the salt solution and let them stand for 10 minutes. Of course, the types and materials of the mask papers are not specifically limited here;

[0034] Step 3. Cut the mask paper swollen after absorbing the saline solution into small pieces of about 1cm×1cm in size, and put them in a drying oven for vacuum drying for 24 hours;

[0035] Step 4, put the dried mask paper into the ball mill, and ball mill for 30 minutes to get the mask paper powder;

[0036] Step 5, put the mask paper powder into the crucible;

[0037] Step 6. Weigh 6g of salt particles to cover the mask paper powder;

[0038] Step 7. Heating to 900°C in air atmosphere and keeping for 1 hour;

[0039] Step 8. Neutralize the product with hydrochloric acid, wash it with deionized water until it is neutral, and then...

Embodiment 2

[0041] The preparation method of this embodiment is basically the same as that of Example 1, except that in this embodiment, 8g of salt particles are weighed in step 6 and covered on the facial mask paper powder.

Embodiment 3

[0043] The preparation method of this example is basically the same as that of Example 1, except that in this example, step 7 is to heat the mask paper powder covered with salt particles to 850° C. in an air atmosphere and keep it for 1.5 hours.

[0044] The present invention also provides a supercapacitor electrode material, which is obtained by the above-mentioned preparation method.

[0045] The present invention also provides a supercapacitor. The supercapacitor includes battery positive and negative shells, diaphragms, electrolytes, shrapnel, steel sheets, positive and negative current collectors, and positive and negative electrode materials, wherein the positive and negative electrode materials are made of obtained by the above-mentioned preparation method. The structure of a supercapacitor includes a positive electrode casing, a pole piece, a diaphragm, a pole piece, a steel piece, a shrapnel and a negative electrode casing arranged in sequence, wherein the pole pieces...

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Abstract

The invention relates to a preparation method of a supercapacitor electrode material, and the method comprises the following steps: S1, preparing a salt solution, and soaking a water absorption material in the salt solution to obtain an expanded water absorption material; S2, drying the expanded water absorbing material to obtain a dried water absorbing material; S3, carrying out ball milling on the dried water-absorbing material to obtain water-absorbing material powder; S4, covering the surface of the water absorption material powder with salt particles, and performing high-temperature activation to obtain the supercapacitor electrode material. The super-capacitor electrode material is prepared from the water absorption material with super-strong water absorption capacity and the salt, the preparation process is simple, the production cost is low, the obtained electrode material is excellent in performance, and a green and environment-friendly preparation scheme is provided for a super-capacitor.

Description

technical field [0001] The invention relates to a supercapacitor, a supercapacitor electrode material and a preparation method thereof. Background technique [0002] Energy issues have always been one of the most important issues in the rapid development of modern civilization. With the advancement of science and technology and the rapid development of society, human beings have an increasing demand for energy, while non-renewable resources such as coal, oil, and natural gas are Decreasing, serious environmental pollution, ecological problems are becoming increasingly serious. The development and utilization of new energy technologies has become a hot issue of common concern all over the world. Supercapacitor (Supercapacitor) has been widely studied as a new type of energy storage device. Supercapacitors have the characteristics of high specific energy of batteries and high specific power of traditional capacitors. 1000W / kg, far greater than the secondary battery cycle lif...

Claims

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Application Information

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IPC IPC(8): H01G11/24H01G11/30H01G11/86
CPCH01G11/30H01G11/86H01G11/24Y02E60/13
Inventor 袁宇丹邓航李星渐孙艺孙伟赵春杨莉赵策洲
Owner XIAN JIAOTONG LIVERPOOL UNIV
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