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A supercapacitor using ionic liquid electrolyte

A supercapacitor, ionic liquid technology, applied in electrolytic capacitors, capacitors, double-layer capacitors, etc., can solve problems such as combustion, achieve high safety performance, cost-effective, and environmentally friendly effects

Active Publication Date: 2018-08-10
南京绿索电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the application of organic electrolyte in this type of supercapacitor also brings about related safety issues, that is, under abnormal conditions (such as collision, extrusion, abnormal discharge and other extreme environments), unsafe behaviors such as burning may occur

Method used

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  • A supercapacitor using ionic liquid electrolyte

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Preparation of ionic liquid electrolyte: according to the amount of substance n(EmimCl):n(AlCl 3 )=1:1.3 ratio, slowly add EmimCl to AlCl 3 In the whole process, magnetic stirring is used to prepare EmimCl-1.3AlCl 3 ionic liquid.

[0028] (2) Preparation of electrode sheet: Mix the carbon nanotube array / graphene / manganese dioxide composite material oxidized on the surface of the active material and deionized water at a mass ratio of 1:1.2 to make an active material mixture slurry, which is coated on one side On a 0.1mm conductive substrate, dry and roll to 0.3mm, cut into 2cm×2cm to make electrode sheets, and set aside.

Embodiment 2

[0030] (1) Preparation of ionic liquid electrolyte: according to the amount of substance n(EmimCl):n(AlCl 3 )=1:1.4 ratio, slowly add EmimCl to AlCl 3 In the whole process, magnetic stirring is used to prepare EmimCl-1.4AlCl 3 ionic liquid.

[0031] (2) Preparation of electrode sheets: The active material carbon nanotube array / polyaniline / ceria composite material and deionized water are mixed at a mass ratio of 1:1.2 to make an active material mixture slurry, which is coated on one side on 0.1mm On the conductive substrate, dry and roll to 0.3mm, cut into 2cm×2cm size to make electrode sheet, set aside.

Embodiment 3

[0033] (1) Preparation of ionic liquid electrolyte: according to the amount of substance n(EmimCl):n(AlCl 3 )=1:1.5 ratio, slowly add EmimCl to AlCl 3 During the whole process of magnetic stirring, EmimCl-1.5AlCl was prepared 3 ionic liquid.

[0034] (2) Preparation of electrode sheets: The active material polyaniline nanotube array / graphene composite material and deionized water are mixed at a mass ratio of 1:1.2 to make an active material mixture slurry, which is coated on one side on a 0.1mm conductive substrate , dried and rolled to 0.3mm, cut into 2cm×2cm size to make electrode sheets, and set aside.

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Abstract

The invention provides a supercapacitor using ionic liquid electrolyte, and belongs to the field of a new energy product. The supercapacitor comprises an anode, a cathode, a diaphragm and the ionic liquid electrolyte, wherein the diaphragm and the ionic liquid electrolyte are arranged between the anode and the cathode. The ionic liquid electrolyte is an imidazolium salt chloride-aluminium chloride system, wherein molar ratio of the imidazolium salt chloride to aluminium chloride is 1:1.3-1.5. The supercapacitor, using the aluminium-containing ionic liquid electrolyte, has the advantages of being high in working voltage, wide in operating temperature range, good in cycle performance, safe to use, economical in cost and friendly to environment and the like.

Description

technical field [0001] The invention relates to a supercapacitor, in particular to a supercapacitor using an aluminum-containing ionic liquid as an electrolyte, and belongs to the field of new energy products. Background technique [0002] With the aggravation of environmental pollution and the increasingly serious energy crisis, people's demand for the development of new mobile power sources has become more and more urgent. The characteristics of supercapacitors with high power, fast rechargeability and long cycle life meet human needs for new energy sources. A supercapacitor is a new type of energy storage device that has both the high power density of a traditional capacitor and the energy density similar to a chemical power source. The charge stored in a supercapacitor is hundreds or thousands of times that of a traditional electrolytic capacitor, it can be fully charged and discharged within seconds, it has a higher power input or output than a battery, and it can be ac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/62H01G11/00
CPCY02E60/13
Inventor 熊廷玉张金春邹雪峰赵楠陆卫荣
Owner 南京绿索电子科技有限公司