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Organic electrolytic solution for super capacitor and super capacitor

An organic electrolyte and supercapacitor technology, applied in the field of electrochemistry, can solve problems such as unfavorable personal safety and environmental protection, and achieve the effects of improving ionic conductivity, improving the ability of dissolution and dissociation, and good energy density

Inactive Publication Date: 2014-04-16
SHENZHEN CAPCHEM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, AN has certain toxicity, which is not conducive to personal safety and environmental protection.

Method used

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  • Organic electrolytic solution for super capacitor and super capacitor
  • Organic electrolytic solution for super capacitor and super capacitor
  • Organic electrolytic solution for super capacitor and super capacitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] In the glove box, a certain mass of methyltriethylammonium tetrafluoroborate was dissolved in aprotic solvent acetonitrile to form a solution with a concentration of 1.0mol / L, and then 0.05% triethylamine was added by total mass, A uniform mixed liquid is formed to obtain a target organic electrolyte that can be used for supercapacitors.

Embodiment 2

[0030] In the glove box, a certain mass of methyltriethylammonium tetrafluoroborate was dissolved in the aprotic solvent propylene carbonate to form a solution with a concentration of 1.0mol / L, and then 0.05% pyridine was added by total mass, A uniform mixed liquid is formed to obtain a target organic electrolyte that can be used for supercapacitors.

Embodiment 3

[0032] In a glove box, a certain mass of tetraethylammonium tetrafluoroborate was dissolved in aprotic solvent acetonitrile to form a solution with a concentration of 1.0mol / L, and then 0.05% triethylamine was added by total mass to form a uniform The mixed liquid, so as to obtain the target organic electrolyte that can be used in supercapacitors.

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PUM

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Abstract

The invention discloses an organic electrolytic solution for a super capacitor. The organic electrolytic solution for the super capacitor comprises a proton inert solvent, an organic electrolyte and an additive. Preferably, the organic electrolyte and the proton inert solvent form a 0.5-2.0mol / L solution. The additive accounts for 0.05wt%-5wt% of the organic electrolytic solution. The organic electrolytic solution for the super capacitor has the advantages that appropriate proton inert solvent components and the appropriate additive are selected, the solution ability and the dissociation ability of the electrolyte in the proton inert solvent are improved, the ion conductivity of the electrolytic solution is improved, so that the internal resistance of the organic electrolytic solution is reduced, the electrochemical stability window of the electrolytic solution is improved, and therefore the super capacitor can be used at a high working voltage (over 2.7V) and is high in power density and energy density and long in cycle life.

Description

technical field [0001] The invention relates to the field of electrochemistry, in particular to an organic electrolyte used for a supercapacitor and a supercapacitor using the organic electrolyte. Background technique [0002] Supercapacitors, also known as gold capacitors or electrochemical capacitors, store energy using ion adsorption (electric double layer capacitors) or rapid surface redox reactions (pseudocapacitors). A supercapacitor is a new type of energy storage device between batteries and traditional electrostatic capacitors. The charge stored in a supercapacitor is hundreds or thousands of times that of a traditional solid-state electrolytic capacitor. It can be fully charged and discharged within seconds, has higher power input or output than a battery, and can be achieved in a shorter time. At the same time, supercapacitors have the advantages of short charge and discharge time, long storage life, high stability, and wide operating temperature range (-40°C to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/64H01G11/60
CPCY02E60/13
Inventor 石桥向晓霞
Owner SHENZHEN CAPCHEM TECH CO LTD
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