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Updated: Mar 26, 2026
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Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System
Published on: January 7, 2022
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Recycling of typical supercapacitor materials.
Eleni C Vermisoglou1, Maria Giannouri1, Nadia Todorova1
1Institute of Nanoscience & Nanotechnology, 'Demokritos', Ag. Paraskevi, Attikis, Greece.
Summary
This study presents a low-cost method to recycle supercapacitor materials, recovering electrolyte salts and carbon for reuse. The process also safely neutralizes hazardous fluoride ions released during recycling.
Area of Science:
- Materials Science
- Electrochemistry
- Environmental Chemistry
Background:
- Supercapacitors are crucial energy storage devices.
- Recycling supercapacitor components is essential for sustainability.
- Current recycling methods are often complex and costly.
Purpose of the Study:
- To develop a simple, low-cost method for recycling supercapacitor materials.
- To recover key components like electrolyte salts and carbonaceous materials.
- To safely manage hazardous byproducts of the recycling process.
Main Methods:
- Mechanical shredding and sieving to separate components.
- Water extraction and distillation to isolate tetraethyl ammonium tetrafluoroborate (TEABF4).
- Treatment of fluoride ions with calcium acetate to form calcium fluoride (CaF2).
Main Results:
- Successful recovery of electrolyte salt (TEABF4) and carbonaceous materials.
- Recycled carbonaceous material exhibits supercapacitor behavior.
- Conversion of hazardous fluoride ions into non-hazardous CaF2.
Conclusions:
- The proposed method offers an efficient and economical approach to supercapacitor recycling.
- Recovered materials show potential for reutilization in new supercapacitors.
- The process effectively addresses environmental concerns associated with fluoride waste.
Keywords:
Recyclingacetonitrileactivated charcoalaluminiumpaperseparationsupercapacitortetraethyl ammonium tetrafluoroborateMore Related Videos
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