Affiliation:
1. Institute for Technical Chemistry and Environmental Chemistry Friedrich Schiller University Jena Philosophenweg 7a 07743 Jena Germany
2. Center for Energy and Environmental Chemistry Jena (CEEC Jena) Friedrich Schiller University Jena Philosophenweg 7a 07743 Jena Germany
3. Institute of Physical Chemistry Friedrich Schiller University Jena Lessingstraße 10 07743 Jena Germany
Abstract
AbstractThe utilization of tetraethylammonium perfluorobutane sulfonate as a promising alternative salt for electrolyte solutions in electrochemical double layer capacitors is introduced in this study. A thorough analysis of the physical and electrochemical characteristics of tetraethylammonium perfluorobutane sulfonate was conducted, including the assessment of its ionic conductivity, viscosity, and thermal behavior, using a 1 M solution in acetonitrile. Comparative assessments were made between the performance of this novel electrolyte and two well‐studied electrolytes: 1 M tetraethylammonium tetrafluoroborate and 1 M tetraethylammonium bis(trifluoromethanesulfonyl)imide in acetonitrile, focusing on electrochemical performance and long‐term stability. Furthermore, an investigation into the impact of tetraethylammonium perfluorobutane sulfonate on the anodic dissolution of aluminum current collectors was conducted. The results highlight the potential of tetraethylammonium perfluorobutane sulfonate as an effective replacement for bis(trifluoromethanesulfonyl)imide‐based electrolytes.
Funder
Deutsche Forschungsgemeinschaft