Chen, X.; Holze, R. Surfactants as Performance-Enhancing Additives in Supercapacitor Electrolyte Solutions—An Overview. Batteries2024, 10, 4.
Chen, X.; Holze, R. Surfactants as Performance-Enhancing Additives in Supercapacitor Electrolyte Solutions—An Overview. Batteries 2024, 10, 4.
Chen, X.; Holze, R. Surfactants as Performance-Enhancing Additives in Supercapacitor Electrolyte Solutions—An Overview. Batteries2024, 10, 4.
Chen, X.; Holze, R. Surfactants as Performance-Enhancing Additives in Supercapacitor Electrolyte Solutions—An Overview. Batteries 2024, 10, 4.
Abstract
Wetting of the surface area of an electrode materials as complete as possible is desirable to achieve optimum specific capacity of an electrode material. Keeping this surface area utilized even at high current densities and even when inside of pores is required for high capacitance reten¬tion. The addition of surfactants at very small concentration to aqueous supercapacitor electro¬lyte solutions has been suggested as a way to improved performance in terms of capacitance, ca¬pacitance retention at increased current density and higher stability. Effects are pronounced with car¬bon materials used in electro-chemical double layer capacitors, they are also observed with re¬dox materials. Causes of the observed improvements and mode of operation of the added surfac¬tants seem to need further investigations; they are inconclusive beyond the obvious statement of in¬creased wetting. Reported examples and the current state of understanding are reviewed.
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