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Ali EftekhariAli EftekhariAli EftekhariAli EftekhariAli EftekhariAli EftekhariAli Eftekhari

Supercapacitors

Supercapacitors are vital member of modern electrochemical power sources. The main effort in his area of research is to improve the capacitive behavior of cheaper electroactive materials to replace classical supercapacitors. We aim to look at the issue from a different perspective to introduce new opportunities.

Wide Potential Window in Aqueous Media


Obviously, aqueous media are better than non-aqueous media, but they suffer from a critical disadvantage: electrolyte instability at high and low potentials. This leaves a narrow potential window, which leads to a low energy density of power sources. Thus, most of electrochemical power sources are based on non-aqueous media.

In a recent project, we discovered the magical role of functional groups spread across the graphite oxide structure to widen the stable potwntial window of an aqueous supercapacitor. As a result, we can have a wide potential window comparable with non-aqueous media.

Supercapacitors
Supercapacitors
Supercapacitors


Changing Electrochemical Behavior Towards Capacitive


Pseudo-capacitive behavior is not far from battery performance, and it is possible to alter current battery electordes to show capacitive behavior. It is necessary to control the electrochemical behavior from a fundamental perspective. This control should be started from synthesis basis, where we can control the material properties.

Supercapacitors
Supercapacitors



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