Activated Carbon Modified by Adhesion Promoter for Supercapacitor

Abstract

In this study, we investigated a simple strategy by introducing a adhesion promoter into the electrode to improve decrease bonder content and the supercapacitor performance. The improved electrodes are characterized by scanning electron microscopy (SEM) and electrochemical measurements. According to the results, the treated activated carbon electrode retains good adhesion strength with smaller bonder content. The electrode prepared using activated carbon treated with the adhesion promoter and a bonder mass content of 7.0 % shows the best electrochemical performance. The specific capacitance reaches 347.5 F•g-1, whereas the internal resistance is 0.94 Ω.

Substitution of Acetylene Black by Using Modified Flake Graphite Applied in Activated Carbon Supercapacitors

“…Supercapacitors (SCs), also known as electrochemical capacitors (ECs), hybrid capacitors, or ultracapacitors, are highly promising power devices that are superior to conventional physical capacitors and batteries in many aspects. These devices also play an important role in the energy-storage field [1,2]. SCs show high power density, fast charging/discharging rate, sustainable cycling life, and excellent cycle stability [3,4].…”