Kiribati capacitor coating

What are electrochemical capacitors?

1. Introduction Electrochemical capacitors (often called supercapacitors or ultracapacitors) are devices capable of storing electric energy in the electrical double–layer, which is formed at the electrode/electrolyte interface.

Does corrosion affect the long-term performance of electrochemical capacitors?

Based on the obtained results, it is concluded that the corrosion process of current collectors significantly influences the long–term performance of electrochemical capacitors. This influence appears much faster than the degradation of the electrode material and cannot be neglected once long–term performance is evaluated.

What is the specific capacitance of carbon based devices?

As the capacitance of the electrical double–layer ranges from 10–50 µF⋅cm –2, the specific capacitance of carbon–based devices reaches several hundred farads per gram of active electrode material.

Are activated carbon based materials a good candidate for a capacitive technology?

Capacitive technologies usually demonstrate an excellent long–term performance and in–depth research on novel materials with great stability over thousands of cycles is still performed. Nevertheless, activated carbons (and carbon–based materials) seem to be the most suitable candidates.

What is the role of electrolyte in electrochemical capacitor applications?

The prominent role of the electrolyte in electrochemical capacitor applications has been widely discussed elsewhere , , , , , . Capacitive technologies usually demonstrate an excellent long–term performance and in–depth research on novel materials with great stability over thousands of cycles is still performed.

Who are the authors of Béguin ageing behaviour of electrochemical double layer capacitors?

P. Azaïs, L. Duclaux, P. Florian, D. Massiot, M.-. A. Lillo-Rodenas, A. Linares-Solano, J.-.P. Peres, C. Jehoulet, F. Béguin Ageing behaviour of electrochemical double layer capacitors - part II.