Storage and usage system of electrostatic energy with EDCL
Andreea Brodeala, Alexandru Vasile, Paul Mugur Svasta, Bogdan Mihăilescu · 2011
An EDLC is an electric capacitor (almost linear) where the energy is stored as separate charge (electrons and ions) under electrostatic voltage in the double layer electrostatic field formed in the micropores of the electrodes formed from aluminum and fibers of carbon particles. Despite the presence of ions (resulting from the liquid electrolyte where electrodes are immersed), no electrochemical reaction is involved in the separation and storage process of the electric charge. The internal nanoscopic structure and organization of the materials from the electrodes and electrolyte, makes the electric area of the capacitor to reach approximately 1,000 square meters for a gram of electrode [1]. An important consequence of this is that types of EDLC (with constant properties) exhibiting capacities up to 5000F have been obtained in series production. An important characteristic of EDLCs is the loading and discharge current which can reach values of 1000 A. This feature allows their use in specific storage applications of recovered energy both in the field of automotive electronics as well as for "green energy".