Page 353 - Polymer-based Nanocomposites for Energy and Environmental Applications

320 Polymer-based Nanocomposites for Energy and Environmental Applications

electrolytes, considering and transforming the external effects, are critical in
accomplishing eminent power and energy thickness [30].

11.7 Characterization of supercapacitors

Supercapacitors have been characterized in two forms that are as follows.

11.7.1 Electric double layer supercapacitor
The matter utilized in this supercapacitor is not electrochemically active; thus, the dis-
charging and charging are completely physical reaction [3].
Ion adsorption and surface isolation permit the charge to be saved on the electrodes
[31]. This recurs simply on the surface, comparatively with the entire electrode. As
soon as the peripheral electric charge is enforced, the electrons in the negative elec-
trode shift to the positive electrode. Electric double-layer energy storage mechanism
schematic is described in Fig. 11.2.

Charger

Collector Collector
Polarizing electrodes

+ − + −

+ − + Separator + −
+ − − + −

+ − Electrolyte + −

+ − − + + −

+ − + −

+ Electric double layer −

Fig. 11.2 Electrochemical double-layer energy storage mechanism.