Home > Super Capacitor/Module
Super Capacitor/Module
What is a Super Capacitor?
Super Capacitors, also known as Electric double-layer capacitors, pseudo capacitor, electrochemical double layer capacitors (EDLCs), or ultra capacitor, are electrochemical capacitors that have an unusually high energy density when compared to common capacitors, typically on the order of thousands of times greater than a high capacity electrolytic capacitor
Advantages
-
Virtually unlimited cycle life - can be cycled millions of time.
-
Low impedance - enhances load handling when put in paralleled with a battery.
-
Rapid charging -super capacitor charge in seconds.
-
Simple charge methods - no full-charge detection is needed; no danger of overcharge.
Limitations
-
Linear discharge voltage prevents use of the full energy spectrum.
-
Low energy density - typically holds one-fifth to one-tenth the energy of an electrochemical battery.
-
Cells have low voltages - serial connections are needed to obtain higher voltages. Voltage balancing is required if more than three capacitors are connected in series.
-
High self-discharge - the rate is considerably higher than that of an electrochemical battery.
|