Super
capacitor also known as electric double-layer capacitor (EDLC), super
condenser, pseudo capacitor, electrochemical double layer capacitor, or
ultracapacitors, is an electrochemical capacitor with relatively high energy
density. Compared to conventional electrolytic capacitors the energy density is
typically on the order of hundreds of times greater. In comparison with
conventional batteries or fuel cells, EDLCs also have a much higher power
density.
In this article the use of super
capacitors likes hybrid power supply for various applications is presented. The
main application is in the field of automation. The specific Power of the super
capacitors and its high lifetime (1 million of Cycles) makes it very attractive
for the startup of the automobiles. Unfortunately, the specific energy of this
component is very low. For that this technology is associated with battery to
supply the starter alternator.
This paper offers a
concise review on the use of a super capacitor in various energy storage
applications. Super capacitor is also known as Electric/electrochemical double
layer capacitor (EDLC) is a unique electrical storage device, which can store
much more energy than conventional capacitors and offer much higher power
density than batteries.
Electric
double-layer capacitor would have a capacitance of several farads, an
improvement of about two or three orders of magnitude in capacitance, but
usually at a lower working voltage. Larger, commercial electric double layer
capacitors have capacities as high as 5,000 farads. These particularities make
them very attractive for some applications as vehicle, electric grid, UPS, etc.
So, this component can used with battery to supply the high power needed for
the vehicle starting-up and acceleration, what can reduce the maximum power
given by the battery and improves the lifetime of this last one.
These super
capacitors fill up the gap between the batteries and the conventional
capacitor, allowing applications for various power and energy requirements
i.e., back up power sources for electronic devices, engine start or
acceleration for hybrid vehicles.
This paper deals
with the the construction and working of super capacitors and its application
in various electronics energy storage applications and hybrid power supply for
the vehicles. For that the battery is used us energy tank and supercapacitors
to ensure the phases which need high power (startup, acceleration etc.).
goood
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