Calculation of supercapacitor battery for solar container communication station

What are supercapacitors & how do they work?

Supercapacitors (SCs) are easy to use energy storage devices and are in many aspects comparable to batteries. They can be charged by any current limited power source and drive any electrical applications. [1,2,3] SCs require, like any other energy storage system, a certain infrastructure in order to store and deliver their energy.

How do you calculate energy in a power supply?

In other words, we need to calculate the amount of energy E = P t, where P is the gross power demand and t the desired time of operation.1 ⋅ In the next step, the energy needs to be related to the energy capacity of the SC, i.e. to its capacitance. where V1 denotes charging voltage and V2 the cut-off voltage. Please note

Can a capacitor be charged up to 100 % by a constant current?

As already mentioned during the discussion of equation (Eq.8), it is physically not possible to charge a capacitor up to 100 % by a constant current Ic, as long as the applied voltage is not allowed to be larger than Vr. At a certain point Ic (RESR + Rp) will be larger than Vr - V(t).

What is a supercapcaitor (SC)?

The term Supercapcaitor (SC) is widely used. It is however, an ambiguous term, for it denotes an entire family of capacitive energy storage technologies. The correct technical term for the SCs in our current portfolio is electric double layer capacitor (EDLC). In this application note, we may use both terms synonymously.