The curve given (pic attachment) shows that there are two parts of supercapacitor discharge: resistive and capacitive.
The explanation given for the resistive voltage drop was:
“A voltage drop at the initial discharge is an energy loss due to the equivalent series resistance (ESR) that is embedded in any kind of capacitors”
My thinking is that:
Why does the ESR cause such a drop? In basic capacitor theory, the capacitor discharges exponentially through a resistive load. So, can’t the ESR be seen as part of the “load” by the capacitor and thus, shouldn’t the discharge be a smooth exponential?
Instead the curve shows a resistive voltage drop initially, and an almost straight line drop after that. Doesn’t this contradict capacitor behavior? Or am I missing something about supercapacitors?
The explanation given for the resistive voltage drop was:
“A voltage drop at the initial discharge is an energy loss due to the equivalent series resistance (ESR) that is embedded in any kind of capacitors”
My thinking is that:
Why does the ESR cause such a drop? In basic capacitor theory, the capacitor discharges exponentially through a resistive load. So, can’t the ESR be seen as part of the “load” by the capacitor and thus, shouldn’t the discharge be a smooth exponential?
Instead the curve shows a resistive voltage drop initially, and an almost straight line drop after that. Doesn’t this contradict capacitor behavior? Or am I missing something about supercapacitors?