Self-discharge analysis and characterization of supercapacitors for environmentally powered wireless sensor network applications

- This paper extends our variable leakage resistance model of supercapacitors.
- A new model parameter determination process is proposed and implemented.
- Variable leakage resistance is related to supercapacitor voltage instead of time.
- Variable leakage resistance is approximated by a piecewise linear function.
- Effects of initial voltage and temperature on self-discharge are explored.