Supercapacitor-battery hybrid energy storage for portable smart devices using supercapacitor swapping energy harvester

Abstract

A novel hybrid energy storage mechanism for portable smart devices that combine supercapacitors and batteries is proposed. Supercapacitors offer rapid charging and high-power delivery, which are ideal for short bursts of power activity, and batteries provide long-term energy storage. The system incorporates a solar energy harvester that efficiently charges the supercapacitor. A unique swapping converter topology allows for quick replacement of depleted supercapacitors with charged ones. This hybrid approach along with the solar harvester aims to extend device operation and reduce reliance on conventional battery charging methods and converters.