The concept of thermally-chargeable supercapacitor was discussed and validated experimentally. As two double-layer supercapacitor-type devices were placed at different temperatures and connected, due to the thermal dependence of surface charge structures, the electrode potentials became different, and thermal energy could be harvested and stored as electric energy. The important effect of ion c...

Vanadium nitride film made using a thin deposition technique is promising electrode material for micro-supercapacitor applications owing to its high electrical conductivity and volumetric surface capacitance values in aqueous electrolyte. Nevertheless, the cycling stability has be improved deliver good during large number of cycles. Here, it shown that vanadium films by magnetron sputtering met...

Energy harvesting has been proved to be a novel solution to replace the batteries in remote power supply applications. Unfortunately, the limited capacity and low efficiency of output power constraint the practical applications of energy harvesting in daily life. After a systematic review of previous researches about energy harvesting in power management perspective, a circuit design, which foc...