Portable integrated photo-charging storage device operating at 3 V

Air-Processed All-Inorganic Halide Perovskites Integrated Photorechargeable Supercapacitors

“…This electricity is then immediately stored in the energy storage section. The photocharged power pack releases the stored electricity to power the external devices wherever and whenever necessary, indicating the completion of the “photoelectrochemical” energy conversion. − Much work has gone into developing integrated systems with excellent power conversion and storage efficiency. − But even with these advancements, there are still issues with electrical performance (slow photocharging and discharging rates, relatively low power density, and electrical mismatch in components) and manufacturing processes. ,− The type of integration also plays a vital role in device performance. For the solar cell and supercapacitor to be fully integrated, they must share the same electrode or substrate.…”

Combining Supercapacitor and Energy Harvesting Devices with Magnets Integrated with Interfacial Materials for Efficient Current Transfer

“…For instance, the high-in-cost metal-based conductive paste, Ag paste, was coated on the Ag contact of an MAPbI 3 -based perovskite solar cell and in contact with an activated carbon (AC) supercapacitor. 21 The photocharging time duration of the photosupercapacitor with Ag paste as the interface was reduced by 90% from 22 s in wire connection to 2 s. Although the high conductivity of the Ag paste interface leads to promising effective current transmission, the utilization of Ag paste induces further metal mining, which is less environmentally friendly. The wire-/fibertype photosupercapacitors are innovative, nonetheless, requiring the complex dipping and drying process for the preparation of each layer and the weaving process.…”

“…However, the issue arises when the interfacial materials are high in cost, there is a complicated manufacturing process involved, and no individual part is detachable from one another in all of these assemblies. For instance, the high-in-cost metal-based conductive paste, Ag paste, was coated on the Ag contact of an MAPbI 3 -based perovskite solar cell and in contact with an activated carbon (AC) supercapacitor . The photocharging time duration of the photosupercapacitor with Ag paste as the interface was reduced by 90% from 22 s in wire connection to 2 s. Although the high conductivity of the Ag paste interface leads to promising effective current transmission, the utilization of Ag paste induces further metal mining, which is less environmentally friendly.…”