Every year, over 500 billion plastic water bottles are produced worldwide, with most being used only once before disposal.
Researchers, led by Professor Yun Hang Hu, have found a way to transform old bottles into high-performance supercapacitors, which store and release energy efficiently.
The research, published in Energy & Fuels, developed new heat-based techniques to upcycle plastic bottles made of polyethylene terephthalate (PET) into key components for an all-plastic supercapacitor.
The results show that the upcycled device performed as well as, or slightly better than, similar supercapacitors made with traditional materials.
Author's summary: Scientists transform plastic bottles into powerful energy devices.