Antibacterial triboelectric membrane-based highly-efficient self-charging supercapacitors

Supercapacitors as energy storage components can store but cannot generate electric energy, resulting in the periodical charging issues when sustainably powering electronic devices due to limited capacities. To address this issue, we have demonstrated the feasibility of utilizing two supercapacitors to simultaneously generate and store electric energy for realizing self-charging functions. The supercapacitors can be charged by themselves instead of connecting to an external power source to directly power some electronic devices such as a red LED. Moreover, the self-charging supercapacitors have antibacterial functions by using SiO2/Ag-doped polyamide membrane with a doping concentration of about 0.03%. These advantages of the self-charging supercapacitors can provide important applications in self-powered electronics and smart windows.237