Direct Utilization of Photoinduced Charge Carriers to Promote Electrochemical Energy Storage

Electrochemical energy storage has been regarded as one of the most promising strategies for next-generation consumption. To meet increasing demands urban electric vehicles, development green and efficient charging technologies by exploitation solar should be considered outdoor in future. Herein, a light-sensitive material (copper foam-supported copper oxide/nickel oxides nanosheets arrays, namely CF@CuOx @NiCuOx NAs) with hierarchical nanostructures to promote electrochemical charge is specifically fabricated. The as-fabricated NAs have demonstrated high areal specific capacity 1.452 C cm-2 under light irradiation power 1.76 W, which 44.8% higher than obtained without light. Such (1.452 ) much that conventional supercapacitor structure using similar active redox component reported recently (NiO array@Co3 O4 -NiO FTNs: maximum 623.5 mF at 2 mA ). This photo-enhancement can attributed combination photo-sensitive Cu2 O pseudo-active NiO components. Hence, this work may provide new possibilities direct utilization sustainable realize enhanced capability devices.