Instantaneous reduction of inkjet-printed graphene oxide on PVDF nanofibers for high-performance ultralight flexible supercapacitors

• DOI: 10.1016/j.polymertesting.2024.108526
• Publication Date: 2024-07-20T00:42:01Z
• Authors: Qingyan Peng; Xiaodong Tan; Zbigniew Stempień; Wei Xiong; Mohanapriya Venka...; Jiri Militky
• Keywords: Polyvinylidene fluoride

As the demand for innovative electronic devices continues to grow, flexible products which offer a solution capable of adapting various shapes and deformations, are increasingly gaining prominence. This study innovatively uses electrospun polyvinylidene fluoride (PVDF) nanofibers as substrates employs reactive inkjet printing (RIP) technology deposit instantaneously reduce graphene oxide (GO), fabricating ultralight all-solid-state supercapacitors. To verify that PVDF can facilitate uniform deposition GO ink during prevent dispersion into internal structure, thereby achieving good capacitive performance with fewest layers printing, this analyzes compares differences among 1rGO/PVDF, 3rGO/PVDF, 5rGO/PVDF samples. The results have been confirmed was effectively in-situ reduced by l-ascorbic acid (AA) rGO RIP system, specific capacitance 1rGO/PVDF electrode founded 83.29 F/g at current density 2 A/g from GCD analysis corresponding energy 7.5 Wh kg−1 power 1.04 kW kg−1. supercapacitor exhibits excellent electrochemical stability, maintaining 93 % efficiency after 4000 charge-discharge cycles A/g.