Sulfonated Polyethylene Glycol Hydrogel Nanocomposite Based on Graphene for Flexible Super capacitors

The overall performance of a graphene-primarily based totally sulfonated polyethylene glycol (PEG) hydrogel as a nanocomposite gel polymer electrolyte in quasi solid state bendy supercapacitors became explored. HRG became created through decreasing graphene oxide hydrothermally (GO). SPEG-HRG-y (y =...

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Published in2022 IEEE 2nd Mysore Sub Section International Conference (MysuruCon) pp. 1 - 7
Main Authors Srinivasa Babu, P. S., Giridhar, Atluri, Shameem, Syed, Yugesh, Jampani, Paul Jillella, Shekin
Format Conference Proceeding
LanguageEnglish
Published IEEE 16.10.2022
Subjects
carbon cloth
cyclic voltammetry
electro chemical double layer super capacitors
electrochemical impedance
flexible super capacitors
gel polymer electrolyte
Graphene
Hydrogels
Polyethylene
Resistance
specific capacitance
specific energy
Supercapacitors
X-ray diffraction
X-ray scattering
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Summary:The overall performance of a graphene-primarily based totally sulfonated polyethylene glycol (PEG) hydrogel as a nanocomposite gel polymer electrolyte in quasi solid state bendy supercapacitors became explored. HRG became created through decreasing graphene oxide hydrothermally (GO). SPEG-HRG-y (y = content (wt.%) of HRG) nanocomposite gel polymer electrolytes were created by combining sulfonated PEG hydrogel (SPEG) with chosen sections of HRG. Using the (XRD) X-ray diffraction technique, the amorphous character of SPEG-HRG-y was found. On a lab scale of supercapacitor constructed with HRG-lined CCHy cutting-edge collectors, the electrochemical overall performance of SPEG-HRG-y was assessed using (CV) cyclic voltammetry, (GCD) galvanostatic charge discharge, (EIS) electrochemical impedance spectroscopy investigations (HRG - CCHy). HRG-CCHy had a particular capacitance of 244 Farad per gram (Fg-1) at 1 Amp per gram (Ag-1) and a particular specific energy of 6.2 Watt hours per kilogram (Wh kg-1) at a specific power of 1 kilo watt per kilo gram (kg-1) in SPEG-HRG-0.5 electrolyte, and it only maintained 91% of its preliminary capacitance after 5000 GCD cycles. The addition of 0.5 wt.% of HRG-CCHy to SPEG causes an increase in the amorphous character of SPEG-HRG0.5, lowering its impedance. Due to the excellent capacitive behaviour of HRG-first rate CCHy, it is most likely used as a (GPE) gel polymer electrolyte in quasi solid state flexible bendy supercapacitors.
DOI:10.1109/MysuruCon55714.2022.9972543