Facile Growth of Hierarchical SnO2@PPy Composites on Carbon Cloth as All-Solid-State Flexible Supercapacitors

2021 ◽  
Author(s):  
Qingru Zhuang ◽  
Wenzheng Li ◽  
Zitong Zhu ◽  
Hao Yu ◽  
Wei Chen ◽  
...  
2014 ◽  
Vol 272 ◽  
pp. 16-23 ◽  
Author(s):  
Shulan Jiang ◽  
Tielin Shi ◽  
Xiaobin Zhan ◽  
Hu Long ◽  
Shuang Xi ◽  
...  

Author(s):  
Subhakaran Singh Rajaputra ◽  
Nagalakshmi Pennada ◽  
Anjaneyulu Yerramilli ◽  
Naga Mahesh Kummara

Graphene based sulfonated polyvinyl alcohol (PVA) hydrogel was synthesized and its performance as nanocomposite gel polymer electrolyte was investigated for application in quasi solid-state flexible supercapacitors. Hydrothermally reduced graphene (HRG) was synthesized through hydrothermal reduction of graphene oxide (GO). Sulfonated PVA hydrogel (SPVA) was synthesized with predetermined quantities of HRG to obtain nanocomposite gel polymer electrolytes coded as SPVA-HRG-x (x = content (wt.%) of HRG). The amorphous nature of SPVA-HRG-x was determined using X-ray diffraction (XRD) technique. The electrochemical performance of SPVA-HRG-x was evaluated using techniques like cyclic voltammetry (CV), galvanostatic charge-discharge (GCD) and electrochemical spectroscopy (EIS) studies of a lab scale supercapacitor cell, fabricated using hydrothermally reduced carbon cloth (CCHy) current collectors coated with HRG (HRG-CCHy). In SPVA-HRG-0.5 electrolyte, HRG-CCHy exhibited specific capacitance of 200 F g-1 at 1 A g-1 and specific energy of 6.1 Wh kg-1 at specific power of 1 kW kg-1 and retained 93 % of its initial capacitance even after 5000 GCD cycles. The incorporation of SPVA with 0.5 wt.% of HRG-CCHy can be attributed to the increase in amorphous nature of SPVA-HRG-0.5, which in-turn lowers its impedance. This contributed to the remarkable supercapacitive behaviour of HRG-CCHy, demonstrating its potential as gel polymer electrolyte (GPE) for application in quasi solid-state flexible supercapacitors.


RSC Advances ◽  
2015 ◽  
Vol 5 (4) ◽  
pp. 2813-2818 ◽  
Author(s):  
Shaoyi Lv ◽  
Feng Fu ◽  
Siqun Wang ◽  
Jingda Huang ◽  
La Hu

A simple dipping-and-polymerization method to prepare an interesting electrode material consisting of PPy-coated wood transverse section slice (WTSS), and fabricated an eco-friendly wood-based solid-state flexible supercapacitors.


2019 ◽  
Vol 34 ◽  
pp. 104-110 ◽  
Author(s):  
Karthikeyan Gopalsamy ◽  
Qiuyan Yang ◽  
Shengying Cai ◽  
Tieqi Huang ◽  
Zhengguo Gao ◽  
...  

2019 ◽  
Vol 236 ◽  
pp. 383-386 ◽  
Author(s):  
Kaibin Ruan ◽  
Qichang Hu ◽  
Yuzhu Wang ◽  
Bo Long ◽  
Limin Chen ◽  
...  

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