An amphiphilic block–graft copolymer electrolyte: synthesis, nanostructure, and use in solid-state flexible supercapacitors

2016 ◽  
Vol 4 (20) ◽  
pp. 7848-7858 ◽  
Author(s):  
Jung Yup Lim ◽  
Jin Kyu Kim ◽  
Jung Min Lee ◽  
Du Yeol Ryu ◽  
Jong Hak Kim
Keyword(s):  
Solid State ◽  
Polymer Electrolyte ◽  
Graft Copolymer ◽  
Flexible Supercapacitors ◽  
Nanostructured Polymer ◽  
Copolymer Electrolyte

A highly ionic conductive amphiphilic nanostructured polymer electrolyte with good flexibility is prepared based on a SBS-g-POEM block–graft copolymer. The performance of solid-state flexible supercapacitors based on the SBS-g-POEM electrolyte was much higher than that of the widely used conventional PVA/H3PO4 electrolyte.

High-performance solid-state bendable supercapacitors based on PEGBEM-g-PAEMA graft copolymer electrolyte

2020 ◽  
Vol 384 ◽  
pp. 123308 ◽  
Author(s):  
Dong A. Kang ◽  
Kihoon Kim ◽  
Swapnil S. Karade ◽  
Hansung Kim ◽  
Jong Hak Kim
Keyword(s):  
Solid State ◽  
Graft Copolymer ◽  
High Performance ◽  
Copolymer Electrolyte

scholarly journals Graphene based sulfonated polyvinyl alcohol hydrogel nanocomposite for flexible supercapacitors

2021 ◽  
Author(s):  
Subhakaran Singh Rajaputra ◽  
Nagalakshmi Pennada ◽  
Anjaneyulu Yerramilli ◽  
Naga Mahesh Kummara
Keyword(s):  
Solid State ◽  
Polyvinyl Alcohol ◽  
Polymer Electrolyte ◽  
Gel Polymer Electrolyte ◽  
Specific Power ◽  
Carbon Cloth ◽  
X Ray Diffraction ◽  
Flexible Supercapacitors ◽  
Amorphous Nature ◽  
Pva Hydrogel

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.

scholarly journals Regulating the Self‐Discharge of Flexible All‐Solid‐State Supercapacitors by a Heterogeneous Polymer Electrolyte (Small 31/2021)

Small ◽  
2021 ◽  
Vol 17 (31) ◽  
pp. 2170160
Author(s):  
Xue Wang ◽  
Yanan Liu ◽  
Huili Li ◽  
Tian Lv ◽  
Jun Wan ◽  
...  
Keyword(s):  
Solid State ◽  
Polymer Electrolyte ◽  
The Self ◽  
Heterogeneous Polymer

3D glass fiber cloth reinforced polymer electrolyte for solid-state lithium metal batteries

2020 ◽  
pp. 118940
Author(s):  
Zheng Zhang ◽  
Ying Huang ◽  
Heng Gao ◽  
Chao Li ◽  
Jiaxin Huang ◽  
...  
Keyword(s):  
Solid State ◽  
Glass Fiber ◽  
Polymer Electrolyte ◽  
Lithium Metal ◽  
Lithium Metal Batteries ◽  
Reinforced Polymer
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