Long-life flexible supercapacitors based on nitrogen-doped porous graphene@π-conjugated polymer film electrodes and porous quasi-solid-state polymer electrolyte

2019 ◽  
Vol 317 ◽  
pp. 250-260 ◽  
Author(s):  
Jie Jin ◽  
Hongchun Mu ◽  
Wenqiang Wang ◽  
Xingwei Li ◽  
Qilin Cheng ◽  
...  
2016 ◽  
Vol 4 (20) ◽  
pp. 7848-7858 ◽  
Author(s):  
Jung Yup Lim ◽  
Jin Kyu Kim ◽  
Jung Min Lee ◽  
Du Yeol Ryu ◽  
Jong Hak Kim

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.


2015 ◽  
Vol 51 (39) ◽  
pp. 8269-8272 ◽  
Author(s):  
Wen-Bin Luo ◽  
Shu-Lei Chou ◽  
Jia-Zhao Wang ◽  
Yong-Mook Kang ◽  
Yu-Chun Zhai ◽  
...  

A gel–solid state polymer electrolyte has been used as the separator and an electrolyte for lithium oxygen batteries, which can not only avoid electrolyte evaporation but also protect the lithium metal anode during reactions over long-term cycling.


2019 ◽  
Vol 7 (13) ◽  
pp. 7501-7515 ◽  
Author(s):  
Xianyi Cao ◽  
Shuai Jia ◽  
Wei Huang ◽  
Yingying Tang ◽  
Jens Øllgaard Duus ◽  
...  

Nitrogen-doped hybrid-dimensional nanocarbons are architectured into special structures and used for fabrication of solid-state flexible supercapacitors showing high-performance energy storage capacity.


2018 ◽  
Vol 11 (4) ◽  
pp. 941-951 ◽  
Author(s):  
Hongfei Li ◽  
Cuiping Han ◽  
Yan Huang ◽  
Yang Huang ◽  
Minshen Zhu ◽  
...  

A long-life, high-capacity, highly safe and wearable solid-state zinc ion battery was constructed using a novel gelatin and PAM based electrolyte.


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.


Small ◽  
2021 ◽  
Vol 17 (31) ◽  
pp. 2170160
Author(s):  
Xue Wang ◽  
Yanan Liu ◽  
Huili Li ◽  
Tian Lv ◽  
Jun Wan ◽  
...  

2020 ◽  
pp. 118940
Author(s):  
Zheng Zhang ◽  
Ying Huang ◽  
Heng Gao ◽  
Chao Li ◽  
Jiaxin Huang ◽  
...  

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