High performance fiber-shaped all-solid-state symmetric supercapacitor based on mesoporous CuCo2S4 nanosheets

2018 ◽  
Vol 30 (1) ◽  
pp. 667-676 ◽  
Author(s):  
Jiqiu Qi ◽  
Xiaofeng Liu ◽  
Yanwei Sui ◽  
Yezeng He ◽  
Yaojian Ren ◽  
...  

2021 ◽  
pp. 100758
Author(s):  
Neng Yu ◽  
Yanpeng Li ◽  
Lei Wang ◽  
Xiaohui Wang ◽  
Zhilong Sun ◽  
...  


2019 ◽  
Vol 45 (17) ◽  
pp. 21534-21543 ◽  
Author(s):  
Chen Zhou ◽  
Jingjing Wang ◽  
Xuehua Yan ◽  
Xiaoxue Yuan ◽  
Dongfeng Wang ◽  
...  




Polymers ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1247 ◽  
Author(s):  
Jincy Jyothibasu ◽  
Rong-Ho Lee

A highly porous freestanding supercapacitor electrode has been fabricated through a simple, inexpensive, bulk-scalable, and environmentally friendly method, without using any extra current collector, binder, or conducting additive. Benefiting from its unique micro-tubular hollow structure with a thin cell wall and large lumen, kapok fiber (KF) was used herein as a low-cost template for the successive growth of polypyrrole (PPy) through in situ chemical polymerization. This PPy-coated KF (KF@PPy) was blended with functionalized carbon nanotubes (f-CNTs) to form freestanding conductive films (KF@PPy/f-CNT) through a simple dispersion and filtration method. The hybrid film featuring the optimal composition exhibited an outstanding areal capacitance of 1289 mF cm−2 at a scan rate of 5 mV s−1. Moreover, an assembled all-solid-state symmetric supercapacitor featuring a PVA/H2SO4 gel electrolyte exhibited not only areal capacitances as high as 258 mF cm−2 (at a scan rate of 5 mV s−1) but also excellent cycling stability (97.4% of the initial capacitance after 2500 cycles). Therefore, this efficient, low-cost, scalable green synthesis strategy appears to be a facile and sustainable way of fabricating high-performance flexible supercapacitors incorporating a renewable cellulose material.





2021 ◽  
Vol 269 ◽  
pp. 115166
Author(s):  
Xuehua Yan ◽  
Jieyu Miao ◽  
Jingjing Wang ◽  
Hui Jiang ◽  
Mingyu You ◽  
...  




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