Enhancement of electrochemical properties by polysulfide trapping in a graphene-coated sulfur cathode on patterned current collector

2016 ◽  
Vol 52 (15) ◽  
pp. 3203-3206 ◽  
Author(s):  
Seung-Ho Yu ◽  
Bora Lee ◽  
Sinho Choi ◽  
Soojin Park ◽  
Byung Hee Hong ◽  
...  

A sulfur cathode on a honeycomb-shape-patterned Al current collector was prepared and successfully sealed using triple-layered graphene.

2021 ◽  
Vol 285 ◽  
pp. 129115
Author(s):  
Natsuki Nakamura ◽  
Tokihiko Yokoshima ◽  
Hiroki Nara ◽  
Hitoshi Mikuriya ◽  
Ayahito Shiosaki ◽  
...  

2018 ◽  
Vol 20 (43) ◽  
pp. 27350-27360 ◽  
Author(s):  
Yuxi Ma ◽  
Jason D. Nicholas

This work demonstrates, for the first time, that a variety of disparate and technologically-relevent thermal, mechanical, and electrochemical oxygen-exchange material properties can all be obtained from in situ, current-collector-free wafer curvature measurements.


2013 ◽  
Vol 577 ◽  
pp. S190-S194 ◽  
Author(s):  
Gyu-bong Cho ◽  
Bo-min Kim ◽  
Jung-pil Noh ◽  
Yeon-min Im ◽  
Sang-hun Lee ◽  
...  

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Haihua Zhu ◽  
Shunjin Peng ◽  
Weijie Jiang

The polyaniline (PANI) powder with globular sponge-like morphology was prepared by chemical solution polymerization, and its morphology and chemical structure were characterized by scanning electron microscope (SEM) and Fourier transform infrared spectroscopy (FTIR), respectively. The single electrode of electrochemical capacitor was made using the prepared PANI powder as active material and carbon paper as current collector. Electrochemical properties of PANI as a single electrode in 1 M HCl and 1 M H2SO4electrolyte solution were tested by galvanostatic charge/discharge (GCD) and cyclic voltammetry (CV) techniques. It has been found that PANI has higher specific capacitance of 302.43 Fg−1, higher specific energy of 54.44 Wh·kg−1at 0.5 Ag−1, and higher working potential in 1 M HCl than those in 1 M H2SO4.


2008 ◽  
Vol 184 (2) ◽  
pp. 548-552 ◽  
Author(s):  
Young-Jin Choi ◽  
Young-Dong Chung ◽  
Chang-Yong Baek ◽  
Ki-Won Kim ◽  
Hyo-Jun Ahn ◽  
...  

2012 ◽  
Vol 501 ◽  
pp. 13-18 ◽  
Author(s):  
Awitdrus Awitdrus ◽  
Mohamad Deraman ◽  
Ibrahim Abu Talib ◽  
Rakhmawati Farma ◽  
Ramli Omar ◽  
...  

Green Monoliths (GMs) of self-adhesive carbon grain from fibers of oil palm empty fruit bunches were prepared by compression pressure at 1.43 × 107, 1.91 × 107 and 2.39 × 107 kg/m2, respectively. Activated carbon monoliths ACM-A, ACM-B and ACM-C prepared by CO2 activation from these GMs, respectively, were used as electrodes in supercapacitor cells which employed stainless steel 316L current collector and H2SO4 electrolyte. Evaluation of the electrochemical properties showed that ACM-A, ACM-B and ACM-C cells had specific capacitance of 30, 9 and 5 F/g, total ESR of 3.21, 4.95 and 7.33 Ω, specific power (maximum) of 173.41, 107.58 and 33.82 W/kg, and specific energy (maximum) of 0.67, 0.15 and 0.09 Wh/kg. These properties are directly associated with the surface area of the ACMs, i.e. 419, 336 and 302 m2/g for the ACM-A, ACM-B and ACM-C, respectively, indicating a direct effect of compression pressure on the physical and electrochemical properties of ACMs electrodes.


2019 ◽  
Vol 19 (11) ◽  
pp. 1150-1155 ◽  
Author(s):  
Prerna Chaturvedi ◽  
Amarsingh Bhabu Kanagaraj ◽  
Maryam Sultan Al Nahyan ◽  
Hamda Al Shibli ◽  
Amal Abdulla Ashoor ◽  
...  

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