Porous MnO2 Nano Whiskers Bunch/Activated Carbon Based Composite Electrodes for High Energy Density Supercapacitor

2013 ◽  
Vol 2 (11) ◽  
pp. M61-M63 ◽  
Author(s):  
L. S. Aravinda ◽  
K. Udaya Bhat ◽  
B. R. Bhat
Keyword(s):  
Activated Carbon ◽  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Composite Electrodes ◽  
Carbon Based

scholarly journals Na0.76V6O15/Activated Carbon Hybrid Cathode for High-Performance Lithium-Ion Capacitors

Materials ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 122
Author(s):  
Renwei Lu ◽  
Xiaolong Ren ◽  
Chong Wang ◽  
Changzhen Zhan ◽  
Ding Nan ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Energy Density ◽  
Power Density ◽  
Cathode Materials ◽  
Low Cost ◽  
Lithium Ion ◽  
High Energy ◽  
Cycling Stability ◽  
High Energy Density ◽  
Artificial Graphite

Lithium-ion hybrid capacitors (LICs) are regarded as one of the most promising next generation energy storage devices. Commercial activated carbon materials with low cost and excellent cycling stability are widely used as cathode materials for LICs, however, their low energy density remains a significant challenge for the practical applications of LICs. Herein, Na0.76V6O15 nanobelts (NaVO) were prepared and combined with commercial activated carbon YP50D to form hybrid cathode materials. Credit to the synergism of its capacitive effect and diffusion-controlled faradaic effect, NaVO/C hybrid cathode displays both superior cyclability and enhanced capacity. LICs were assembled with the as-prepared NaVO/C hybrid cathode and artificial graphite anode which was pre-lithiated. Furthermore, 10-NaVO/C//AG LIC delivers a high energy density of 118.9 Wh kg−1 at a power density of 220.6 W kg−1 and retains 43.7 Wh kg−1 even at a high power density of 21,793.0 W kg−1. The LIC can also maintain long-term cycling stability with capacitance retention of approximately 70% after 5000 cycles at 1 A g−1. Accordingly, hybrid cathodes composed of commercial activated carbon and a small amount of high energy battery-type materials are expected to be a candidate for low-cost advanced LICs with both high energy density and power density.

scholarly journals Towards high-energy-density supercapacitors via less-defects activated carbon from sawdust

2020 ◽  
Vol 362 ◽  
pp. 137152
Author(s):  
Obinna Egwu Eleri ◽  
Kingsley Ugochukwu Azuatalam ◽  
Mona Wetrhus Minde ◽  
Ana Maria Trindade ◽  
Navaneethan Muthuswamy ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Energy Density ◽  
High Energy ◽  
High Energy Density

scholarly journals Erratum: Dimercaptan–polyaniline composite electrodes for lithium batteries with high energy density

Nature ◽  
1995 ◽  
Vol 374 (6518) ◽  
pp. 196-196 ◽  
Author(s):  
N. Oyama ◽  
T. Tatsuma ◽  
T. Sato ◽  
T. Sotomura
Keyword(s):  
Energy Density ◽  
Lithium Batteries ◽  
High Energy ◽  
High Energy Density ◽  
Composite Electrodes

A high energy density asymmetric supercapacitor based on a CoNi-layered double hydroxide and activated carbon

Carbon ◽  
2016 ◽  
Vol 100 ◽  
pp. 710 ◽  
Author(s):  
Li-jing Xie ◽  
Guo-hua Sun ◽  
Long-fei Xie ◽  
Fang-yuan Su ◽  
Xiao-ming Li ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Energy Density ◽  
Layered Double Hydroxide ◽  
High Energy ◽  
High Energy Density ◽  
Asymmetric Supercapacitor ◽  
Double Hydroxide

All-carbon-based cathode for a true high-energy-density Li-O2 battery

Carbon ◽  
2017 ◽  
Vol 114 ◽  
pp. 311-316 ◽  
Author(s):  
Hee-Dae Lim ◽  
Young Soo Yun ◽  
Se Youn Cho ◽  
Kyu-Young Park ◽  
Min Yeong Song ◽  
...  
Keyword(s):  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Carbon Based
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