Improving the Electrochemical Performance of Hybrid Supercapacitor using Well-organized Urchin-like TiO 2 and Activated Carbon

2016 ◽  
Vol 208 ◽  
pp. 202-210 ◽  
Author(s):  
Hyeong-Jong Choi ◽  
Jin Hyeon Kim ◽  
Hong-Ki Kim ◽  
Seung-Hwan Lee ◽  
Young-Hie Lee
Keyword(s):  
Activated Carbon ◽  
Electrochemical Performance ◽  
Hybrid Supercapacitor

Electrochemical Performance of Lithium-Ion Hybrid Supercapacitors based on Activated Carbon and Nanoplatelet Li4Ti5O12 Insertion Electrode Synthesized by Nanoscission Technique

2015 ◽  
Vol 1740 ◽  
Author(s):  
Sandeep Singh ◽  
Alok C Rastogi ◽  
Fredrick Omenya ◽  
M Stanley Whittingham ◽  
Archit Lal ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Electrochemical Performance ◽  
Lithium Ion ◽  
Charge Transfer Resistance ◽  
Electrode Polarization ◽  
Hybrid Supercapacitor ◽  
Transfer Resistance ◽  
Hybrid Supercapacitors ◽  
Current Change ◽  
Kinetic Effects

ABSTRACTElectrochemical performance of hybrid supercapacitor (HSC) utilizing surface sculpted Li4Ti5O12 (LTO) insertion electrode having nanoplatelet-like morphology and activated carbon (AC) electrode is investigated for energy storage application. Cyclic voltammetry (CV) at variable scan rates 0.5 to 60 mV.s-1 in the 0-3.2 V range show pseusocapacitive behavior and fast rate of current change indicating rapid Faradaic kinetics. Nyquist impedance study show charge transfer resistance due to kinetic effects of electron transfer and Li+ de-intercalation process at the LTO anode. Low capacity (0.2 C-1C) charge-discharge (CD) curves show high Coulomb efficiency with marginal reduction at high 5-10 C rates due to irreversibility of adsorbed PF6 anions at the electrolyte-AC interface. Galvanostatic CD cycling tests over 50 cycles at different C-rates show decline in storage capacity due to electrode polarization effects. Reduction, broadening and shift of the Raman line at 678 cm-1 from Ti-O bonds in TiO6 octahedra after cycling indicates Li insertion reactions in functioning of hybrid supercapacitor. The hybrid supercapacitor cells have shown energy density, 29 Wh.kg-1 and power density, 350 W.kg-1.

Electrochemical Performance of α-MnO2 Nanorods/Activated Carbon Hybrid Supercapacitor

2012 ◽  
Vol 4 (7) ◽  
pp. 724-728 ◽  
Author(s):  
V. Aravindan ◽  
M. V. Reddy ◽  
S. Madhavi ◽  
G. V. Subba Rao ◽  
B. V. R. Chowdari
Keyword(s):  
Activated Carbon ◽  
Electrochemical Performance ◽  
Hybrid Supercapacitor

Effect of the Electrolyte Alkaline Ions on the Electrochemical Performance of α-Ni(OH)2 /Activated Carbon Composites in the Hybrid Supercapacitor Cell

2017 ◽  
Vol 2 (23) ◽  
pp. 6693-6698 ◽  
Author(s):  
L. Soserov ◽  
T. Boyadzhieva ◽  
V. Koleva ◽  
Ch. Girginov ◽  
A. Stoyanova ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Electrochemical Performance ◽  
Carbon Composites ◽  
Hybrid Supercapacitor

Electrochemical performance of hybrid supercapacitor fabricated using multi-structured activated carbon

2014 ◽  
Vol 47 ◽  
pp. 5-8 ◽  
Author(s):  
Min-Young Cho ◽  
Mok-Hwa Kim ◽  
Hyun-Kyung Kim ◽  
Kwang-Bum Kim ◽  
Jung Rag Yoon ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Electrochemical Performance ◽  
Hybrid Supercapacitor

Influence of KOH followed by oxidation pretreatment on the electrochemical performance of phenolic based activated carbon fibers

2007 ◽  
Vol 611 (1-2) ◽  
pp. 225-231 ◽  
Author(s):  
Chun-Ling Liu ◽  
Wen-Sheng Dong ◽  
Gao-Ping Cao ◽  
Jing-Ren Song ◽  
Lang Liu ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Electrochemical Performance ◽  
Carbon Fibers ◽  
Activated Carbon Fibers
Sign in / Sign up

Export Citation Format

Share Document