scholarly journals Beyond Activated Carbon: Graphite‐Cathode‐Derived Li‐Ion Pseudocapacitors with High Energy and High Power Densities

2019 ◽  
Vol 31 (14) ◽  
pp. 1807712 ◽  
Author(s):  
Gang Wang ◽  
Steffen Oswald ◽  
Markus Löffler ◽  
Klaus Müllen ◽  
Xinliang Feng
Keyword(s):  
Activated Carbon ◽  
High Power ◽  
High Energy ◽  
Graphite Cathode ◽  
Li Ion ◽  
Power Densities

Unveiling two-dimensional TiS2 as an insertion host for the construction of high energy Li-ion capacitors

2017 ◽  
Vol 5 (19) ◽  
pp. 9177-9181 ◽  
Author(s):  
Apoorva Chaturvedi ◽  
Peng Hu ◽  
Vanchiappan Aravindan ◽  
Christian Kloc ◽  
Srinivasan Madhavi
Keyword(s):  
Activated Carbon ◽  
High Power ◽  
High Energy ◽  
Two Dimensional ◽  
Li Ion ◽  
First Time

Herein, we report, for the first time, the possibility of using TiS2 as an insertion host for the fabrication of high energy and high power Li-ion capacitors with commercial activated carbon.

Potassium Pre-Inserted K1.04Mn8O16 Cathode Materials for Aqueous Li-Ion and Na-Ion Hybrid Capacitors

2019 ◽  
Author(s):  
Yamin Zhang ◽  
Lina Chen ◽  
Chongyang Hao ◽  
Xiaowen Zheng ◽  
Yixuan Guo ◽  
...  
Keyword(s):  
Cycling Performance ◽  
High Energy ◽  
High Energy Density ◽  
Potassium Ions ◽  
Tunnel Structure ◽  
Hybrid Supercapacitor ◽  
Hybrid Supercapacitors ◽  
Li Ion ◽  
Power Densities ◽  
Hybrid Capacitors

For the applications of aqueous Li-ion hybrid capacitors and Na-ion hybrid capacitors, potassium ions are pre-inserted into MnO<sub>2</sub> tunnel structure, the as-prepared K<sub>1.04</sub>Mn<sub>8</sub>O<sub>16</sub> materials consist of <a>nanoparticles</a> and nanorods were prepared by facile high-temperature solid-state reaction. <a></a>The as-prepared materials were well studied andthey show outstanding electrochemical behavior. We assembled hybrid supercapacitors with commercial activated carbon (YEC-8A) as anode and K<sub>1.04</sub>Mn<sub>8</sub>O<sub>16 </sub>as cathode. It has high energy densities and power densities. Li-ion capacitors reach a high energy density of 127.61 Wh kg<sup>-1 </sup>at the power density of 99.86 W kg<sup>-1</sup> and Na-ion capacitor obtains 170.96 Wh kg<sup>-1 </sup>at 133.79 W kg<sup>-1</sup>. In addition, the <a>hybrid supercapacitor</a>s demonstrate excellent cycling performance which maintain 97 % capacitance retention for Li-ion capacitor and 85 % for Na-ion capacitor after 10,000 cycles.

scholarly journals All nanocarbon Li-Ion capacitor with high energy and high power density

2018 ◽  
Vol 8 ◽  
pp. 109-117 ◽  
Author(s):  
Deepak P. Dubal ◽  
Pedro Gomez-Romero
Keyword(s):  
Power Density ◽  
High Power ◽  
High Energy ◽  
High Power Density ◽  
Li Ion

Realizing both High Energy and High Power Densities by Twisting Three Carbon-Nanotube-Based Hybrid Fibers

2015 ◽  
Vol 127 (38) ◽  
pp. 11329-11334 ◽  
Author(s):  
Ye Zhang ◽  
Yang Zhao ◽  
Xunliang Cheng ◽  
Wei Weng ◽  
Jing Ren ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
High Power ◽  
High Energy ◽  
Hybrid Fibers ◽  
Power Densities

High rate capability Li3V2¬xNix(PO4)3/C (x = 0, 0.05, and 0.1) cathodes for Li-ion asymmetric supercapacitors

2015 ◽  
Vol 3 (22) ◽  
pp. 11807-11816 ◽  
Author(s):  
Marco Secchiaroli ◽  
Gabriele Giuli ◽  
Bettina Fuchs ◽  
Roberto Marassi ◽  
Margret Wohlfahrt-Mehrens ◽  
...  
Keyword(s):  
Power Density ◽  
High Power ◽  
Rate Capability ◽  
High Energy ◽  
High Rate ◽  
High Power Density ◽  
Cycle Stability ◽  
High Rate Capability ◽  
Asymmetric Supercapacitors ◽  
Li Ion

Nanostructured Li3V2−xNix(PO4)3 (x = 0, 0.05, and 0.1) cathodes, thanks to their high rate capability and excellent cycle stability, are proposed as excellent candidates for the development of high energy and high power density Li-ion asymmetric supercapacitors.

A high-performance flexible and weavable asymmetric fiber-shaped solid-state supercapacitor enhanced by surface modifications of carbon fibers with carbon nanotubes

2016 ◽  
Vol 4 (46) ◽  
pp. 18164-18173 ◽  
Author(s):  
Xiaoyu Lu ◽  
Yang Bai ◽  
Ranran Wang ◽  
Jing Sun
Keyword(s):  
Carbon Nanotubes ◽  
Activated Carbon ◽  
Solid State ◽  
Carbon Fiber ◽  
Carbon Fibers ◽  
High Performance ◽  
Negative Electrode ◽  
Surface Modifications ◽  
High Energy ◽  
Power Densities

A carbon fiber-based positive electrode enhanced by CNT modification with NiCo(OH)x and a negative electrode functionalized with activated carbon were prepared. The supercapacitor showed high energy and power densities.

scholarly journals Carbon-coated fluorinated graphite for high energy and high power densities primary lithium batteries

2010 ◽  
Vol 195 (9) ◽  
pp. 2914-2917 ◽  
Author(s):  
Q. Zhang ◽  
S. D’Astorg ◽  
P. Xiao ◽  
X. Zhang ◽  
L. Lu
Keyword(s):  
High Power ◽  
Lithium Batteries ◽  
High Energy ◽  
Fluorinated Graphite ◽  
Carbon Coated ◽  
Power Densities
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