High energy density PbO2/activated carbon asymmetric electrochemical capacitor based on lead dioxide electrode with three-dimensional porous titanium substrate

2014 ◽  
Vol 39 (30) ◽  
pp. 17153-17161 ◽  
Author(s):  
Wenli Zhang ◽  
Haibo Lin ◽  
Haishen Kong ◽  
Haiyan Lu ◽  
Zhe Yang ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Energy Density ◽  
Lead Dioxide ◽  
Three Dimensional ◽  
Titanium Substrate ◽  
Electrochemical Capacitor ◽  
Porous Titanium ◽  
High Energy ◽  
High Energy Density ◽  
Lead Dioxide Electrode

Toward high energy-density and long cycling-lifespan lithium ion capacitors: a 3D carbon modified low-potential Li2TiSiO5 anode coupled with a lignin-derived activated carbon cathode

2019 ◽  
Vol 7 (14) ◽  
pp. 8234-8244 ◽  
Author(s):  
Liming Jin ◽  
Ruiqi Gong ◽  
Weichao Zhang ◽  
Yue Xiang ◽  
Junsheng Zheng ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Energy Density ◽  
Three Dimensional ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Carbon Cathode

A LIC consisting of a three-dimensional carbon modified LTSO (3DC@LTSO) anode and a lignin-derived activated carbon (LDAC) cathode is designed and fabricated.

Non-polymeric hybridization of a TEMPO derivative with activated carbon for high-energy-density aqueous electrochemical capacitor electrodes

2018 ◽  
Vol 2 (3) ◽  
pp. 558-565 ◽  
Author(s):  
Hiroyuki Itoi ◽  
Hideyuki Hasegawa ◽  
Hiroyuki Iwata ◽  
Yoshimi Ohzawa
Keyword(s):  
Activated Carbon ◽  
Energy Density ◽  
High Performance ◽  
Electrochemical Capacitor ◽  
High Energy ◽  
High Energy Density ◽  
High Dispersion

High-dispersion of a hydrophobic TEMPO derivative inside the pores of activated carbon provides high-performance aqueous electrochemical capacitor electrodes without polymerization.

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

A three-dimensional graphene framework-enabled high-performance stretchable asymmetric supercapacitor

2018 ◽  
Vol 6 (4) ◽  
pp. 1802-1808 ◽  
Author(s):  
Ke Li ◽  
Yanshan Huang ◽  
Jingjing Liu ◽  
Mansoor Sarfraz ◽  
Phillips O. Agboola ◽  
...  
Keyword(s):  
Energy Density ◽  
High Performance ◽  
Three Dimensional ◽  
High Energy ◽  
Cycling Stability ◽  
High Energy Density ◽  
Asymmetric Supercapacitor ◽  
Asymmetric Supercapacitors ◽  
Superior Cycling Stability

Three-dimensional graphene frameworks enable the development of stretchable asymmetric supercapacitors with a record high energy density of 77.8 W h kg−1, and also excellent stretchability and superior cycling stability.

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