Activated Carbon as Electrode Materials for Supercapacitors

2020 ◽  
pp. 113-144
Author(s):  
Prerna Sinha ◽  
Soma Banerjee ◽  
Kamal K. Kar
Keyword(s):  
Activated Carbon ◽  
Electrode Materials

Preparation of Activated Carbon Derived from Water Hyacinth as Electrode Active Material for Li-Ion Supercapacitor

2020 ◽  
Vol 1000 ◽  
pp. 50-57
Author(s):  
Jagad Paduraksa ◽  
Muhammad Luthfi ◽  
Ariono Verdianto ◽  
Achmad Subhan ◽  
Wahyu Bambang Widayatno ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Water Hyacinth ◽  
Electrode Materials ◽  
Storage System ◽  
Active Material ◽  
Lithium Ion ◽  
High Energy ◽  
Specific Power ◽  
Full Cell ◽  
Lithium Ion Capacitor

Lithium-Ion Capacitor (LIC) has shown promising performance to meet the needs of high energy and power-density-energy storage system in the era of electric vehicles nowadays. The development of electrode materials and electrolytes in recent years has improvised LIC performance significantly. One of the active materials of LIC electrodes, activated carbon (AC), can be synthesized from various biomass, one of which is the water hyacinth. Its abundant availability and low utilization make the water hyacinth as a promising activated carbon source. To observe the most optimal physical properties of AC, this study also compares various activation temperatures. In this study, full cell LIC was fabricated using LTO based anode, and water hyacinth derived AC as the cathode. The LIC full cell was further characterized to see the material properties and electrochemical performance. Water hyacinth derived LIC can achieve a specific capacitance of 32.11 F/g, the specific energy of 17.83 Wh/kg, and a specific power of 160.53 W/kg.

Porous Activity of Biomass-Activated Carbon Enhanced by Nitrogen-Dopant Towards High-Performance Lithium Ion Hybrid Battery-Supercapacitor

2021 ◽  
Author(s):  
Juan Yu ◽  
Xuyang Wang ◽  
Jiaxin Peng ◽  
Xuefeng Jia ◽  
Linbo Li ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Energy Storage ◽  
Pore Structure ◽  
High Performance ◽  
Electrode Materials ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Utilization Efficiency ◽  
Energy Storage Devices ◽  
Storage Devices

Abstract Biomass-activated carbon materials are promising electrode materials for lithium-ion hybrid capacitors (LiCs) because of their natural hierarchical pore structure. The efficient utilization of structural pores in activated carbon is very important for their electrochemical performance. Herein, porous biomass-activated carbon (PAC) with large specific surface area was prepared using a one-step activation method with biomass waste as the carbon source and ZnCl2 as the activator. To further improve its pore structure utilization efficiency, the PAC was doped with nitrogen using urea as the nitrogen source. The experimental results confirmed that PAC-1 with a high nitrogen doping level of 4.66% exhibited the most efficient pore utilization among all the samples investigated in this study. PAC-1 exhibited 92% capacity retention after 8000 cycles, showing good cycling stability. Then, to maximize the utilization of high-efficiency energy storage devices, LiNi0.8Co0.15Al0.05O2 (NCA), a promising cathode material for lithium-ion batteries with high specific capacity, was compounded with PAC-1 in different ratios to obtain NCA@PC composites. The NCA@PC-9 composite exhibited excellent capacitance in LiCs and an energy density of 210.9 Wh kg-1 at a high power density of 13.3 kW kg-1. These results provide guidelines for the design of high-performance and low-cost energy storage devices.

Preparation and performance of carbon aerogel and activated carbon aerogel as electrode materials

2011 ◽  
Vol 23 (3) ◽  
pp. 671-674
Author(s):  
袁磊 Yuan Lei ◽  
袁秋月 Yuan Qiuyue ◽  
王朝阳 Wang Chaoyang ◽  
付志兵 Fu Zhibing ◽  
张厚琼 Zhang Houqiong ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Electrode Materials ◽  
Carbon Aerogel ◽  
And Performance

scholarly journals A Thin Layer of Activated Carbon Deposited on Polyurethane Cube Leads to New Conductive Bioanode for (Plant) Microbial Fuel Cell

Energies ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 574
Author(s):  
Emilius Sudirjo ◽  
Paola Y. Constantino Diaz ◽  
Matteo Cociancich ◽  
Rens Lisman ◽  
Christian Snik ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Activated Carbon ◽  
Field Test ◽  
Microbial Fuel Cells ◽  
Large Scale ◽  
Electrode Materials ◽  
Low Cost ◽  
Three Dimensional ◽  
Polyurethane Foams ◽  
Electrochemically Active

Large-scale implementation of (plant) microbial fuel cells is greatly limited by high electrode costs. In this work, the potential of exploiting electrochemically active self-assembled biofilms in fabricating three-dimensional bioelectrodes for (plant) microbial fuel cells with minimum use of electrode materials was studied. Three-dimensional robust bioanodes were successfully developed with inexpensive polyurethane foams (PU) and activated carbon (AC). The PU/AC electrode bases were fabricated via a water-based sorption of AC particles on the surface of the PU cubes. The electrical current was enhanced by growth of bacteria on the PU/AC bioanode while sole current collectors produced minor current. Growth and electrochemical activity of the biofilm were shown with SEM imaging and DNA sequencing of the microbial community. The electric conductivity of the PU/AC electrode enhanced over time during bioanode development. The maximum current and power density of an acetate fed MFC reached 3 mA·m−2 projected surface area of anode compartment and 22 mW·m−3 anode compartment. The field test of the Plant-MFC reached a maximum performance of 0.9 mW·m−2 plant growth area (PGA) at a current density of 5.6 mA·m−2 PGA. A paddy field test showed that the PU/AC electrode was suitable as an anode material in combination with a graphite felt cathode. Finally, this study offers insights on the role of electrochemically active biofilms as natural enhancers of the conductivity of electrodes and as transformers of inert low-cost electrode materials into living electron acceptors.

Study on Activated Carbon /Polyaniline Electrode Materials for Supercapacitorsts

2010 ◽  
Vol 97-101 ◽  
pp. 1582-1585 ◽  
Author(s):  
Yan Hong Tian ◽  
Bo Rong Wu ◽  
Ding Wen Mao
Keyword(s):  
Activated Carbon ◽  
Composite Electrode ◽  
Electrode Materials ◽  
Electrochemical Impedance ◽  
Reference Electrode ◽  
Bet Surface Area ◽  
Electrochemical Performances ◽  
Galvanostatic Charge ◽  
Composite Surface ◽  
Pani Composite

Activated carbon (AC)/polyaniline (PANI) composite electrode materials were synthesized in this article. The effect of preparation such as BET surface area and porous size of AC on the electrochemical performances of AC/PANI composite material was investigated. The electrochemical performances of the composite were tested with cyclic voltammetry, galvanostatic charge-discharge and electrochemical impedance spectrometry in 6mol/L KOH solution using Hg/HgO as reference electrode. Composite surface morphology was examined by scanning electron microscope (SEM). The result shows that when the ratio of AC to aniline increases, the conversion of aniline and the capacitance value of composite also increase in keeping the ratio of AC to aniline constant. When AC: aniline : (NH4)2S2O8 =7:1:1, the conversion of aniline up to more than 95% and the capacitance value of electrode materials increased from 239F/g(pure AC) to 409F/g, which is 71.1% higher than pure AC. Pore structure of AC also has great effect on electrochemical performances of electrode material. With the increase of proportion of mesoporous, the electrochemical properties of composite are greatly increased.

Hydrothermal activated carbon cloth as electrode materials for symmetric supercapacitors

Ionics ◽  
2019 ◽  
Vol 26 (3) ◽  
pp. 1457-1464
Author(s):  
Xiang Lv ◽  
Wanxia Huang ◽  
Qiwu Shi ◽  
Lu Tang ◽  
Dengmei Zhou
Keyword(s):  
Activated Carbon ◽  
Electrode Materials ◽  
Carbon Cloth ◽  
Activated Carbon Cloth

Sulphur-doped banana peel-derived activated carbon as electrode materials for supercapacitors

2019 ◽  
Vol 15 (1/2) ◽  
pp. 181 ◽  
Author(s):  
Hui Chen ◽  
Zhuangzhi Zhao ◽  
Peirong Qi ◽  
Gang Wang ◽  
Lei Shi ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Electrode Materials ◽  
Banana Peel
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