High surface area and oxygen-enriched activated carbon synthesized from animal cellulose and evaluated in electric double-layer capacitors

RSC Advances ◽  
2015 ◽  
Vol 5 (40) ◽  
pp. 31375-31383 ◽  
Author(s):  
Yuan Gao ◽  
Qinyan Yue ◽  
Baoyu Gao
Keyword(s):  
Activated Carbon ◽  
Surface Area ◽  
Double Layer ◽  
Electric Double Layer ◽  
Activated Carbons ◽  
High Surface ◽  
High Surface Area ◽  
Crab Shell ◽  
Double Layer Capacitors ◽  
Electric Double Layer Capacitors

Mechanism diagram for the synthesis of activated carbons from crab shell wastes.

Performance of Capacitors Using Organic Electrolytes

1999 ◽  
Vol 575 ◽  
Author(s):  
T. Morimoto ◽  
M. Tsushima ◽  
Y. Che
Keyword(s):  
Activated Carbon ◽  
Energy Density ◽  
Power Density ◽  
Double Layer ◽  
Electric Double Layer ◽  
High Surface ◽  
High Surface Area ◽  
Long Cycle Life ◽  
Double Layer Capacitors ◽  
Electric Double Layer Capacitors

ABSTRACTElectric double-layer capacitors(EDLC) based on charge storage at the interface between a high surface area activated carbon electrode and an electrolyte solution are characterized by their long cycle life and high power density in comparison with batteries. However, energy density of electric double-layer capacitors obtained at present is at most 1Wh/kg at a power density of 600W/kg and smaller compared with that of batteries, which limits the applications of the capacitor. Therefore, new capacitors which show larger energy density than that of electric-double layer capacitors are proposed. The new capacitors are hybrid capacitors consisting of activated carbon cathode, Li-doped graphite anode and an organic electrolyte. Maximum voltage applicable to the cell becomes over 4.OV which is larger than that of the electric double-layer capacitor. As a result, discharged energy density of the cell becomes 4Wh/kg at a power density of 600W/kg.

scholarly journals Insights into the influence of the pore size and surface area of activated carbons on the energy storage of electric double layer capacitors with a new potentially universally applicable capacitor model

2019 ◽  
Vol 21 (6) ◽  
pp. 3122-3133 ◽  
Author(s):  
Ruben Heimböckel ◽  
Frank Hoffmann ◽  
Michael Fröba
Keyword(s):  
Energy Storage ◽  
Pore Size ◽  
Surface Area ◽  
Double Layer ◽  
Electric Double Layer ◽  
Activated Carbons ◽  
Porous Carbons ◽  
Pore Sizes ◽  
Double Layer Capacitors ◽  
Electric Double Layer Capacitors

A new capacitor model that confirms the non-constant capacitive contribution of different pore sizes and provides the possibility of simulating the capacitance values of porous carbons.

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