scholarly journals Additional Materials Effect for Improved Electrochemical Performance of Activated Carbon Fiber Based Electric Double Layer Capacitors

2015 ◽  
Vol 27 (6) ◽  
pp. 2260-2266 ◽  
Author(s):  
Kefayat Ullah ◽  
Shu Ye ◽  
Lei Zhu ◽  
Sang-Gil Kim ◽  
Byung-Jun Lee ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Carbon Fiber ◽  
Electrochemical Performance ◽  
Double Layer ◽  
Electric Double Layer ◽  
Activated Carbon Fiber ◽  
Double Layer Capacitors ◽  
Electric Double Layer Capacitors

scholarly journals Utilization of Activated Carbon Fiber with Mesopore Structure for Electric Double Layer Capacitors

2001 ◽  
Vol 69 (6) ◽  
pp. 462-466 ◽  
Author(s):  
Masayuki MORITA ◽  
Shin WATANABE ◽  
Masashi ISHIKAWA ◽  
Hisashi TAMAI ◽  
Hajime YASUDA
Keyword(s):  
Activated Carbon ◽  
Carbon Fiber ◽  
Double Layer ◽  
Electric Double Layer ◽  
Activated Carbon Fiber ◽  
Mesopore Structure ◽  
Double Layer Capacitors ◽  
Electric Double Layer Capacitors

scholarly journals Preparation of kraft lignin-based activated carbon fiber electrodes for electric double layer capacitors using an ionic liquid electrolyte

Holzforschung ◽  
2020 ◽  
Vol 74 (6) ◽  
pp. 577-588 ◽  
Author(s):  
Nutthira Pakkang ◽  
Manish Kumar ◽  
Shogo Taira ◽  
Keiichi Koda ◽  
Kengo Shigetomi ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Activated Carbon ◽  
Carbon Fiber ◽  
Electrochemical Performance ◽  
Double Layer ◽  
Electric Double Layer ◽  
Kraft Lignin ◽  
Activated Carbon Fiber ◽  
Carbon Fiber Electrodes ◽  
Double Layer Capacitors

AbstractThis article demonstrates the development of activated carbon fiber electrodes produced from hardwood kraft lignin (HKL) to fabricate electric double layer capacitors (EDLCs) with high energy and power densities using an ionic liquid (IL) electrolyte. A mixture solution of HKL, polyethylene glycol as a sacrificial polymer, and hexamethylenetetramine as a crosslinker in dimethylformamide/acetic acid (6/4) was electrospun, and the obtained fibers were easily thermostabilized, followed by carbonization and steam activation to yield activated carbon fibers (ACFs). The electrochemical performance of EDLCs assembled with the ACFs, 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIBF4) as an IL electrolyte and a cellulosic separator was insufficient due to the low conductivity of the electrode. The conductivity of the electrode was improved successfully by spraying conductive carbon black (CB) onto the fibers mat during electrospinning. The CB containing electrodes with improved conductivity gave the resulting EDLCs a higher electrochemical performance, with an energy density of 91.5 Wh kg−1 and a power density of 76.2 kW kg−1.

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