Tailoring the pore structure of carbon nanofibers for achieving ultrahigh-energy-density supercapacitors using ionic liquids as electrolytes

2016 ◽  
Vol 4 (13) ◽  
pp. 4763-4770 ◽  
Author(s):  
Chang Hyo Kim ◽  
Jae-Hyung Wee ◽  
Yoong Ahm Kim ◽  
Kap Seung Yang ◽  
Cheol-Min Yang
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Energy Density ◽  
Pore Structure ◽  
Carbon Nanofibers ◽  
High Energy ◽  
High Energy Density ◽  
Ultra High Energy ◽  
Ultrahigh Energy ◽  
Carbon Based

Carbon based supercapacitor with ultra-high energy density was developed by using pore structure tailored carbon nanofibers and ionic liquid.

A surface-modified TiO2 nanorod array/P(VDF–HFP) dielectric capacitor with ultra high energy density and efficiency

2017 ◽  
Vol 5 (48) ◽  
pp. 12777-12784 ◽  
Author(s):  
Shudi Liao ◽  
Zhonghui Shen ◽  
Hao Pan ◽  
Xin Zhang ◽  
Yang Shen ◽  
...  
Keyword(s):  
Energy Density ◽  
Nanorod Array ◽  
High Energy ◽  
High Energy Density ◽  
Ultra High Energy ◽  
Ultrahigh Energy ◽  
Tio2 Nanorod ◽  
Tio2 Nanorod Array ◽  
Surface Modified

A surface-modified TiO2 nanorod array/P(VDF–HFP) dielectric capacitor has an ultrahigh energy density of 17.5 J cm−3 at 509 kV mm−1.

A quasi-solid-state Li-ion capacitor with high energy density based on Li3VO4/carbon nanofibers and electrochemically-exfoliated graphene sheets

2017 ◽  
Vol 5 (28) ◽  
pp. 14922-14929 ◽  
Author(s):  
Faxing Wang ◽  
Zaichun Liu ◽  
Xinhai Yuan ◽  
Jun Mo ◽  
Chunyang Li ◽  
...  
Keyword(s):  
Solid State ◽  
Energy Density ◽  
Carbon Nanofibers ◽  
High Energy ◽  
High Energy Density ◽  
Graphene Sheets ◽  
Ultrahigh Energy ◽  
Exfoliated Graphene ◽  
Li Ion ◽  
Charge Discharge

The quasi-solid-state Li-ion capacitor demonstrates an ultrahigh energy density of 110 W h kg−1and rapid charge/discharge capability within 2 min.

High energy density supercapacitor based on N/B co-doped graphene nanoarchitectures and ionic liquid electrolyte

Ionics ◽  
2019 ◽  
Vol 25 (9) ◽  
pp. 4351-4360 ◽  
Author(s):  
Zhongliang Yu ◽  
Jiahe Zhang ◽  
Chunxian Xing ◽  
Lei Hu ◽  
Lili Wang ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Energy Density ◽  
High Energy ◽  
Liquid Electrolyte ◽  
High Energy Density ◽  
Ionic Liquid Electrolyte ◽  
Doped Graphene ◽  
Co Doped

Highly Oriented Graphene Sponge Electrode for Ultra High Energy Density Lithium Ion Hybrid Capacitors

2016 ◽  
Vol 8 (38) ◽  
pp. 25297-25305 ◽  
Author(s):  
Wook Ahn ◽  
Dong Un Lee ◽  
Ge Li ◽  
Kun Feng ◽  
Xiaolei Wang ◽  
...  
Keyword(s):  
Energy Density ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Ultra High Energy ◽  
Graphene Sponge ◽  
Hybrid Capacitors

Ultrahigh-energy sodium ion capacitors enabled by the enhanced intercalation pseudocapacitance of self-standing Ti2Nb2O9/CNF anodes

Nanoscale ◽  
2021 ◽  
Vol 13 (37) ◽  
pp. 15781-15788
Author(s):  
Liaona She ◽  
Feng Zhang ◽  
Congying Jia ◽  
Liping Kang ◽  
Qi Li ◽  
...  
Keyword(s):  
Energy Density ◽  
High Energy ◽  
Sodium Ion ◽  
High Energy Density ◽  
Ultrahigh Energy ◽  
Storage Performance ◽  
Sodium Storage

Ti2Nb2O9/CNF anode with excellent sodium storage performance is fabricated by electrospinning and carbonization treatment. The assembled Ti2Nb2O9/CNF//AC SIC exhibits a high energy density of 129 W h kg-1 at 75 W kg-1.

scholarly journals High Performance Graphene-Based Electrochemical Double Layer Capacitors Using 1-Butyl-1-methylpyrrolidinium tris (pentafluoroethyl) trifluorophosphate Ionic Liquid as an Electrolyte

Electronics ◽  
2018 ◽  
Vol 7 (10) ◽  
pp. 229 ◽  
Author(s):  
Jacob D. Huffstutler ◽  
Milinda Wasala ◽  
Julianna Richie ◽  
John Barron ◽  
Andrew Winchester ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Energy Density ◽  
Double Layer ◽  
Specific Energy ◽  
High Energy ◽  
High Energy Density ◽  
Electrochemical Double Layer Capacitors ◽  
Electrochemical Double Layer ◽  
High Specific Energy ◽  
Double Layer Capacitors

There are several advantages to developing electrochemical double-layer capacitors (EDLC) or supercapacitors with high specific energy densities, for example, these can be used in applications related to quality power generation, voltage stabilization, and frequency regulation. In this regard, ionic liquids capable of providing a higher voltage window of operations compared to an aqueous and/or polymer electrolyte can significantly enhance the specific energy densities of EDLCs. Here we demonstrate that EDLCs fabricated using ionic liquid 1-butyl-1-methylpyrrolidinium tris (pentafluoroethyl) trifluorophosphate (BMP-FAP) as an electrolyte and few layer liquid-phase exfoliated graphene as electrodes show remarkable performance compared to EDLC devices fabricated with aqueous potassium hydroxide (6M) as well as widely used ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate (BMIM-PF6). We found that graphene EDLC’s with BMP-FAP as an electrolyte possess a high specific energy density of ≈25 Wh/kg along with specific capacitance values as high as 200 F/g and having an operating voltage windows of >5 volts with a rapid charge transfer response. These findings strongly indicate the suitability of BMP-FAP as a good choice of electrolyte for high energy density EDLC devices.

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