scholarly journals Advances in sodium secondary batteries utilizing ionic liquid electrolytes

2019 ◽  
Vol 12 (11) ◽  
pp. 3247-3287 ◽  
Author(s):  
Kazuhiko Matsumoto ◽  
Jinkwang Hwang ◽  
Shubham Kaushik ◽  
Chih-Yao Chen ◽  
Rika Hagiwara
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Electrochemical Performance ◽  
Electrode Materials ◽  
Liquid Electrolytes

This review summarizes the use of ionic liquids in Na secondary batteries and discusses their electrochemical performance with various electrode materials.

scholarly journals Controlled Nanostructuration of Cobalt Oxyhydroxide Electrode Material for Hybrid Supercapacitors

Materials ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2325
Author(s):  
Ronan Invernizzi ◽  
Liliane Guerlou-Demourgues ◽  
François Weill ◽  
Alexia Lemoine ◽  
Marie-Anne Dourges ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Energy Storage ◽  
Specific Surface ◽  
Electrode Materials ◽  
Specific Capacity ◽  
Hybrid Supercapacitors ◽  
Cobalt Oxyhydroxide ◽  
Precipitation Medium ◽  
The Impact

Nanostructuration is one of the most promising strategies to develop performant electrode materials for energy storage devices, such as hybrid supercapacitors. In this work, we studied the influence of precipitation medium and the use of a series of 1-alkyl-3-methylimidazolium bromide ionic liquids for the nanostructuration of β(III) cobalt oxyhydroxides. Then, the effect of the nanostructuration and the impact of the different ionic liquids used during synthesis were investigated in terms of energy storage performances. First, we demonstrated that forward precipitation, in a cobalt-rich medium, leads to smaller particles with higher specific surface areas (SSA) and an enhanced mesoporosity. Introduction of ionic liquids (ILs) in the precipitation medium further strongly increased the specific surface area and the mesoporosity to achieve well-nanostructured materials with a very high SSA of 265 m2/g and porosity of 0.43 cm3/g. Additionally, we showed that ILs used as surfactant and template also functionalize the nanomaterial surface, leading to a beneficial synergy between the highly ionic conductive IL and the cobalt oxyhydroxide, which lowers the resistance charge transfer and improves the specific capacity. The nature of the ionic liquid had an important influence on the final electrochemical properties and the best performances were reached with the ionic liquid containing the longest alkyl chain.

scholarly journals Investigation on the Mass Distribution and Chemical Compositions of Various Ionic Liquids-Extracted Coal Fragments and Their Effects on the Electrochemical Performance of Coal-Derived Carbon Nanofibers (CCNFs)

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 664
Author(s):  
Shuai Tan ◽  
Theodore John Kraus ◽  
Mitchell Ross Helling ◽  
Rudolph Kurtzer Mignon ◽  
Franco Basile ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Electrochemical Performance ◽  
Carbon Nanofibers ◽  
Mass Distribution ◽  
Electrode Materials ◽  
Gas Chromatography Mass Spectrometry ◽  
Electrochemical Performances ◽  
Diffusion Resistance ◽  
Chemical Compositions ◽  
Holistic Understanding

Coal-derived carbon nanofibers (CCNFs) have been recently found to be a promising and low-cost electrode material for high-performance supercapacitors. However, the knowledge gap still exists between holistic understanding of coal precursors derived from different solvents and resulting CCNFs’ properties, prohibiting further optimization of their electrochemical performance. In this paper, assisted by laser desorption/ionization (LDI) and gas chromatography–mass spectrometry (GC–MS) technologies, a systematic study was performed to holistically characterize mass distribution and chemical composition of coal precursors derived from various ionic liquids (ILs) as extractants. Sequentially, X-ray photoelectron spectroscopy (XPS) revealed that the differences in chemical properties of various coal products significantly affected the surface oxygen concentrations and certain species distributions on the CCNFs, which, in turn, determined the electrochemical performances of CCNFs as electrode materials. We report that the CCNF that was produced by an oxygen-rich coal fragment from C6mimCl ionic liquid extraction showed the highest concentrations of quinone and ester groups on the surface. Consequentially, C6mimCl-CCNF achieved the highest specific capacitance and lowest ion diffusion resistance. Finally, a symmetric carbon/carbon supercapacitor fabricated with such CCNF as electrode delivered an energy density of 21.1 Wh/kg at the power density of 0.6 kW/kg, which is comparable to commercial active carbon supercapacitors.

scholarly journals Rechargeable aluminum batteries: effects of cations in ionic liquid electrolytes

RSC Advances ◽  
2019 ◽  
Vol 9 (20) ◽  
pp. 11322-11330 ◽  
Author(s):  
Guanzhou Zhu ◽  
Michael Angell ◽  
Chun-Jern Pan ◽  
Meng-Chang Lin ◽  
Hui Chen ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Room Temperature ◽  
Solvent Free ◽  
Room Temperature Ionic Liquids ◽  
Liquid Electrolytes

Room temperature ionic liquids (RTILs) are solvent-free liquids comprised of densely packed cations and anions. Properties of Py13Cl–AlCl3 ILs were studied and compared with EMIC-AlCl3 ILs for use as electrolyte in Al–graphite battery.

Electrochemical performance of Na/NaFePO4 sodium-ion batteries with ionic liquid electrolytes

2014 ◽  
Vol 2 (16) ◽  
pp. 5655 ◽  
Author(s):  
Nithinai Wongittharom ◽  
Tai-Chou Lee ◽  
Chueh-Han Wang ◽  
Yi-Chen Wang ◽  
Jeng-Kuei Chang
Keyword(s):  
Ionic Liquid ◽  
Electrochemical Performance ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Liquid Electrolytes

The influence of ionic liquid additives on zinc half-cell electrochemical performance in zinc/bromine flow batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (33) ◽  
pp. 27788-27797 ◽  
Author(s):  
Gobinath P. Rajarathnam ◽  
Max E. Easton ◽  
Martin Schneider ◽  
Anthony F. Masters ◽  
Thomas Maschmeyer ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Electrochemical Performance ◽  
Half Cell ◽  
Redox Flow Batteries ◽  
Flow Batteries

Six ionic liquids were assessed for their suitability as alternative bromine-sequestering agents (BSAs) in zinc/bromine redox flow batteries (Zn/Br RFBs)viacomparison against conventional BSA, 1-ethyl-1-methylpyrrolidinium bromide ([C2MPyrr]Br).

scholarly journals Valorization of lignin waste: high electrochemical capacitance of lignin-derived carbons in aqueous and ionic liquid electrolytes

2018 ◽  
Vol 6 (38) ◽  
pp. 18701-18711 ◽  
Author(s):  
Wantana Sangchoom ◽  
Darren A. Walsh ◽  
Robert Mokaya
Keyword(s):  
Ionic Liquid ◽  
Energy Density ◽  
Power Density ◽  
High Power ◽  
Electric Double Layer ◽  
Electrode Materials ◽  
High Energy ◽  
Electrochemical Capacitance ◽  
Liquid Electrolytes ◽  
Double Layer Capacitors

Valorisation of waste lignin generates porous carbons with attractive properties as high-energy/high-power electrode materials for electric double layer capacitors (EDLCs), achieving an energy density of 25 W h kg−1at a power density of 500 W kg−1in ionic liquid electrolytes.

Electrochemical performance of 0.5Li2MnO3–0.5Li(Mn0.375Ni0.375Co0.25)O2 composite cathode in pyrrolidinium-based ionic liquid electrolytes

2015 ◽  
Vol 294 ◽  
pp. 22-30 ◽  
Author(s):  
Jagabandhu Patra ◽  
Prem Prakash Dahiya ◽  
Chung-Jen Tseng ◽  
Jason Fang ◽  
Yu-Wei Lin ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Electrochemical Performance ◽  
Composite Cathode ◽  
Liquid Electrolytes

Pyridinium-clubbed dicationic ionic liquid electrolytes for efficient next-generation photo harvesting

2018 ◽  
Vol 42 (9) ◽  
pp. 6990-6996 ◽  
Author(s):  
Abhishek Dhar ◽  
Nadavala Siva Kumar ◽  
Mohammad Asif ◽  
Rohit L. Vekariya
Keyword(s):  
Thermal Stability ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
Ionic Conductivity ◽  
Next Generation ◽  
Photovoltaic Devices ◽  
Excellent Thermal Stability ◽  
Liquid Electrolytes ◽  
Dicationic Ionic Liquid ◽  
Dicationic Ionic Liquids

A new series of pyridinium based dicationic ionic liquids was designed and synthesized. The synthesized ionic liquids have excellent thermal stability and good ionic conductivity. They can be used as electrolytes in photovoltaic devices.

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