Effect of mixed anions on the physicochemical properties of a sodium containing alkoxyammonium ionic liquid electrolyte

2017 ◽  
Vol 19 (26) ◽  
pp. 17461-17468 ◽  
Author(s):  
Matthias Hilder ◽  
Matthieu Gras ◽  
Cameron R. Pope ◽  
Mega Kar ◽  
Douglas R. MacFarlane ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Physicochemical Properties ◽  
Liquid Electrolyte ◽  
Ion Dynamics ◽  
Ionic Liquid Electrolyte ◽  
Beneficial Effects ◽  
Anionic Species

We study the beneficial effects of multiple anionic species on the ion dynamics in a sodium-containing ionic liquid electrolyte.

scholarly journals Inside Cover: Ion Dynamics in a Mixed-Cation Alkoxy-Ammonium Ionic Liquid Electrolyte for Sodium Device Applications (ChemPhysChem 20/2016)

ChemPhysChem ◽  
2016 ◽  
Vol 17 (20) ◽  
pp. 3149-3149
Author(s):  
Cameron R. Pope ◽  
Mega Kar ◽  
Douglas R. MacFarlane ◽  
Michel Armand ◽  
Maria Forsyth ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Liquid Electrolyte ◽  
Ion Dynamics ◽  
Ionic Liquid Electrolyte ◽  
Mixed Cation ◽  
Device Applications

scholarly journals Ion Dynamics in a Mixed-Cation Alkoxy-Ammonium Ionic Liquid Electrolyte for Sodium Device Applications

ChemPhysChem ◽  
2016 ◽  
Vol 17 (20) ◽  
pp. 3187-3195 ◽  
Author(s):  
Cameron R. Pope ◽  
Mega Kar ◽  
Douglas R. MacFarlane ◽  
Michel Armand ◽  
Maria Forsyth ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Liquid Electrolyte ◽  
Ion Dynamics ◽  
Ionic Liquid Electrolyte ◽  
Mixed Cation ◽  
Device Applications

Enhanced Ion Transport in an Ether Aided Super Concentrated Ionic Liquid Electrolyte for Long-Life Practical Lithium Metal Battery Applications

2020 ◽  
Author(s):  
Urbi Pal ◽  
Fangfang Chen ◽  
Derick Gyabang ◽  
Thushan Pathirana ◽  
Binayak Roy ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ion Transport ◽  
Current Density ◽  
Coulombic Efficiency ◽  
High Energy ◽  
Liquid Electrolyte ◽  
High Mass ◽  
Lithium Metal ◽  
Ionic Liquid Electrolyte ◽  
Lithium Metal Battery

We explore a novel ether aided superconcentrated ionic liquid electrolyte; a combination of ionic liquid, <i>N</i>-propyl-<i>N</i>-methylpyrrolidinium bis(fluorosulfonyl)imide (C<sub>3</sub>mpyrFSI) and ether solvent, <i>1,2</i> dimethoxy ethane (DME) with 3.2 mol/kg LiFSI salt, which offers an alternative ion-transport mechanism and improves the overall fluidity of the electrolyte. The molecular dynamics (MD) study reveals that the coordination environment of lithium in the ether aided ionic liquid system offers a coexistence of both the ether DME and FSI anion simultaneously and the absence of ‘free’, uncoordinated DME solvent. These structures lead to very fast kinetics and improved current density for lithium deposition-dissolution processes. Hence the electrolyte is used in a lithium metal battery against a high mass loading (~12 mg/cm<sup>2</sup>) LFP cathode which was cycled at a relatively high current rate of 1mA/cm<sup>2</sup> for 350 cycles without capacity fading and offered an overall coulombic efficiency of >99.8 %. Additionally, the rate performance demonstrated that this electrolyte is capable of passing current density as high as 7mA/cm<sup>2</sup> without any electrolytic decomposition and offers a superior capacity retention. We have also demonstrated an ‘anode free’ LFP-Cu cell which was cycled over 50 cycles and achieved an average coulombic efficiency of 98.74%. The coordination chemistry and (electro)chemical understanding as well as the excellent cycling stability collectively leads toward a breakthrough in realizing the practical applicability of this ether aided ionic liquid electrolytes in lithium metal battery applications, while delivering high energy density in a prototype cell.

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

Surface modification of TiO2 by an ionic liquid electrolyte in dye-sensitized solar cells using a molecular insulator

RSC Advances ◽  
2015 ◽  
Vol 5 (43) ◽  
pp. 33855-33862 ◽  
Author(s):  
Molang Cai ◽  
Xu Pan ◽  
Weiqing Liu ◽  
John Bell ◽  
Songyuan Dai
Keyword(s):  
Ionic Liquid ◽  
Surface Modification ◽  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Liquid Electrolyte ◽  
Electron Recombination ◽  
Ionic Liquid Electrolyte ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

DMImBS is used as a novel additive in dye-sensitized solar cells to restrain the electron recombination and intercalation of Li+.

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