Heteroatom Si Substituent Imidazolium-Based Ionic Liquid Electrolyte Boosts the Performance of Dendrite-Free Lithium Batteries

2019 ◽  
Vol 11 (12) ◽  
pp. 12154-12160 ◽  
Author(s):  
Nan Chen ◽  
Yibiao Guan ◽  
Jinran Shen ◽  
Cui Guo ◽  
Wenjie Qu ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Lithium Batteries ◽  
Liquid Electrolyte ◽  
Ionic Liquid Electrolyte

Polyterthiophene/CNT composite as a cathode material for lithium batteries employing an ionic liquid electrolyte

2009 ◽  
Vol 54 (27) ◽  
pp. 6844-6849 ◽  
Author(s):  
S.R. Sivakkumar ◽  
Patrick C. Howlett ◽  
Bjorn Winther-Jensen ◽  
Maria Forsyth ◽  
Douglas R. MacFarlane
Keyword(s):  
Ionic Liquid ◽  
Cathode Material ◽  
Lithium Batteries ◽  
Liquid Electrolyte ◽  
Ionic Liquid Electrolyte

scholarly journals Limiting Current Density in Ionic Liquid Electrolyte for Lithium Batteries

2010 ◽  
Vol 78 (5) ◽  
pp. 349-352 ◽  
Author(s):  
Naoki TACHIKAWA ◽  
Jun-Woo PARK ◽  
Kazuki YOSHIDA ◽  
Takashi TAMURA ◽  
Kaoru DOKKO ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Current Density ◽  
Lithium Batteries ◽  
Liquid Electrolyte ◽  
Limiting Current ◽  
Ionic Liquid Electrolyte ◽  
Limiting Current Density

An imidazolium based ionic liquid electrolyte for lithium batteries

2010 ◽  
Vol 195 (22) ◽  
pp. 7639-7643 ◽  
Author(s):  
Jae-Kwang Kim ◽  
Aleksandar Matic ◽  
Jou-Hyeon Ahn ◽  
Per Jacobsson
Keyword(s):  
Ionic Liquid ◽  
Lithium Batteries ◽  
Liquid Electrolyte ◽  
Ionic Liquid Electrolyte

LiTFSI-BEPyTFSI as an improved ionic liquid electrolyte for rechargeable lithium batteries

2007 ◽  
Vol 174 (1) ◽  
pp. 342-348 ◽  
Author(s):  
A. Fernicola ◽  
F. Croce ◽  
B. Scrosati ◽  
T. Watanabe ◽  
H. Ohno
Keyword(s):  
Ionic Liquid ◽  
Lithium Batteries ◽  
Liquid Electrolyte ◽  
Rechargeable Lithium Batteries ◽  
Ionic Liquid Electrolyte

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.

Sign in / Sign up

Export Citation Format

Share Document