Electrochemical behavior of NiCl2/Ni in acidic AlCl3-based ionic liquid electrolyte

2020 ◽  
Vol 7 (9) ◽  
pp. 1909-1917
Author(s):  
Jiguo Tu ◽  
Mingyin Kou ◽  
Mingyong Wang ◽  
Shuqiang Jiao
Keyword(s):  
Ionic Liquid ◽  
Mass Loss ◽  
Electrochemical Behavior ◽  
Degradation Mechanism ◽  
Liquid Electrolyte ◽  
Reduction Product ◽  
Ionic Liquid Electrolyte

The degradation mechanism of the Al-NiCl2 cell is confirmed to be mainly due to mass loss and electrode cracking caused by the dissolution of some Ni metal as the reduction product of NiCl2 during discharging in acidic AlCl3-based electrolyte.

Thermal influence on the electrochemical behavior of a supercapacitor containing an ionic liquid electrolyte

2018 ◽  
Vol 263 ◽  
pp. 249-260 ◽  
Author(s):  
Mazharul Haque ◽  
Qi Li ◽  
Anderson D. Smith ◽  
Volodymyr Kuzmenko ◽  
Elof Köhler ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Electrochemical Behavior ◽  
Liquid Electrolyte ◽  
Ionic Liquid Electrolyte ◽  
Thermal Influence

An intermediate temperature sodium copper chloride battery using ionic liquid electrolyte and its degradation mechanism

Ionics ◽  
2019 ◽  
Vol 25 (9) ◽  
pp. 4189-4196
Author(s):  
Congsu Niu ◽  
Yiwei Zhang ◽  
Shuai Ma ◽  
Yonghua Wan ◽  
Hui Yang ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Copper Chloride ◽  
Degradation Mechanism ◽  
Liquid Electrolyte ◽  
Intermediate Temperature ◽  
Ionic Liquid Electrolyte

Synthesis and electrochemical behavior of Li2CoSiO4 cathode with pyrrolidinium-based ionic liquid electrolyte for lithium ion batteries

Ionics ◽  
2014 ◽  
Vol 20 (7) ◽  
pp. 935-941 ◽  
Author(s):  
Savitha Thayumanasundaram ◽  
Vijay Shankar Rangasamy ◽  
Jin Won Seo ◽  
Jean-Pierre Locquet
Keyword(s):  
Ionic Liquid ◽  
Lithium Ion Batteries ◽  
Electrochemical Behavior ◽  
Lithium Ion ◽  
Liquid Electrolyte ◽  
Ionic Liquid Electrolyte

Correlating Electrochemical Behavior and Speciation in Neodymium Ionic Liquid Electrolyte Mixtures in the Presence of Water

2020 ◽  
Vol 8 (37) ◽  
pp. 14047-14057
Author(s):  
Laura Sanchez-Cupido ◽  
Jennifer M. Pringle ◽  
Amal I. Siriwardana ◽  
Matthias Hilder ◽  
Maria Forsyth ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Electrochemical Behavior ◽  
Liquid Electrolyte ◽  
Electrolyte Mixtures ◽  
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.

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