scholarly journals Thermally-responsive, nonflammable phosphonium ionic liquid electrolytes for lithium metal batteries: operating at 100 degrees celsius

2015 ◽  
Vol 6 (11) ◽  
pp. 6601-6606 ◽  
Author(s):  
X. Lin ◽  
R. Kavian ◽  
Y. Lu ◽  
Q. Hu ◽  
Y. Shao-Horn ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Lithium Metal ◽  
Thermally Responsive ◽  
Lithium Metal Batteries ◽  
Liquid Electrolytes ◽  
Phosphonium Ionic Liquid ◽  
Lithium Metal Battery

Lithium metal battery cycling at 100 °C is enabled by thermally-responsive, nonflammable phosphonium ionic liquid electrolytes.

scholarly journals Nonfluorinated Ionic Liquid Electrolytes for Lithium Metal Batteries: Ionic Conduction, Electrochemistry, and Interphase Formation

2020 ◽  
pp. 2003521
Author(s):  
Niyousha Karimi ◽  
Maider Zarrabeitia ◽  
Alessandro Mariani ◽  
Daniele Gatti ◽  
Alberto Varzi ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Conduction ◽  
Lithium Metal ◽  
Lithium Metal Batteries ◽  
Liquid Electrolytes

scholarly journals Polymer‐in‐“Quasi‐Ionic Liquid” Electrolytes for High‐Voltage Lithium Metal Batteries

2019 ◽  
Vol 9 (41) ◽  
pp. 1902108 ◽  
Author(s):  
Haiping Wu ◽  
Yaobin Xu ◽  
Xiaodi Ren ◽  
Bin Liu ◽  
Mark H. Engelhard ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
High Voltage ◽  
Lithium Metal ◽  
Lithium Metal Batteries ◽  
Liquid Electrolytes

Safe, Stable Cycling of Lithium Metal Batteries with Low‐Viscosity, Fire‐Retardant Locally Concentrated Ionic Liquid Electrolytes

2020 ◽  
Vol 30 (35) ◽  
pp. 2003132 ◽  
Author(s):  
Sukhyung Lee ◽  
Kisung Park ◽  
Bonhyeop Koo ◽  
Changhun Park ◽  
Minchul Jang ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Fire Retardant ◽  
Lithium Metal ◽  
Low Viscosity ◽  
Lithium Metal Batteries ◽  
Liquid Electrolytes

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.

Chlorine doped Li1.3Al0.3Ti1.7(PO4)3 as an electrolyte for solid lithium metal batteries

2021 ◽  
Author(s):  
Shuyuan Li ◽  
Zhongyuan Huang ◽  
Yinguo Xiao ◽  
Chunwen Sun
Keyword(s):  
Solid State ◽  
Mechanical Strength ◽  
Lithium Metal ◽  
Existing Problems ◽  
Lithium Metal Batteries ◽  
Liquid Electrolytes ◽  
Solid State Electrolytes

Solid-state electrolytes (SSEs) are expected to replace liquid electrolytes in lithium metal batteries (LMBs) with good safety and mechanical strength. However, the existing problems of Li1.3Al0.3Ti1.7(PO4)3 (LATP) electrolyte like their...

High-performance polymeric ionic liquid–silica hybrid ionogel electrolytes for lithium metal batteries

2016 ◽  
Vol 4 (36) ◽  
pp. 13822-13829 ◽  
Author(s):  
Xiaowei Li ◽  
Sijian Li ◽  
Zhengxi Zhang ◽  
Jun Huang ◽  
Li Yang ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Solid State ◽  
High Performance ◽  
High Capacity ◽  
Electrochemical Stability ◽  
Rate Performance ◽  
Lithium Metal ◽  
Polymeric Ionic Liquid ◽  
Lithium Metal Batteries ◽  
Silica Hybrid

Hybrid ionogel electrolytes have high thermal and electrochemical stability, good ionic conductivity, and potential to suppress Li dendrite formation. Solid-state lithium metal batteries with hybrid electrolytes reveal high capacity and remarkable rate performance.

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