DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Electric field induced associations in the double layer of salt-in-ionic-liquid electrolytes

Journal Article · · Faraday Discussions
DOI: https://doi.org/10.1039/D4FD00021H · OSTI ID:2437763
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [1]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [5]; ORCiD logo [6]
  1. Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
  2. John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA, Department of Materials, Imperial College London, South Kensington Campus, London SW7 2AZ, UK
  3. Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA, Omenn-Darling Bioengineering Institute, Princeton University, Princeton, New Jersey 08544, USA
  4. Department of Civil and Environmental Engineering, University of Illinois at Urbana – Champaign, Urbana, IL, 61801, USA
  5. Department of Civil and Environmental Engineering, University of Illinois at Urbana – Champaign, Urbana, IL, 61801, USA, Department of Materials Science and Engineering, University of Illinois at Urbana – Champaign, Urbana, IL, 61801, USA
  6. Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA, Department of Mathematics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA

We have developed a theory for the electrical double layer of salt-in-ionic liquids accounting for the thermoreversible association of ions into Cayley tree aggregates. We find that the solution becomes more aggregated at moderate positive voltages.

Sponsoring Organization:
USDOE
Grant/Contract Number:
SC0019112
OSTI ID:
2437763
Journal Information:
Faraday Discussions, Journal Name: Faraday Discussions Vol. 253; ISSN 1359-6640; ISSN FDISE6
Publisher:
Royal Society of Chemistry (RSC)Copyright Statement
Country of Publication:
United Kingdom
Language:
English

References (89)

Insight into the Electrical Double Layer of Ionic Liquids Revealed through Its Temporal Evolution journal November 2020
Ionic Liquids and Organic Ionic Plastic Crystals: Advanced Electrolytes for Safer High Performance Sodium Energy Storage Technologies journal May 2018
Anion Selection Criteria for Water‐in‐Salt Electrolytes journal December 2020
Ionic Liquid in Li Salt Electrolyte: Modifying the Li + Transport Mechanism by Coordination to an Asymmetric Anion journal December 2020
Understanding Ionic Liquids at the Molecular Level: Facts, Problems, and Controversies journal January 2008
Continuum molecular electrostatics, salt effects, and counterion binding—A review of the Poisson–Boltzmann theory and its modifications journal January 2008
Enforced Freedom: Electric‐Field‐Induced Declustering of Ionic‐Liquid Ions in the Electrical Double Layer journal August 2020
Molecular distribution in condensation polymers journal July 1952
Fluids with highly directional attractive forces. I. Statistical thermodynamics journal April 1984
Fluids with highly directional attractive forces. II. Thermodynamic perturbation theory and integral equations journal April 1984
Fluids with highly directional attractive forces. III. Multiple attraction sites journal February 1986
Fluids with highly directional attractive forces. IV. Equilibrium polymerization journal February 1986
The general solution of the binding mean spherical approximation for pairing ions journal May 1995
Electrostatistics of counter-ions at and between planar charged walls: From Poisson-Boltzmann to the strong-coupling theory journal August 2001
Interaction of charged surfaces in electrolyte solutions journal June 1986
Thermoreversible gelation of associating polymers journal August 1998
Towards an understanding of induced-charge electrokinetics at large applied voltages in concentrated solutions journal November 2009
Ionic liquids for hybrid supercapacitors journal June 2004
Underscreening, overscreening and double-layer capacitance journal September 2017
Charge–discharge behavior of graphite negative electrodes in bis(fluorosulfonyl)imide-based ionic liquid and structural aspects of their electrode/electrolyte interfaces journal November 2013
Mean-Field Theory of Electrical Double Layer In Ionic Liquids with Account of Short-Range Correlations journal January 2017
Theory of coupled ion-electron transfer kinetics journal January 2021
Cracking Ion Pairs in the Electrical Double Layer of Ionic Liquids journal December 2022
On the temperature dependence of the double layer capacitance of ionic liquids journal June 2018
Ionic liquids as electrolytes for Li-ion batteries—An overview of electrochemical studies journal December 2009
Ionic liquid based electrolytes for sodium-ion batteries: Na+ solvation and ionic conductivity journal January 2014
Transport anomalies emerging from strong correlation in ionic liquid electrolytes journal July 2019
Enhancing the performance of lithium oxygen batteries through combining redox mediating salts with a lithium protecting salt journal April 2021
Application of Ionic Liquids to Energy Storage and Conversion Materials and Devices journal January 2017
Chelation-Induced Reversal of Negative Cation Transference Number in Ionic Liquid Electrolytes journal March 2020
Correlated Ion Transport and the Gel Phase in Room Temperature Ionic Liquids journal March 2021
Salt-in-Ionic-Liquid Electrolytes: Ion Network Formation and Negative Effective Charges of Alkali Metal Cations journal December 2021
Molecular Dynamics Investigation of Correlations in Ion Transport in MeTFSI/EMIM–TFSI (Me = Li, Na) Electrolytes journal December 2019
Chelating Additives Reversing the Lithium Migration Direction in Ionic Liquid Electrolytes journal December 2020
Computational and Experimental Study of Li-Doped Ionic Liquids at Electrified Interfaces journal May 2016
The Electrostatic Screening Length in Concentrated Electrolytes Increases with Concentration journal May 2016
General Trend of a Negative Li Effective Charge in Ionic Liquid Electrolytes journal April 2019
Nanoheterogeneity of LiTFSI Solutions Transitions Close to a Surface and with Concentration journal February 2021
Theoretical Investigation of the Na + Transport Mechanism and the Performance of Ionic Liquid-Based Electrolytes in Sodium-Ion Batteries journal April 2021
Beyond Local Solvation Structure: Nanometric Aggregates in Battery Electrolytes and Their Effect on Electrolyte Properties journal December 2021
Phase Behavior of Ionic Liquid–LiX Mixtures: Pyrrolidinium Cations and TFSI Anions – Linking Structure to Transport Properties journal September 2011
Room-Temperature Ionic Liquids: Solvents for Synthesis and Catalysis. 2 journal May 2011
Ionic Liquids at Electrified Interfaces journal March 2014
Electrolytes and Interphases in Li-Ion Batteries and Beyond journal October 2014
Room-Temperature Ionic Liquids. Solvents for Synthesis and Catalysis journal August 1999
Supramolecular Regulation of Anions Enhances Conductivity and Transference Number of Lithium in Liquid Electrolytes journal July 2018
Double-Layer in Ionic Liquids:  Paradigm Change? journal May 2007
Computational and Experimental Investigation of Li-Doped Ionic Liquid Electrolytes: [pyr14][TFSI], [pyr13][FSI], and [EMIM][BF 4 ] journal September 2014
Ionic Solutions in the Binding Mean Spherical Approximation:  Thermodynamic Properties of Mixtures of Associating Electrolytes journal January 1999
Microslips to “Avalanches” in Confined, Molecular Layers of Ionic Liquids journal December 2013
Thermoreversible Gelation with Junctions of Variable Multiplicity journal July 1994
Theory of thermoreversible gelation journal April 1989
Thermodynamic theory of network-forming polymer solutions. 1 journal August 1990
Theoretical Study of the Postgel Regime in Thermoreversible Gelation journal June 1997
Thermoreversible Gelation with Two-Component Networks journal January 1999
Ionic liquids and their solid-state analogues as materials for energy generation and storage journal January 2016
Ionic-liquid materials for the electrochemical challenges of the future journal July 2009
Energy applications of ionic liquids journal January 2014
Direct determination of ionic transference numbers in ionic liquids by electrophoretic NMR journal January 2015
Elucidation of transport mechanism and enhanced alkali ion transference numbers in mixed alkali metal–organic ionic molten salts journal January 2016
Negative effective Li transference numbers in Li salt/ionic liquid mixtures: does Li drift in the “Wrong” direction? journal January 2018
Advances in sodium secondary batteries utilizing ionic liquid electrolytes journal January 2019
Unified quantum theory of electrochemical kinetics by coupled ion–electron transfer journal January 2023
The cluster theory for electrolyte solutions. Its extension and its limitations journal January 1990
Thermoreversible gelation of hydrated polymers journal January 1995
Thermodynamics of High Polymer Solutions journal January 1942
Theory of Molecular Size Distribution and Gel Formation in Branched‐Chain Polymers journal February 1943
Theory of Molecular Size Distribution and Gel Formation in Branched Polymers II. General Cross Linking journal April 1944
Self-assembly of patchy particles into polymer chains: A parameter-free comparison between Wertheim theory and Monte Carlo simulation journal May 2007
Electrical double layer forces. A Monte Carlo study journal March 1984
Theory of ion aggregation and gelation in super-concentrated electrolytes journal June 2020
Bayesian unsupervised learning reveals hidden structure in concentrated electrolytes journal April 2021
Underscreening and hidden ion structures in large scale simulations of concentrated electrolytes journal October 2021
Polar liquids at charged interfaces: A dipolar shell theory journal June 2022
Gelation, clustering, and crowding in the electrical double layer of ionic liquids journal September 2022
Ionic liquids behave as dilute electrolyte solutions journal May 2013
Long-range electrostatic screening in ionic liquids journal May 2015
Spatial variation of permittivity of an electrolyte solution in contact with a charged metal surface: a mini review journal May 2013
Theory of Cation Solvation and Ionic Association in Nonaqueous Solvent Mixtures journal March 2023
Screening length for finite-size ions in concentrated electrolytes journal October 2019
Charge oscillations in ionic liquids: A microscopic cluster model journal January 2020
Steric effects in the dynamics of electrolytes at large applied voltages. I. Double-layer charging journal February 2007
Double Layer in Ionic Liquids: Overscreening versus Crowding journal January 2011
Interfacial Layering in the Electric Double Layer of Ionic Liquids journal September 2020
Spin-glass charge ordering in ionic liquids journal May 2019
Modeling of emergent memory and voltage spiking in ionic transport through angstrom-scale slits journal August 2021
Ion Clusters and Networks in Water-in-Salt Electrolytes journal May 2021
Solvate Ionic Liquid Electrolyte for Li–S Batteries journal January 2013
Theoretical Study of Molecular Association and Thermoreversible Gelation in Polymers journal July 2002