4.6 Article

Lithium transference in electrolytes with star-shaped multivalent anions measured by electrophoretic NMR

Related references

Note: Only part of the references are listed.
Article Chemistry, Multidisciplinary

Elucidating the Molecular Origins of the Transference Number in Battery Electrolytes Using Computer Simulations

Chao Fang et al.

Summary: The rate at which rechargeable batteries can be charged and discharged is determined by the selective transport of working ions through the electrolyte. Conductivity, a commonly used parameter, reflects the mobility of cations and anions. The transference number, which was introduced over a century ago, provides information about the relative rates of cation and anion transport and is affected by various correlations.

JACS AU (2023)

Article Chemistry, Multidisciplinary

Superionicity in Ionic-Liquid-Based Electrolytes Induced by Positive Ion-Ion Correlations

Pinchas Nuernberg et al.

Summary: By designing organic cations with a Li-coordinating chain, ion-ion correlations in concentrated ionic liquid electrolytes can be exploited to achieve positive Li+ ion mobilities. The novel concept not only corrects the anionic drift direction of Li in ionic liquids but also utilizes strong ion correlations in concentrated electrolytes for superionic transport.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2022)

Article Physics, Multidisciplinary

Electric-Field-Induced Spatially Dynamic Heterogeneity of Solvent Motion and Cation Transference in Electrolytes

David M. Halat et al.

Summary: The study found that electric fields primarily result in migration of charged species in electrolytic solutions, and different solvation motifs and concentrations can affect the cation transference number. At a certain concentration, the dynamic heterogeneity of solvent molecules is minimized and the transference number approaches zero.

PHYSICAL REVIEW LETTERS (2022)

Editorial Material Materials Science, Multidisciplinary

The Transference Number

Kevin W. Gao et al.

Summary: This perspective discusses the distinction between approximate and rigorous methods for measuring transference numbers and the importance of considering the reference frame used in the analysis. By comparing values obtained from different sources and discussing the relationship between salt concentration gradients and transference numbers, it helps to better understand the performance of electrochemical systems.

ENERGY & ENVIRONMENTAL MATERIALS (2022)

Article Chemistry, Physical

Polyhedral Oligomeric Silsesquioxane-Based Macroanions to Level Up the Li+ Transport Number of Electrolytes for Lithium Batteries

Thi Khanh Ly Nguyen et al.

Summary: This paper focuses on increasing the lithium transport number by synthesizing POSS-based macroanions and studying their properties in electrolytes. It is found that the size of macroanions has a significant impact on transport number, electrolyte viscosity, and tortuosity. The chemical affinity between the organic POSS shell and the solvent also affects the dissociation rate of Li+ ions.

CHEMISTRY OF MATERIALS (2022)

Article Chemistry, Physical

Efficacy of Stabilizing Calcium Battery Electrolytes through Salt-Directed Coordination Change

Nathan T. Hahn et al.

Summary: Achieving practical, high-energy-density calcium batteries requires controlling the stability of Ca2+ electrolytes during calcium metal cycling. In this work, the authors investigate the effectiveness of strongly coordinating Ca2+ cosalts in stabilizing TFSI-based electrolytes for calcium plating. The results indicate that the nature of the coordination interaction between Ca2+ and the cosalt anion is more important for determining stability than the population of TFSI- anions.

JOURNAL OF PHYSICAL CHEMISTRY C (2022)

Article Electrochemistry

Divergence of Velocity Fields in Electrochemical Systems

Nitash P. Balsara et al.

Summary: This paper discusses the development of concentration gradients in electrochemical systems and their modeling using concentrated solution theory. The main advancement is the derivation of an expression for the divergence of the solvent velocity, which is essential for solving the diffusion equation. The paper also introduces the required parameters for solving this equation.

JOURNAL OF THE ELECTROCHEMICAL SOCIETY (2022)

Article Chemistry, Physical

Complete characterization of a lithium battery electrolyte using a combination of electrophoretic NMR and electrochemical methods

Darby T. Hickson et al.

Summary: Improving the transport properties of electrolytes is crucial for the development of lithium-ion batteries. This study combines electrochemical methods and electrophoretic NMR to accurately determine the transport parameters of electrolytes, providing a robust approach for complete characterization of battery electrolytes.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2022)

Article Polymer Science

Ion Correlations and Their Impact on Transport in Polymer-Based Electrolytes

Kara D. Fong et al.

Summary: The development of next-generation polymer-based electrolytes for energy storage applications can benefit from a deeper understanding of transport phenomena using the Onsager transport equations. This framework provides clear physical interpretation of transport coefficients and can be easily computed from molecular simulations. Through case studies, it is shown how this framework can clarify nonintuitive phenomena and inform design rules for improved systems.

MACROMOLECULES (2021)

Article Chemistry, Physical

Potentiometric MRI of a Superconcentrated Lithium Electrolyte: Testing the Irreversible Thermodynamics Approach

Andrew A. Wang et al.

Summary: Superconcentrated electrolytes provide a rigorous testing ground for continuum transport theories. Experimental results using LiPF6:EMC show consistent ion distributions and overpotentials as predicted by the theoretical model. The study reveals strong cation-anion interactions and extreme solute-volume effects in electrolytic transport phenomena.

ACS ENERGY LETTERS (2021)

Article Chemistry, Physical

Solvate Cation Migration and Ion Correlations in Solvate Ionic Liquids

Florian Schmidt et al.

JOURNAL OF PHYSICAL CHEMISTRY B (2020)

Article Chemistry, Physical

Ion Pairing and Redissociaton in Low-Permittivity Electrolytes for Multivalent Battery Applications

Julian Self et al.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2020)

Article Chemistry, Physical

Assessing the levelized cost of vanadium redox flow batteries with capacity fade and rebalancing

Kara E. Rodby et al.

JOURNAL OF POWER SOURCES (2020)

Article Biochemical Research Methods

Improved accuracy and precision in electrophoretic NMR experiments. Current control and sample cell design

Yuan Fang et al.

JOURNAL OF MAGNETIC RESONANCE (2020)

Article Electrochemistry

Theoretical Interpretation of Ion Velocities in Concentrated Electrolytes Measured by Electrophoretic NMR

Ksenia Timachova et al.

JOURNAL OF THE ELECTROCHEMICAL SOCIETY (2019)

Article Electrochemistry

Temperature and Concentration Dependence of the Ionic Transport Properties of Lithium-Ion Battery Electrolytes

Johannes Landesfeind et al.

JOURNAL OF THE ELECTROCHEMICAL SOCIETY (2019)

Article Chemistry, Multidisciplinary

Supramolecular Regulation of Anions Enhances Conductivity and Transference Number of Lithium in Liquid Electrolytes

Bo Qiao et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2018)

Article Polymer Science

Nanoparticle-Driven Assembly of Highly Conducting Hybrid Block Copolymer Electrolytes

Irune Villaluenga et al.

MACROMOLECULES (2015)

Article Chemistry, Physical

Ion association in aqueous and non-aqueous solutions probed by diffusion and electrophoretic NMR

Marianne Giesecke et al.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2015)

Article Chemistry, Physical

Nonlinear effects on electrokinetics of a highly charged porous sphere

Partha P. Gopmandal et al.

COLLOID AND POLYMER SCIENCE (2014)

Article Chemistry, Multidisciplinary

Pathways to low-cost electrochemical energy storage: a comparison of aqueous and nonaqueous flow batteries

Robert M. Darling et al.

ENERGY & ENVIRONMENTAL SCIENCE (2014)

Article Chemistry, Physical

Observation of separate cation and anion electrophoretic mobilities in pure ionic liquids

Zhiyang Zhang et al.

JOURNAL OF CHEMICAL PHYSICS (2014)

Article Radiology, Nuclear Medicine & Medical Imaging

Use of ethylene glycol to evaluate gradient performance in gradient-intensive diffusion MR sequences

William M. Spees et al.

MAGNETIC RESONANCE IN MEDICINE (2012)

Article Chemistry, Physical

Influence of the shape of a polyelectrolyte on its electrophoretic behavior

Jyh-Ping Hsu et al.

SOFT MATTER (2012)

Article Polymer Science

Counterion Condensation and Effective Charge of PAMAM Dendrimers

Ute Boehme et al.

POLYMERS (2011)

Article Chemistry, Physical

Effect of electric field on the mobility of carboxyl-terminated dendrimers

E Seyrek et al.

JOURNAL OF PHYSICAL CHEMISTRY B (2004)

Article Chemistry, Physical

On experimental aspects of electrophoretic NMR

E Pettersson et al.

CONCEPTS IN MAGNETIC RESONANCE PART A (2004)

Article Chemistry, Physical

Molecular dynamics simulations of multicomponent diffusion. 1. Equilibrium method

DR Wheeler et al.

JOURNAL OF PHYSICAL CHEMISTRY B (2004)

Article Chemistry, Physical

Effective charge of poly(styrenesulfonate) and ionic strength -: an electrophoresis NMR investigation

U Böhme et al.

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS (2003)

Article Biochemical Research Methods

Convection compensated electrophoretic NMR

QH He et al.

JOURNAL OF MAGNETIC RESONANCE (2001)