4.6 Article

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

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
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)

Article Polymer Science

Limiting Current in Nanostructured Block Copolymer Electrolytes

Jacqueline A. Maslyn et al.

Summary: The study shows that the limiting current density in composite electrolytes increases with the volume fraction of the PEO block. Using the concentrated solution theory enables accurate predictions of limiting current density, with quantitative agreement between experimental measurements and theoretical predictions.

MACROMOLECULES (2021)

Article Chemistry, Multidisciplinary

3D Detection of Lithiation and Lithium Plating in Graphite Anodes during Fast Charging

Alec S. Ho et al.

Summary: The research found that during fast charging, mossy lithium metal forms a layer between the graphite electrode and separator, causing some graphite particles to be underlithiated. This lithium plating layer inhibits further lithiation of the underlying electrode.

ACS NANO (2021)

Article Polymer Science

Uncovering Local Correlations in Polymer Electrolytes by X-ray Scattering and Molecular Dynamics Simulations

Whitney S. Loo et al.

Summary: This study conducted a quantitative analysis of WAXS profiles for PEO/LiTFSI mixtures at different salt concentrations, revealing abnormal scattering signatures and using molecular dynamics simulations to uncover the molecular origins of these features. While there was qualitative agreement between experimental and simulated results, quantitative discrepancies were resolved by introducing a charge rescaling factor. The simulations with charge rescaling predicted the formation of anion-rich clusters at higher salt concentrations than observed from experimental data, providing insights into short-range correlations between ions that affect clustering and ion-transport properties.

MACROMOLECULES (2021)

Article Chemistry, Physical

Electrochemical properties of poly(ethylene oxide) electrolytes above the entanglement threshold

Kevin W. Gao et al.

Summary: The study shows that the independence of ion transport on molecular weight in polymer electrolytes helps minimize experimental uncertainty. While conductivity, salt diffusion coefficient, and thermodynamic factor are all positive as required, the cation transference number may exhibit negative values within a certain salt concentration range, warranting further investigation.

SOLID STATE IONICS (2021)

Article Multidisciplinary Sciences

Characterising lithium-ion electrolytes via operando Raman microspectroscopy

Jack Fawdon et al.

Summary: Understanding electrolyte transport and thermodynamic properties is crucial for the development and success of Li-ion and beyond Li-ion technologies. This study presents a method for fully characterising electrolyte systems, providing key parameters using operando Raman microspectroscopy for visualization and correlation with bulk intermolecular electrolyte structure. The full characterisation of lithium-ion electrolytes is essential for continued advancement and innovation in lithium ion and lithium metal batteries.

NATURE COMMUNICATIONS (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

Interactions and Transport in Highly Concentrated LiTFSI-based Electrolytes

Viktor Nilsson et al.

CHEMPHYSCHEM (2020)

Article Chemistry, Physical

Ohm's law for ion conduction in lithium and beyond-lithium battery electrolytes

Michael D. Galluzzo et al.

JOURNAL OF CHEMICAL PHYSICS (2019)

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, Physical

Difference between approximate and rigorously measured transference numbers in fluorinated electrolytes

Deep B. Shah et al.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2019)

Article Electrochemistry

Comparing Cycling Characteristics of Symmetric Lithium-Polymer-Lithium Cells with Theoretical Predictions

Danielle M. Pesko et al.

JOURNAL OF THE ELECTROCHEMICAL SOCIETY (2018)

Article Electrochemistry

Negative Transference Numbers in Poly(ethylene oxide)-Based Electrolytes

Danielle M. Pesko et al.

JOURNAL OF THE ELECTROCHEMICAL SOCIETY (2017)

Article Chemistry, Physical

Direct determination of ionic transference numbers in ionic liquids by electrophoretic NMR

Martin Gouverneur et al.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2015)

Article Chemistry, Physical

Detection of subsurface structures underneath dendrites formed on cycled lithium metal electrodes

Katherine J. Harry et al.

NATURE MATERIALS (2014)

Article Chemistry, Physical

Glyme-Lithium Salt Equimolar Molten Mixtures: Concentrated Solutions or Solvate Ionic Liquids?

Kazuhide Ueno et al.

JOURNAL OF PHYSICAL CHEMISTRY B (2012)

Review Chemistry, Physical

Challenges for Rechargeable Li Batteries

John B. Goodenough et al.

CHEMISTRY OF MATERIALS (2010)

Article Biochemical Research Methods

Sensitive and robust electrophoretic NMR: Instrumentation and experiments

Fredrik Hallberg et al.

JOURNAL OF MAGNETIC RESONANCE (2008)

Article Electrochemistry

The use of UV/vis absorption to measure diffusion coefficients in LiPF6 electrolytic solutions

Sarah G. Stewart et al.

JOURNAL OF THE ELECTROCHEMICAL SOCIETY (2008)

Article Electrochemistry

Measuring the salt activity coefficient in lithium-battery electrolytes

Sarah Stewart et al.

JOURNAL OF THE ELECTROCHEMICAL SOCIETY (2008)

Article Electrochemistry

Transport properties of LiPF6-based Li-ion battery electrolytes

LO Valoen et al.

JOURNAL OF THE ELECTROCHEMICAL SOCIETY (2005)