Research Highlights
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The Influence of Current Density on Transport of Vanadium Cations through Membranes with Different Charges
Evaluated the transference numbers of four vanadium cations through positively, negatively, and initially uncharged membranes. Complete data sets collected including conductivity, transference number, and sorption. Read More
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Factors Influencing Preferential Anion Interactions during Solvation of Multivalent Cations in Ether-based Solvents
Discovered and described how solvent structure and cation size influence cation−anion interactions, suggesting that they drive the formation of free ions in ethereal multivalent electrolytes. Read More
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Multivalent Ion Transport in Anti-Perovskite Solid Electrolytes
A comprehensive computational approach is used to discover potential multivalent (MV)-ion conducting solid electrolytes (SEs) based on the anti-perovskite (AP) crystal structure. Read More
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Multivalent Ion Transport in Anti-Perovskite Solid Electrolytes
A comprehensive computational approach is used to discover potential multivalent (MV)-ion conducting solid electrolytes (SEs) based on the anti-perovskite (AP) crystal structure. Read More
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Nanoheterogeneity of LiTFSI Solutions Transitions Close to a Surface and with Concentration
The interfacial structure of the water-in-salt electrolytes (WiSE) on a mica surface is investigated. Nanostructures of 1nm to 3 nm are observed. The size of the nanostructure varies depending on the concentration of the LiTFSI/H2O system. Read More
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Functionalized Phosphonium Cations Enable Zn Metal Reversibility in Aqueous Electrolytes
The presence of P444(2O1)+ cation in aqueous electrolyte enhances Zn reversibility dramatically by enabling a high Coulombic efficiency (CE, > 99%) at high utilization (20% Zn per cycle) for Zn plating/stripping, suppressing hydrogen evolution, and allowing a remarkable dendrite-free cycling even under aggressive conditions (2.5 mA/cm2, 2.5 mAh/cm2). Read More
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In situ/operando (soft) X-ray spectroscopy study of beyond lithium-ion batteries
The application of in situ/operando (soft) X-ray spectroscopy in beyond lithium-ion batteries is reviewed to demonstrate how such spectroscopic characterizations could facilitate the interpretation of interfacial phenomena under in-situ/operando conditions and subsequent development of the beyond lithium-ion batteries. Read More
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Solvation Structure and Dynamics of Mg(TFSI)2 Aqueous Electrolyte
Using MD simulations, SAXS, and PFG-NMR, the solvation structure and ion dynamics of Mg(TFSI)2 aqueous electrolytes were investigated. We found the rigid solvation structure around Mg ion increases the effective ion size, which further leads to comparable diffusivity of Mg and TFSI ion, in contrast to the LiTFSI aqueous systems where the Li ion dynamic is faster than the anion. The correlated transference numbers for Mg ions are much lower than the uncorrelated ones even at a low concentration, suggesting the enhanced correlations between ions in the multivalent electrolytes. Read More
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Fabrication of high surface area ribbon electrodes for use in redox flow batteries via coaxial electrospinning
This work describes a simple and reliable method to electrospinning fibers with a flat ribbon-like morphology with increased surface area to volume ratio. The new materials outperformed commercial materials at low-to-moderate current density in an operating flow cell. Read More
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Insights into the Nanostructure, Solvation, and Dynamics of Liquid Electrolytes through Small‐Angle X‐Ray Scattering
We discussed the theory of the SAXS technique and SAXS data collection, processing, and analysis of liquid electrolytes. Also, the recent developments in understanding liquid electrolytes are summarized, including: the characterization of solvation structures, the liquid structures in a water-in-salt electrolyte, concentrated electrolyte, localized concentrated electrolyte, and ionic liquids. Read More
Latest Updates
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JCESR researchers testify before the House Science, Space and Technology Committee
JCESR researchers Kristin Persson and Fik Brushett testified May 4 before the House Science, Space and Technology Committee, Subcommittee on Energy, to share how the climate and energy science research sponsored by the Department of Energy’s (DOE) Office of Science … Read More
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The Influence of Current Density on Transport of Vanadium Cations through Membranes with Different Charges
Evaluated the transference numbers of four vanadium cations through positively, negatively, and initially uncharged membranes. Complete data sets collected including conductivity, transference number, and sorption. Read More
-
Factors Influencing Preferential Anion Interactions during Solvation of Multivalent Cations in Ether-based Solvents
Discovered and described how solvent structure and cation size influence cation−anion interactions, suggesting that they drive the formation of free ions in ethereal multivalent electrolytes. Read More
-
Multivalent Ion Transport in Anti-Perovskite Solid Electrolytes
A comprehensive computational approach is used to discover potential multivalent (MV)-ion conducting solid electrolytes (SEs) based on the anti-perovskite (AP) crystal structure. Read More
-
Multivalent Ion Transport in Anti-Perovskite Solid Electrolytes
A comprehensive computational approach is used to discover potential multivalent (MV)-ion conducting solid electrolytes (SEs) based on the anti-perovskite (AP) crystal structure. Read More
