Research Highlights
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Realizing the Full Potential of Insertion Anodes for Mg-ion Batteries Through the Nano-Structuring of Sn
High resolution STEM and Density Functional Theory were used in tandem to analyze the performance of SbSn anodes for Mg-ion batteries, shedding light on transport mechanisms and transport limitations of Mg2+ ions in the structure Read More
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Spinel Compounds as Multivalent Battery Cathodes: A Systematic Evaluation Based on ab initio Calculations
A high-throughput strategy to systematically screen multivalent cathode materials based on comprehensive computational first-principles property evaluations has been developed and has been used to identify Mn2O4 as a feasible host candidate, with Ca2+ and possibly Mg2+ as mobile cations Read More
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Electrode Interface Dictates Oxygen Evolution from Lithium Peroxide in Li-O2 Batteries
Identification of the critical role the surface properties of metallic TiC & TiN supports play in Li-O2 electrochemistry. Oxygen evolution from bulk Li2O2 is enabled by "clean" surfaces but completely inhibited by 2-3 nm thick TiO2 films. Read More
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Dendrite-Free Lithium Deposition with Self-Aligned Nanorod Structure
Using an electrolyte additive that can suppress Li dendrite formation and improve the performance of Li metal batteries, we have achieved for the first time the growth of dendrite-free lithium films with self-aligned and highly-compacted nanorod structure. Read More
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Liquid Catholyte Molecules for Non-aqueous Redox Flow Batteries
A new series of novel dimethoxybenzene based catholyte molecules were developed in order to further improve the solubility by tuning chemical structures Read More
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Synergistic Effects of Mixing Sulfone and Ionic Liquid as Safe Electrolytes for Lithium Sulfur Batteries
A strategy of mixing both an ionic liquid and sulfone is applied in Li-S batteries to give synergistic effects of reducing viscosity, increasing ionic conductivity, reducing polysulfide dissolution, and improving safety. Read More
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Understanding the Structural and Electronic Evolution of Li2MnO3 During Electron Irradiation Via Electron Microscopy
Electrochemical cycling induces irreversible changes to the oxide structure such as Li/O evolution and crystal rearrangements Read More
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Understanding Side Reactions in K-O2 Batteries for Improved Cycle Life: a Combined DFT and Experimental Study
First comprehensive study of side reactions that dictate the fundamental electrochemistry of K-O2 battery has been carried out Read More
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High Rate and Stable Cycling of Lithium Metal Anode
Lithium metal is an ideal battery anode. However, dendrite growth and limited CE during cycling have limited its practical applications. High CE (up to 99.1%) without dendrite growth is achieved by using highly concentrated electrolytes for lithium plating/stripping. Read More
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Mechanistic Insight into the Formation of Cationic Naked Nanocrystals Generated Under Equilibrium Control
Developed a class of ligand-stripping reagents that stabilize the nanocrystal (NC) surface during the stripping reaction, leading to improved dispersibility. Read More
Latest Updates
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JCESR-supported research makes cover of Science: New electrolyte bolsters rechargeable battery design
This press release was authored by the A. James Clark School of Engineering, University of Maryland. The energy contained within lithium-ion batteries has the potential to reshape the technology of the future battlefield, creating a worldwide demand for key lithium-ion battery materials … Read More
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Critical Role of Structural Order in Bipolar Redox‐Active Molecules for Organic Redox Flow Batteries
Bipolar redox-active molecules have been suggested as a means to address crossover related issues in all-organic redox flow batteries. The present work describes a fundamental rubric to uncover the likely origins in the performance metrics of these bipolar molecules that are salient for their use … Read More
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Counterion-dependent charge transport in viologens
Our results show that charge transport in viologens critically relies the electrochemical environment and is particularly sensitive to the electrolyte counteranion. We use an electrochemical gating technique to understand charge transport in viologens as a function of the redox state and electrochemical environment. Molecular modeling … Read More
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Quantifying and Suppressing Proton Intercalation to Enable High-Voltage Zn-Ion Batteries
The relative contributions of Zn2+ and H+ insertion to the overall capacity of VPO4F are differentiated and quantified in aqueous and hybrid electrolytes. Increasing the salt concentration and/or proportion of nonaqueous solvent successfully suppresses water dynamics, improving the anodic stability and promoting Zn2+ intercalation over … Read More
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Highly efficient charge transport at molecule-electrode interfaces
Our results show that resonant transport offers a highly efficient intramolecular charge transport mechanism that will enable long-range transport in electronic devices. We further develop a general quantitative relation to describe the non-resonant to resonant transition voltage VT as a function of molecular properties. Read More
