Electrochemical Discovery Laboratory
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Role of Structural Hydroxyl Groups in Enhancing Performance of Electrochemically-Synthesized Bilayer V2O5
Structural OH species, an intrinsic feature of electrochemically-synthesized V2O5 (EC-V2O5), are highly thermally and electrochemically stable and are responsible for the improved cycle life and reversible capacity of these materials for beyond-lithium-ion systems. Read More
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The Electrochemical Discovery Laboratory
The Electrochemical Discovery Laboratory (EDL) — a key JCESR discovery tool located at Argonne — synthesizes high-quality materials for testing in beyond-lithium-ion batteries and characterizes their properties with state-of-the-art analytical techniques. Read More
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Water as a Catalyst – Improving how Batteries Function
Anyone who has ever dropped a cell phone in the sink will tell you that electrical devices and water do not go together. However, a new study has shown that conventional wisdom may not hold on the molecular scale in some beyond-lithium-ion batteries. Read More
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Trace Water Catalyzes Lithium Peroxide Electrochemistry
Water at ppm levels catalyzes the conversion of lithium superoxide (LiO2) to lithium peroxide (Li2O2) by the reaction cycle shown. Because water is not consumed in the cycle, trace amounts leverage large effects. Read More
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EDL: Discovering Electrochemistry at Atomic and Molecular Levels
Established in situ Electrochemical Discovery Lab (EDL) for systematic studies of wet and dry interfaces for materials-by-design and electrolytes-by-design at atomic and molecular levels Read More
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Toward the Development of a High-VoltageMg Cathode Using a Chromium Sulfide Host
The electrochemical behavior of MgM2S4 (M = Ti, Cr) thiospinels was investigated experimentally and their redox activity was understood through analysis of the computed electronic density of states. Read More
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Understanding and enhancing ion transport in a systematic series of polyacetal electrolytes
Polyacetal electrolytes can electrochemically outperform the well-established poly(ethylene oxide) systems used in Li-ion batteries. In this work, we employ a suite of experimental and theoretical techniques to reveal the underlying molecular interactions between cations, anions and the polyacetal host that lead to improved electrochemical efficacy. Read More
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A Comparative Study of Organic Radical Cation Stability and Coulombic Efficiency for Nonaqueous Redox Flow Battery Applications
The charged forms of high oxidation potential posolytes exhibited either self-discharge or a combination of self-discharge and molecular degradation, limiting CE and/or cycle lifetime in the galvanostatic cycling, presenting a challenge of utilizing high potential compounds in nonaqueous RFBs. Read More
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Employing the Dynamics of the Electrochemical Interface at Aqueous Zinc-Ion Battery Cathode
This report illustrates how dissolution, once seen as a fundamental drawback for MnO2 cathodes, can fortify capacity in AZIBs and provides guidance for expanding this concept and developing other systems that can reversibly deposit and dissolve the active material in a dynamic manner. Read More
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Understanding of electrolyte solution chemistry and interface electrochemistry of divalent metal batteries
This review discusses the design of electrolytes that involve different solvation structures related, in particular, the choice of anionic species. It focuses on the dynamic interplay of these electrolytes with interfaces as well as the electrochemistry of divalent metal anodes. Read More
