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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Li + Conduction in Glass-Forming Single-Ion Conducting Polymer Electrolytes with and without Ion Clusters
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Atomistic Mechanisms Underlying Non-Arrhenius Ion Transport in Superionic Conductor AgCrSe 2
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Ion–Solvent Interplay in Concentrated Electrolytes Enables Subzero Temperature Li-Ion Battery Operations
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Influence of Inorganic Glass Ceramic Particles on Ion States and Ion Transport in Composite Single-I
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Tuning the Solvation Structure in Aqueous Zinc Batteries to Maximize Zn-Ion Intercalation and Optimize Dendrite-Free Zinc Plating
Aqueous zinc batteries are recognized to suffer from H + /Zn 2+ coinsertion in the cathode, but few approaches have been reported to suppress deleterious H + intercalation. We realize this goal by tuning the solvation structure, using LiV 2 (PO 4 ) 3 (LVP) as a model cathode. Phase conversion of LVP induced by H + intercalation is observed in 4 m Zn(OTf) 2 , whereas dominant Zn 2+ insertion is confirmed in a ZnCl 2 water-in-salt electrolyte (WiSE). This disparity is ascribed to the complete absence of free water and a strong Zn 2+ –H 2 O interaction in the latter that interrupts the H 2 O hydrogen bonding network, thus suppressing H + intercalation. On the basis of this strategy, a novel PEG-based hybrid electrolyte is designed to replace the corrosive ZnCl2 WiSE. This system exhibits an optimized Zn 2+ solvation sheath with a similar low free water content, showing not only much better suppression of H + intercalation but also highly reversible Zn plating/stripping with a CE of ~99.7% over 150 cycles.
Reaction Mechanism of the Sn2Fe Anode in Lithium-Ion Batteries
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Stacking Faults Assist Lithium-Ion Conduction in a Halide-Based Superionic Conductor
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Oxide Acidity Modulates Structural Transformations in Hydrogen Titanates during Electrochemical Li-Ion Insertion
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Exploiting the paddle-wheel mechanism for the design of fast ion conductors
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Copper-coordinated cellulose ion conductors for solid-state batteries
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“Water-in-salt” polymer electrolyte for Li-ion batteries
An extended electrochemical stability window of 3.86 V is achieved at 12 mol kg −1 aqueous polymer electrolyte enabled 3 V full cells with an unprecedented high initial CE of 90.50% and average CE of 99.97%.