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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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Enhanced Ion Conduction via a Diverse Cl-PS 4 Anion Lattice in Li 3 PS 4 – x LiCl
Not provided.
Fast Ion-Conducting Thioboracite with a Perovskite Topology and Argyrodite-like Lithium Substructure
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High carbonate ion conductance of a robust PiperION membrane allows industrial current density and conversion in a zero-gap carbon dioxide electrolyzer cell
A new anion exchange membrane (PiperION) in conjunction with a tailored zero-gap electrolyzer cell allows unprecedented partial current densities.
Li-ion conductivity in Li[subscript 2]OHCl[subscript 1;#8722;x]Br[subscript x] solid electrolytes: g
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Self-sufficient metal–air battery systems enabled by solid-ion conductive interphases
Rechargeable metal–air batteries operated in ambient air fail as a result of complex anode surface reactions. Interphases composed of metallic In protect Li anodes, enabling Li–air batteries to operate in ambient air.
Strain Sensitivity of Li -ion Conductivity in β - Li 3 PS 4 Solid Electrolyte
Not Available
Computationally Assisted Design of Ion-conducting Polymers for Anion Exchange Membrane Fuel Cells (2nd Year Report) [Slides]
Phosphonated polymers have been proposed as proton conductors for fuel cells; however, the anhydride formation of phosphonic acid functional groups lowers proton conductivity and hinders their use in fuel cell applications. We used calculations to support this hypothesis by correlating calculated Gibbs free energies for the formation of the anhydride with pK values of the corresponding acid. The results showed that stronger acids are less likely to form an anhydride even at elevated temperatures and supported the design of a new polymer and the high-temperature proton exchange membrane fuel cell (HT-PEMFC) that outperformed other state-of-the-art HT-PEMFCs.
Large-Area Lithium Electrode Sub-Assemblies (LESAs) Protected by Self Forming Microstructured Polymer-Inorganic Single-Ion Conducting Composites (Final Report)
The aim of this project is to realize a low-cost, safe, reversible, high-areal capacity lithium metal electrode though the use of scalable, low-cost Lithium Electrode Sub-Assembly (LESA). At its core, the LESA applies novel polymer scaffolds to nanostructure inorganic ionic materials into high-conductivity composites that stabilize lithium anodes during high-rate, high-capacity cycling in lithium metal batteries. Fundamental investigations from this project identified a newly defined region of stability for composites with respect to the shear modulus and lithium molar volume ratio which have been broadly applied in the scientific literature for a multitude of different systems. The advancements achieved in this field have furthered the fundamental understanding of lithium metal electrode chemistry and degradation mechanisms and resulted in a lithium metal anode with improved cycle life.
Insights into Hydrated Ion-Conducting Polymers from MD Simulations.
Abstract not provided.
Using Simulations to Relate Morphology and Dynamics in Hydrated Ion-Conducting Polymers
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Simulations of swollen, self-assembled single-ion-conducting multiblock copolymers
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Water and Ion Transport in Hydrated Ion-Conducting Polymers
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Ionic Aggregate Morphology and Ion Transport in Single-Ion Conducting Polymers.
Abstract not provided.
Multi-Functional and Conformal Na-Ion Conducting Membrane for Dendrite and Polysulfide Shuttle Suppression for Next Generation Room Temperature Sodium-Sulfur Batteries
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Confinement Promotes Hydrogen Bond Network Formation and Grotthuss Proton Hopping in Ion-Conducting Block Copolymers
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