Solid-state batteries with inorganic solid electrolytes are currently being discussed as a more reliable and safer future alternative to the current lithium-ion battery technology. To compete state-of-the-art batteries, higher ionic conductivities needed, especially if thick electrode configurations be used. In search for optimized conductors, lithium argyrodites have attracted lot of interest. Here, we systematically explore influence aliovalent substitution in Li6+ xP1- xGe xS5I using...

A detailed structural characterization is performed on β-Li3PS4 using 6Li and 31P magic-angle spinning NMR spectroscopy in combination with X-ray neutron diffraction. High-temperature synchrotron diffraction was used to determine the phase stability observe transitions. In addition, we investigated Li+-ion dynamics by temperature-dependent 7Li lineshape analysis, relaxometry, pulsed field-gradient (PFG) measurements. good agreement obtained between local hopping observed T1 relaxation time...

Limited energy density of today's Li-ion battery technologies demands for novel cell technologies, such as the all-solid-state (ASSB). In order to achieve high densities and enable large-scale processing, thin flexible solid electrolyte (SE) layers have be implemented. This study focuses on slurry-based processing sulfidic Li10SnP2S12 (LSPS). Various polymers were investigated concerning their suitability binders freestanding SE sheets. We conducted a parameter in optimize e.g....

Glass–ceramic solid electrolytes have been reported to exhibit high ionic conductivities. Their synthesis can be performed by crystallization of mechanically milled Li2S–P2S5 glasses. Herein, the amorphization process (75:25) induced ball milling was analyzed via X-ray diffraction (XRD), Raman spectroscopy, and 31P magic-angle spinning nuclear magnetic resonance (NMR) spectroscopy. Several structural building blocks such as [P4S10], [P2S6]4–, [P2S7]4–, [PS4]3– occur during this process. In...

High-entropy ceramics are attracting large interest because of their unique materials properties. Nevertheless, the effect entropy on lithium transport remains largely elusive. Here, we report, for first time, about medium- and high-entropy polyanionic superionic conductors crystallizing in F–43m space group adopting so-called argyrodite structure. The Li6PS5[Cl0.33Br0.33I0.33], Li6P[S2.5Se2.5][Cl0.33Br0.33I0.33], Li6.5[Ge0.5P0.5][S2.5Se2.5][Cl0.33Br0.33I0.33] were structurally characterized...

The interest in all solid-state batteries has increased notably over the last years. Reasons are, among others, demand for higher energy densities storage devices and considerable safety issues classical battery systems based on liquid electrolytes. One solution is usage of solid electrolytes systems. Because crystal structure highly correlates with ion migration, focus our work a detailed determination Li pathways electrolyte argyrodite-type Li6PS5Cl. With neutron diffraction an additional...

For the first time, we have demonstrated site-resolved measurement of reliable (i.e., free interfering effects) 15N R1ρ relaxation rates from a solid protein to extract dynamic information on microsecond time scale. NMR were measured as function residue number in 15N,2H-enriched (with 10−20% back-exchanged protons at labile sites) microcrystalline SH3 domain chicken α-spectrin. The experiments performed different temperatures and spin-lock frequencies, which realized by on- off-resonance...

Well-defined poly(ethylene glycol) (PEG) networks were synthesized using copper(I)-catalyzed azide–alkyne cycloaddition (CuAAC). Two types of PEG network structures prepared (i) by linking two three-arm star oligomers together and (ii) connecting units with bifunctional linear different molar masses. End-group functionalization to azide alkyne moieties was performed while for CuAAC the catalytic system CuSO4 sodium ascorbate in aqueous environment used. The successful conversion precursors...

15N NMR relaxation rate R1ρ measurements reveal that a substantial fraction of residues in the microcrystalline chicken alpha-spectrin SH3 domain protein undergoes dynamics μs–ms timescale range. On basis comparison 2D site-resolved with 1D integrated spectral intensities, we demonstrate significant broad signals spectrum exhibits most pronounced slow mobility. We show R1ρ's proton-diluted samples are practically free from coherent spin–spin contribution even at low MAS rates, and thus can...

Multinuclear solid-state nuclear magnetic resonance spectroscopy was used in combination with Mössbauer and synchrotron diffraction to investigate the local long-range structure as well Li-ion dynamics a Li10SnP2S12-based composite. Although two additional phases could be detected (Li7PS6 Li4SnS4), Li ion turn out very fast diffusion coefficient of 1.6 × 10–12 m2/s, Li+ conductivity ∼2 mS/cm (both at 303 K), small activation barrier 0.13 eV for single jumps.

Through controlling the cross-linking and thickness of low-cost methylated polybenzimidazole anion exchange membranes by using imidazolium chloride as a catholyte additive, we improved energy efficiency at current density 100 mA cm–2 for all-vanadium redox flow batteries (RFBs) to 82%, compared 76% with Nafion 212 membrane 67–78% previously reported standard electrolyte. Moreover, thermal stability analysis charged catholytes, direct observations vanadium precipitation variable temperature...

Abstract Replacing liquid electrolytes with solid ones can provide advantages in safety, and all‐solid‐state batteries are proposed to solve the issue of formation lithium dendrites. In this study, a crosslinked polymer composite electrolyte was presented, which enabled construction outstanding electrochemical behavior over long‐term cycling. The polymeric host synthesized through polymerization terminal amines O,O‐bis(2‐aminopropyl) polypropylene glycol‐ block ‐polyethylene ‐polypropylene...

Polymer electrolytes are considered potential key enablers for lithium-metal batteries due to their compatibility with the negative electrode. Herein, cross-linked self-standing single-ion conducting polymer obtained via a facile UV-initiated radical polymerization using pentaerythritol tetraacrylate as cross-linker and lithium (3-methacryloyloxypropylsulfonyl)-(trifluoromethylsulfonyl)imide ionic functional group. Incorporating propylene carbonate charge-transport supporting additive...

Gelatin nanoparticles can be tuned with respect to their drug loading efficiency, degradation rate, and release kinetics, which renders these carriers highly suitable for a wide variety of biomedical applications. The ease functionalization has rendered gelatin an interesting candidate material introduce specific motifs selective targeting organs, but have not yet been modified increase affinity mineralized tissue. By means conjugating bone‐targeting alendronate biocompatible nanoparticles,...

Ionic liquids are attractive and safe electrolytes for diverse electrochemical applications such as advanced rechargeable batteries with high energy densities. Their properties that beneficial storage conversion include negligible vapor-pressure, intrinsic conductivity well stability. To explore the suitability of a series ionic small ammonium cations potential battery applications, we investigated their thermal transport properties. We studied influence symmetrical imide-type anions...

In recent years, the search for glassy and ceramic Li+ superionic conductors has received significant attention, mainly due to renaissance of interest in all-solid-state batteries. Here, we report mechanochemical synthesis metastable Li7GeS5Br, which is, best our knowledge, first compound Li2S-GeS2-LiBr system. Applying combined synchrotron X-ray diffraction neutron powder diffraction, show Li7GeS5Br crystallize F4̅3m space group be isostructural with argyrodite-type Li6PS5Br, but a distinct...

The response to hydration of the internal protein dynamics was studied by means solid state NMR relaxation and magic angle spinning exchange techniques. Two proteins, lysozyme from bacteriophage T4 human αB-crystallin were used as exemplars. rates R1 R1ρ 13C 15N nuclei measured a function level proteins in range 0−0.6 g water/g protein. Both totally 15N-enriched with natural abundance. for different spectral bands (peaks) that enabled characterization separately backbone, side chains, CH3...

Novel hybrid particles are synthesized using alendronate and bioactive glass, which can stimulate regeneration of osteoporotic bone defects.

Proton-conducting ionic liquids (PILs) are discussed herein as potential new electrolytes for polymer membrane fuel cells, suitable operation temperatures above 100 °C. During cell operation, the presence of significant amounts residual water is unavoidable, even at these elevated temperatures. By using electrochemical and NMR methods, impact on 2-sulfoethylmethylammonium triflate [2-Sema][TfO], 1-ethylimidazolium [1-EIm][TfO] diethylmethylammonium [Dema][TfO] analyzed. The cationic acidity...

We investigated why commercial Li7La3Zr2O12 (LLZO) with Nb- and Ta substitution shows very low mobility on a local scale, as observed temperature-dependent NMR techniques, compared to Al W substituted samples, although impedance spectroscopy sintered pellets suggests something else: conductivity values do not show strong dependence the type of substituting cation. that mechanical treatment these materials causes symmetry reduction from garnet hydrogarnet structure. To understand impact this...

Eight new polymerized ammonium-based ionic liquids were prepared as thin membrane films and evaluated within the scope of their usage in lithium-ion batteries. The focus this work is to get a better understanding influence structural modifications monomers on materials. Further, different concentrations conducting salt applied order receive an optimized combination monomer structure lithium concentration. It was found that increased side chain length studied leads reduction glass transition...

In addressing the potential use of B-factors derived from X-ray scattering data proteins for understanding (functional) dynamics proteins, we present a comparison five different (SH3 domain, Crh, GB1, ubiquitin and thioredoxin) with recent solid-state nuclear magnetic resonance experiments reflecting true (rotational) on well-defined timescales. Apart trivial correlations involving mobile loop regions chain termini, find no significant correlation dynamic any investigated timescales,...

Abstract The development of new materials for tomorrow's electrochemical energy storage technologies, based on thoroughly designed molecular architectures is at the forefront research. In this line, we report herein a class organic lithium‐ion battery electrolytes, thermotropic liquid crystalline single‐ion conductors, which charge transport decoupled from dynamics (i. e., obeys Arrhenius‐type conductivity) just like in inorganic (single‐)ion conductors. Focusing an in‐depth understanding...