Structural Disorder in LiPSI Speeds Li Nuclear Spin Recovery and Slows Down P Relaxation-Implications for Translational and Rotational Jumps as Seen by Nuclear Magnetic Resonance.

Lithium-thiophosphates have attracted great attention as they offer a rich playground to develop tailor-made solid electrolytes for clean energy storage systems. Here, we used poorly conducting LiPSI, which can be converted into a fast ion conductor by high-energy ball-milling to understand the fundamental guidelines that enable the Li ions to quickly diffuse through a polarizable but distorted matrix. In stark contrast to well-crystalline LiPSI (10 S cm), the ionic conductivity of its defect-rich nanostructured analog touches almost the mS cm regime.

Rapid Low-Dimensional Li Ion Hopping Processes in Synthetic Hectorite-Type Li[MgLi]SiOF.

Understanding the origins of fast ion transport in solids is important to develop new ionic conductors for batteries and sensors. Nature offers a rich assortment of rather inspiring structures to elucidate these origins. In particular, layer-structured materials are prone to show facile Li transport along their inner surfaces.

Understanding the Origin of Enhanced Li-Ion Transport in Nanocrystalline Argyrodite-Type LiPSI.

Argyrodite-type LiPSX (X = Cl, Br) compounds are considered to act as powerful ionic conductors in next-generation all-solid-state lithium batteries. In contrast to LiPSBr and LiPSCl compounds showing ionic conductivities on the order of several mS cm, the iodine compound LiPSI turned out to be a poor ionic conductor. This difference has been explained by anion site disorder in LiPSBr and LiPSCl leading to facile through-going, that is, long-range ion transport.

Improving isobutanol production with the yeast by successively blocking competing metabolic pathways as well as ethanol and glycerol formation.

Background: Isobutanol is a promising candidate as second-generation biofuel and has several advantages compared to bioethanol. Another benefit of isobutanol is that it is already formed as a by-product in fermentations with the yeast , although only in very small amounts. Isobutanol formation results from valine degradation in the cytosol via the Ehrlich pathway.

Substitutional disorder: structure and ion dynamics of the argyrodites LiPSCl, LiPSBr and LiPSI.

For the development of safe and long-lasting lithium-ion batteries we need electrolytes with excellent ionic transport properties. Argyrodite-type Li6PS5X (X: Cl, Br, I) belongs to a family of such a class of materials offering ionic conductivities, at least if Li6PS5Br and Li6PS5Cl are considered, in the mS cm-1 range at room temperature. Although already tested as ceramic electrolytes in battery cells, a comprehensive picture about the ion dynamics is still missing.