Lithium metal batteries operated with high voltage cathodes are predestined for the realization of high energy storage systems, where solid polymer electrolytes offer a possibility to improve battery safety. AlO_PCL is introduced as promising hybrid electrolyte made from polycaprolactone (PCL) and AlO nanoparticles that can be prepared in a one-pot synthesis as a random mixture of linear PCL and PCL-grafted AlO. Upon grafting, synergistic effects of mechanical stability and ionic conductivity are achieved.
View Article and Find Full Text PDFSolid-state batteries (SSBs) are promising candidates to significantly exceed the energy densities of today's state-of-the-art technology, lithium-ion batteries (LIBs). To enable this advancement, optimizing the solid electrolyte (SE) is the key. β-Li PS (β-LPS) is the most studied member of the Li S-P S family, offering promising properties for implementation in electric vehicles.
View Article and Find Full Text PDFThe performance of rechargeable magnesium batteries is strongly dependent on the choice of electrolyte. The desolvation of multivalent cations usually goes along with high energy barriers, which can have a crucial impact on the plating reaction. This can lead to significantly higher overpotentials for magnesium deposition compared to magnesium dissolution.
View Article and Find Full Text PDFThe emergency department (ED) is one of the crucial parts of the hospital infrastructure during all phases of the pandemic. The ED plays an important part in detecting an increasing number of new contagious diseases, which could potentially lead to an epidemic or pandemic.During a pandemic, the ED's main task is to detect infected individuals.
View Article and Find Full Text PDFThe choice of electrolyte has a crucial influence on the performance of rechargeable magnesium batteries. In multivalent electrolytes an agglomeration of ions to pairs or bigger clusters may affect the transport in the electrolyte and the reaction at the electrodes. In this work the formation of clusters is included in a general model for magnesium batteries.
View Article and Find Full Text PDFACS Appl Mater Interfaces
February 2020
All-solid-state batteries (ASSBs) present a promising route toward safe and high-power battery systems in order to meet the future demands in the consumer and automotive market. Composite cathodes are one way to boost the energy density of ASSBs compared to thin-film configurations. In this manuscript, we investigate composites consisting of β-LiPS (β-LPS) solid electrolyte and high-energy Li(NiMnCo)O (NMC622).
View Article and Find Full Text PDFThe development of high-capacity, high-performance all-solid-state batteries requires the specific design and optimization of its components, especially on the positive electrode side. For the first time, we were able to produce a completely inorganic mixed positive electrode consisting only of LiCoO and Ta-substituted LiLaZrO (LLZ:Ta) without the use of additional sintering aids or conducting additives, which has a high theoretical capacity density of 1 mAh/cm. A true all-solid-state cell composed of a Li metal negative electrode, a LLZ:Ta garnet electrolyte, and a 25 μm thick LLZ:Ta + LiCoO mixed positive electrode was manufactured and characterized.
View Article and Find Full Text PDFThis article introduces an efficient technique for the calculation of vapor-liquid equilibria of fluids. Umbrella Sampling Monte Carlo simulations in the grand canonical ensemble were conducted for various types of molecules. In Umbrella Sampling, a weight function is used for allowing the simulation to reach unlikely states in the phase space.
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