Publikationsdatenbank

Der COUNTER Code of Practice (https://www.projectcounter.org) ist der Standard zu Erhebung von Nutzungsstatistiken elektronischer Produkte. Er ermöglicht Bibliotheken den Vergleich von Nutzungsstatistiken verschiedener Verlage und Anbieter [...]

We introduce a model of electrode–electrolyte interfacial growth which focuses on theeffect of thin coating layers on the interfacial stability in prestressed systems. We take into accounttransport resulting from deposition from the electrolyte, from capillarity driven surface diffusion, andfrom changes of the chemical potential due to the elastic energy associated with the interface profile.As model system, we use metallic lithium as electrode, LLZO as electrolyte and Al2O3 as a thin filminterlayer, which is a highly relevant interfacial system in state of the art all-solid-electrolyte batteries.We consider the stability of the electrode-coating-electrolyte interface depending on the thickness ofthe thin film interlayer and the magnitude of the elastic prestresses [...]

The understanding of the aging behavior of lithium ion batteries in automotive and energy storage applications is essential for the acceptance of the technology. Therefore, aging experiments were conducted on commercial 18650-type state-of-the-art cells to determine the influence of the temperature during electrochemical cycling on the aging behavior of the different cell components. [...]

The required boost in the specific energy of lithium-ion battery (LIB) cells can only be achieved by increasing the cell voltage and/or the specific capacities of the electrodes. In the latter regard, the positive electrode constitutes the specific energy bottleneck. [...]